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Zebra GC420d

1. Ol O 5 il P1039494 001 GC420d User Guide 8 15 2011 8 15 2011 Label Dispenser Option 7 63 Ko ST 6 63 p LU 1 1 T 1 t t T LU Cutter Option VL GC420d User Guide External GK Printer Dimensions P1039494 001 89 90 External GK Printer Dimensions Notes P1039494 001 GC420d User Guide 8 15 2011 Appendix ZPL Configuration This section provides a basic overview of managing printer configuration the Configuring Status Printout and Printer Memory Printouts Contents Managing Printer Configuration with ZPL Programming 00000 eens 92 ZPL Configuration Status to Command Cross reference 93 Printer Memory Management and Related Status Reports 96 8 15 2011 GC420d User Guide P1039494 001 xal Managing Printer Configuration with ZPL Programming Managing Printer Configur
2. 27 Determining Printer Configuration eee ees 28 8 15 2011 GC420d User Guide P1039494 001 Long Term Printer In activity or Storage 2 0 aaa 28 Thermal PPP 2 c2e0ce4 ve cua Eu sU IS E Se LONG AKDA TA AG Saeco E MEME 28 Modes OD PINUNO sx osos vus 9 Ec rtr Hr BOR BLUR E booed Ba ee LUNGS kota ees NG 29 Print Media TypeS 1 0 0 rrr 29 Determining Thermal Media Types llle 31 Replacing Supplies llle rar 31 Adjusting the Print Width llli 31 Adjusting the Print Quality llli 32 Media Sensing s aga aag EU RREHPENRESE ERES dee wet see NEED qq E D EE Sues 33 Printing on Fan Fold Media lillllllllll rr 34 Printing with Externally Mounted Roll Media llle 36 Fonts and Your Printer 4 37 Localizing the Printer with Code Pages nanana cee eee 37 Identifying Fonts in Your Printer 4 38 Stand Alone Printing 4 39 Sending Files to the Printer n n anaana aana 40 Hide AA AA AA 40 EPLLING NO 40 A Printer ODIIORS 244264400440 sbieangadteees AA 41 Label Dispenser Option 4 42 CUNCHMODNON AS 45 Loading Media with the Cutter Option 0 0 aaa 46 ZebraNet 10 100 Internal Wired Print Server Option 000005 49 Printer Network Configuration Status Label 0 0 a 50 Zebra KDU Printer Accessory n naaa anaana 51 KDU Plus Printer Accessory 0 52 ZBI 2 0 Z
3. The Windows printer driver or application software may change these settings and may require a change to optimize print quality The media being used is incompatible with the printer Be sure to use the recommended media for your application and always use Zebra approved labels and tags e The printhead has worn out The printhead is a consumable item and will wear out due to friction between the media and printhead Using unapproved media may shorten life or damage your printhead Replace the printhead The platen may need cleaning or replacement The platen driver roller maybe losing traction due to e Foreign objects attached to its surface e The rubbery smooth surface has become polished and slippery or e There is damage to the normally smooth and flat print surface such as box knife cuts 8 15 2011 GC420d User Guide P1039494 001 72 Print Quality Problems There are long tracks of missing print blank vertical lines on several labels The printhead is dirty Clean the printhead The printhead elements are damaged The printing does not start at the top of the label or misprinting of one to three labels The media may not be threaded correctly Follow the instructions for Loading Roll Media on page 11 in the Getting Started section The printer needs to be calibrated Refer to the two flash sequence of Feed Button Modes on page 78 in this section ZPL Label Formats The correct media sensor may not b
4. Many of the print meter messages and reports are customize able See the ZPL or EPL Programming Guides for more information on the Print Meter To active the Print Meter Alerts send one of the following commands to the printer e EPL command oLY e ZPL command JH E EPL Line Mode P1039494 001 Your direct thermal printer supports Line Mode printing EPL Line Mode printing is designed to be command compatible with EPLI programming language used in early model LP2022 and LP2042 printers The Zebra 2800 series direct thermal printers also included Line Mode printer language support The GC420 continues Zebra s support of Line Mode Line mode printing is ideal for basic retail point of sale POS shipping inventory work flow control and general labeling EPL printers with Line Mode are versatile and are capable of printing a wide range media and bar codes Line Mode printing only prints single lines the height of the largest element present in the line of text and data bar code text a logo or simple vertical lines Line mode has many limitations due to the single line of print no fine element placement no overlapping elements and no horizontal ladder bar codes ine Mode printer operation is entered by sending the printer the EPL OEPL1 command See the EPL Programmers Guide Page Mode or the EPL Line Mode Programmers Guide Line Mode printer operation is exited by sending the printer the escOEPL2 Line Mode comm
5. a 28 Long Term Printer In activity or Storage 9 28 ee 29 Print Media Types exeant ded uere Eat es dE doe d eee de eee 29 Replacing Supplies P 31 Adjusting the Print Width 0 0 ccc eee n 31 Adjusting the Print Quality anaa a 32 Media SENSING wes cc aude HA gu eda ed ers PA eee eA wee eee ee eee gan 33 Printing on Fan Fold Media 0 cc eee eee Ine 34 Printing with Externally Mounted Roll Media a 36 Fonts and Your PAMGl cs uunc cewek wee bares oe ba KANA eee RC Sac RC eee s 37 Stand Alone PTning s ine x scat ica d melon d ratis modos dre dott node a a UG abu I UC Rol e ur m dS 39 Sending Files to the Printer llle 40 PARENCO DTI 40 EPL Line Mode L L 40 8 15 2011 GC420d User Guide P1039494 001 28 Determining Printer Configuration Determining Printer Configuration The printer uses a ZPL printer configuration status label to report the printer s configuration status for both EPL and ZPL operations The ZPL style label provides a more intuitive and functionally descriptive naming conventions than the EPL style printer status label Operational status darkness speed media type etc installed printer options network interface settings cutter etc and printer description information serial number model name firmware version etc are all includes on the status
6. Adjusting the Print Quality Print quality is influenced by the heat density setting of the printhead the print speed and the media in use Experiment with these settings to find the optimal mix for your application Print quality can be set with the Zebra Setup Utility s Configure Print Quality routine Note e Media manufactures may have specific recommendations for speed settings for your yd printer and the media Some media types have lower maximum speeds than your printer s maximum speed The relative darkness or density setting can be controlled by e The six flash sequence in Feed Button Modes on page 78 This will overwrite any ZPL and EPL programmed darkness density settings The Set Darkness SD ZPL command consult your ZPL Programming Guide e The Density D EPL command consult your EPL Programmer s Guide If you find that the print speed needs to be adjusted use e The Windows printer driver or application software such as ZebraDesigner The Print Rate PR command consult your ZPL Programming Guide e The Speed Select S command consult your EPL Programmer s Guide P1039494 001 GC420d User Guide 8 15 2011 33 Media Sensing Media Sensing 8 15 2011 The printer has automatic media sensing capability The printer is designed to continuously check and adjust media length sensing for minor variations Once the printer is printing or feeding media the printer continually checks and
7. FAREREI HMM Black mark media uses pre printed black marks on the back side of the media to indicate label separations NENNEN Perforated media has perforations that allow the labels or tags to be separated from each other easily The media may also have black marks or other separations between labels or tags Fan Fold media is folded in a zigzag pattern Fanfold media can have the same label separations as non continuous roll media The separations would fall on or near the folds Roll media is wound on a core that can be 0 5 to 1 5 in 12 7 to 38 1 mm in diameter Continuous roll media does not have gaps holes notches or black marks to indicate label separations This allows the image to be printed anywhere on the label A cutter can be used to cut apart individual labels With continuous media use the transmissive gap sensor so the printer can detect when the media runs out GC420d User Guide 8 15 2011 31 Replacing Supplies Determining Thermal Media Types Thermal transfer media requires ribbon for printing while direct thermal media does not To determine if ribbon must be used with a particular media perform a media scratch test To perform a media scratch test complete these steps 1 Scratch the print surface of the media with a finger nail or pen cap Press firmly and quickly while dragging it across the media surface Direct thermal media 1s chemically treated to print expose when heat is applied T
8. LABEL LENGTH 39 0IN SOS a anus MAXIMUM LENGTH CONNECTED x a USB COMM TR PROTOCOL LINER TAG FULL CUTTER TYPE C Ei aa oe eee E CONTROL CHAR 55 DE ee AG COMMAND CHAR Co Ph ede wees km DELIM CHAR PIC ZPL MODE NO POTION waaa a MEDIA POWER UP POOO ee Te Te HEAD CLOSE DEFBULT 44x edness BACKFEED TOO LS bee oe A HANG LABEL TOP TODO C y acea RR Rn LEFT POSITION NO aaa AA HEXDUMP WEB S al Pt MEDIA S c T WEB GAIN scr MARK S sy iw hc M eee ed MARK GAIN OSG M MARK MED S ara MARK MEDIA GAIN DSB rua xw WX RR CONT MEDIA S jl C M PP CONT MEDIA GAIN 066 GAAN ete ee TAKE LABEL p PIA MODES ENABLED rere ere ee ee er MODES DISABLED B32 B MM FULL sassa RESOLUTION V71 17 102P10 lt FIRMWARE er TT XML SCHEMA Ver UO Ul ls asas dees HARDWARE ID CUSTOMIZED CONF IGURATION PORK I aa c nena R RAM ODJEK OPO AAP E ONBOARD FLASH T FORMAT CONVERT DISBBLED i e Rr KA ZBI a rM ZBI VERSION 4 824 IN nnn LAST CLEANED 43624 wwe oss nes HEAD USAGE ae QE a TOTAL USAGE 45924 RESET CNTR1 45804 RESET CNTR2 erect ewede eas alae SERIAL NUMBER PIAINT OFF cya maawa EARLY WARNING PRINTER CONFIGURATION 2010 09 07 17 32 33 TIME STAMP FIRMWARE IN THIS PRINTER IS COPYRIGHTED Recalibration Recalibrate the printer if it starts to display unusual symptoms such as skipping labels Refer to the two flash sequence in Feed Button Modes on page 78 in th
9. Media Guides BlackLine inside Media Guide Adjustment Dispenser Door open Peel Bar Pinch Roller Label Taken Sensor P1039494 001 GC420d User Guide 8 15 2011 What s in the Box Operator Controls Power Switch Press up to turn ON or down to turn OFF the printer Caution The printer power should be turned off before connecting or disconnecting the communications and power cables Power Switch Power OFF Power ON Power Switch Feed Button Tap the Feed button once to force the printer to feed one blank label Press the Feed button to take the printer out of a pause condition The printer is put into pause by either a programming command or an error condition See What the Status Light is Telling You on page 68 in the Troubleshooting chapter e Use the Feed button for printer setup and status see Feed Button Modes on page 78 in the Troubleshooting chapter P1039494 001 GC420d User Guide 8 15 2011 What s in the Box Status Light Located on the top case next to the feed button the status light functions as a printer operational indicator see Status Light Descriptions on page 68 Feed Button Status Light 8 15 2011 GC420d User Guide P1039494 001 What s in the Box d Closing the printer 1 Lower the top cover 2 Press down until the cover snaps closed 8 15 2011 GC420d User Guide P10394
10. el 8 15 2011 GC420d User Guide P1039494 001 94 ZPL Configuration Status to Command Cross reference Table 2 ZPL Commands and Configuration Receipt Callout Cross Reference Command Listing Name Description SD DARKNESS Default 10 0 PR PRINT SPEED Default 4 IPS 101 6 mm s max TA TEAR OFF Default 000 MM PRINT MODE Default TEAR OFF MN MEDIA TYPE Default GAP NOTCH SENSOR TYPE Default WEB SENSOR SELECT Default AUTO MNA Auto Detect PW PRINT WIDTH Default 832 dots LL LABEL LENGTH Default 1225 dots the value constantly re calibrates with automatic Web Gap detection for label media ML MAXIMUM LENGTH Default 39 0IN 989MM USB COMM Connection Status Connected Not Connected PARALLEL COMM Connection Available BIDIRECTIONAL sCa BAUD Default 9600 SC b DATA BITS Default 8 BITS SC c PARITY Default NONE SC e HOST HANDSHAKE Default DTR amp XON XOFF SC PROTOCOL Default NONE SER COMM MODE Default AUTO CUTTER TYPE Option Present LINER TAG FULL cut CT CT CONTROL CHAR Default lt gt TEH cc cc COMMAND CHAR Default 5EH cD CD DELIM CHAR Default lt gt 2CH SZ ZPL MODE Default ZPL II MFa MEDIA POWER UP Default NO MOTION ME Pb HEAD CLOSE Default FEED JS BACKFEED Default DEFAULT LT LABEL TOP Default 000 LS LEFT POSITION Default 0000 JD JE HEXDUMP Default NO JE From this point in th
11. 6858 0722 F 65 6885 0836 E China order csr zebra com All other areas csasiapacific zebra com P1039494 001 Rev 1 viii Document Conventions Document Conventions gt gt gt gt The following conventions are used throughout this document to convey certain information Alternate Color online only Cross references contain hot links to other sections in this guide If you are viewing this guide online in pdf format you can click the cross reference blue text to jump directly to its location Command Line Examples Command line examples appear in Courier New font For example type ZTools to get to the Post Install scripts in the bin directory Files and Directories File names and directories appear in Courier New font For example the Zebra lt version number gt tar file andthe root directory Icons Used Caution Warns you of the potential for electrostatic discharge Caution Warns you of a potential electric shock situation Caution Warns you of a situation where excessive heat could cause a burn Caution Advises you that failure to take or avoid a specific action could result in physical harm to you Caution No icon Advises you that failure to take or avoid a specific action could result in physical harm to the hardware Important Advises you of information that is essential to complete a task Note Indicates neutral or positive information that emphasizes or suppleme
12. DC1 XON and DC3 XOFF The DTR control lead will have no effect Interconnecting to DCE Devices When the printer is connected via its RS 232 interface to data communication equipment DCE such as a modem a Null Modem RS 232 straight through interface cable must be used The figure below shows the connections required for this cable Connecting to the KDU Keyboard Display Unit The KDU was designed for DCE printer connections and does not require an adapter to communicate Connecting the Printer to a DCE Device DB 25S DB 9P DB 9S DB 9P Connector Connector Connector Connector to DCE Device to Printer to DCE Device to Printer O ON a 01b WON gt O ON a 01b WON gt O 00O N O 01k WON gt 2 3 4 5 6 7 8 20 22 8 15 2011 GC420d User Guide P1039494 001 86 Serial Port Interface s Notes P1039494 001 GC420d User Guide 8 15 2011 Appendix Dimensions This section provides external printer dimensions Contents External GK Printer Dimensions 0 0 0 00000000 ccc ee eee 88 Label Dispenser Option aaa 89 Cutter Option ne ene eee ene 89 8 15 2011 GC420d User Guide P1039494 001 88 External GK Printer Dimensions External GK Printer Dimensions All dimensions are in inches 11 91
13. Wiring This section provides printer interface connection information Contents Universal Serial Bus USB Interface 9 82 Parallel WINSTIACE aaa Se de KNA BEA WA NAMA AAAH MAGA KAG teak aada a amp 83 Ethernet Interface ee eee ees 84 Serial Port Interface co ee te ei oe ee etr dw ue a ee ete 85 8 15 2011 GC420d User Guide P1039494 001 82 Universal Serial Bus USB Interface Universal Serial Bus USB Interface The figure below displays the cable wiring required to use the printer s USB interface The printer requires cable or cable packaging that bears the Certified USB mark to guarantee USB 2 0 compliance a Shell Shield Drain Wire For printer supported operating systems and drivers see the software and documentation CD or visit the Zebra Web site at http www zebra com For information on the USB interface go to the USB web site at http www usb org P1039494 001 GC420d User Guide 8 15 2011 Parallel Interface 8 15 2011 Parallel Interface The printer s parallel interface uses the IEEE 1284 A to 1284 B parallel interface cables the host connector has a DB 25 pin male connector The printer connector is a Centronics style connector HOST SIROBE DATA 0 DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 ACK BUSY PAPER ERR SELECT AUTOFD ERROR N A N A N A SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND DB 25 Pin N
14. are not limited to length non continuous gap and web liner Otherwise you must send the ZPL or EPL programming commands to the printer When programming in ZPL you can use the following command sequences shown below and refer to your ZPL Programming Guide for more information on ZPL programming XA MMP XZ XA JUS XZ When programming in EPL send the Options O command with the P command parameter OP to enable the Label Taken sensor Other printer option parameters may also be included with the Options command string Refer to your EPL Programmer 5 Guide for more information on programming with EPL and the Options O command behaviors 1 Load your labels into the printer Close the printer and press the Feed button until a minimum of 4 inches or 100 millimeters of exposed labels exit the printer Remove the exposed labels from the liner GC420d User Guide 8 15 2011 43 Label Dispenser Option 2 Lift the liner over the top of the printer and open the dispenser door 8 15 2011 GC420d User Guide P1039494 001 44 Label Dispenser Option 4 Close the dispenser door 5 Press the Feed button to advance the media 6 During the print job the printer will peel off the backing and present a single label Take the label from the printer to allow the printer to print the next label Note If you did not activate the label taken sensor to detect the removal of the dispensed peeled label wi
15. label See Printing a Test Printer Configuration Label on page 15 to print this label See Appendix ZPL Configuration on page 91 for details on printer configuration and the ZPL commands that control the printer settings listed on the Printer Configuration Status Label To get an EPL style printer configuration status label send the printer the EPL U command See the EPL programmer s guide for more information on the various EPL U commands and interpreting the settings displayed on these labels Long Term Printer In activity or Storage Overtime the printhead may stick to the platen drive roller To prevent this always store the printer with a piece of media a label or paper between the printhead and platen roller Do not ship the printer with a roll of media installed or damage to the printer or media may result Thermal Printing AN LN P1039494 001 Caution The printhead becomes hot while printing To protect from damaging the printhead and risk of personal injury avoid touching the printhead Only use the cleaning pen to perform printhead maintenance Caution The discharge of electrostatic energy that accumulates on the surface of the human body or other surfaces can damage or destroy the printhead or electronic components used in this device You must observe static safe procedures when working with the printhead or the electronic components under the top cover GC420d User Guide 8 15 2011 29 Modes of Prin
16. moistened swab Clean from the center out Repeat this process until the all of the roller surface has been cleaned If there has been heavy adhesive build up or label jam repeat with a new swab to remove residual contaminates Adhesives and oils for example may be thinned by the initial cleaning but not completely removed GC420d User Guide 8 15 2011 61 Cleaning 5 Install the platen in the printer Discard the cleaning swabs after use do not reuse 6 Make sure the bearings and gear are on the shaft of the platen as shown 8 Rotate the tabs back and snap them into place Allow the printer to dry for one minute before closing the dispenser door media cover or loading labels Other Printer Maintenance There are no user level maintenance procedures beyond those detailed in this section See the Troubleshooting on page 67 for more information on diagnosing printer and print problems 8 15 2011 GC420d User Guide P1039494 001 62 Replacing the Printhead Replacing the Printhead If you need to replace the printhead read the procedure and review the removal and installation steps before actually replacing the printhead Caution Prepare your work area by protecting against static discharge Your work area must be static safe and include a properly grounded conductive cushioned mat to hold the printer and a conductive wrist strap for yourself printhead Caution Turn the printer power
17. the following printer communication interfaces USB parallel serial Wired and Wireless Ethernet and Bluetooth using a Bluetooth virtual printer port Install the Zebra Setup Utilities before applying power to the printer connected to the PC running a Zebra driver supported Windows operating system The Zebra Setup Utility will prompt you to apply the printer power Continue to follow the instructions to complete your printer installation Plug N Play PnP Printer Detection and Windows operating systems More recent Windows operating systems automatically detect the printer when it is connected via the USB interface Depending on the hardware configuration and the Windows version your printer may be Plug and Play PnP detected when connecting to the USB parallel or serial port interfaces The printer drivers do not support serial port PnP installation at this time The printer s PC interface configuration for the parallel port must support and have bidirectional communications for PnP operations The operating system automatically starts a Add new hardware wizard when connecting the printer for the first time to the PC If you have pre loaded the driver suite with the Zebra Setup Utility then the printer driver will automatically install Go to your Windows printer directory and right click and select Properties Click on the Print test page button to verify a successful installation The Windows operating syste
18. times These power cords must bear the Note Ensure the appropriate power cord with a three 3 prong plug and an relevant certification mark of the country in which the product is being used P1039494 001 GC420d User Guide 8 15 2011 11 Loading Roll Media Loading Roll Media When you load media you must place the roll onto the media hangers You must use the correct media for the type of printing you require Preparing Media Whether your roll media is inside or outside wound you load it into the printer the same way Remove the outside length of media During shipment handling or storage the roll may become dirty or dusty Removing the outside length of media avoids dragging adhesive or dirty media between the printhead and platen 8 15 2011 GC420d User Guide P1039494 001 12 Loading Roll Media Placing the Roll in the Media Compartment 1 Open the printer Remember that you need to pull the release latch levers toward the front of the printer 2 Open the media guides by turning the media guide adjustment knob toward the rear of the printer P1039494 001 GC420d User Guide 8 15 2011 13 Loading Roll Media 3 Pull the media roll holders open with your free hand and place the media roll on the roll holders and release Orient the media roll so that its printing surface will face up as it passes over the platen drive roller 8 15 2011 GC420d User Guide P1039494 001 14 Loading Roll Med
19. to the enterprise network can be accessed from the ZebraNet Bridge interface and configured remotely through an easy to use graphical user interface Printer Alerts Status Heartbeat Monitoring and event Notification ZebraNet M Bridge lets you configure multiple event alerts per device with different alerts directed to different people Receive alerts and notifications by e mail cell phone pager or through the ZebraNet M Bridge Events tab View alerts by printer or group and filter by date time severity or trigger e Configure and Copy Printer Profiles Copy and paste settings from one printer to another or broadcast them to an entire group ZebraNet Bridge allows you to copy printer settings printer resident files formats fonts and graphics and alerts with a click of the mouse Create printer profiles virtual golden printers with desired settings objects and alerts and clone or broadcast them as if they were real printers providing extensive savings in setup time Printer profiles are also an excellent way to back up a printer s configuration for crisis recovery 8 15 2011 GC420d User Guide P1039494 001 ZebraNet 10 100 Internal Wired Print Server Option Printer Network Configuration Status Label P1039494 001 GC420 printers with the ZebraNet 10 100 Internal Print Server option on board print an additional printer configuration status label for information needed to establish and trouble s
20. when exiting the printer then the media guides or roll holders may need further adjustment 8 15 2011 GC420d User Guide P1039494 001 36 Printing with Externally Mounted Roll Media Printing with Externally Mounted Roll Media The GC420 printer accommodates externally mounted roll media similar to the printer s support of fan fold media The printer requires the media roll and stand combination to have a low initial inertia to pull the media off the roll Zebra at this time does not offer an external media option for the GC420 printer Externally Mounted Roll Media Considerations The media ideally should enter the printer directly behind the printer through the fan fold media slot in the rear of the printer See Printing on Fan Fold Media on page 34 for media loading Lower the print speed to decrease the chance of motor stalls The roll typically has the highest inertia when trying to start the roll moving Larger media roll diameters require the printer to have more torque applied to get the roll moving The media should move smoothly and freely The media should not slip skip jerk bind and then move etc when mounted on your media stand The printer should not touch the media roll The printer should not slip or lift up off the operating surface P1039494 001 GC420d User Guide 8 15 2011 37 Fonts and Your Printer Fonts and Your Printer The GC420 printer supports your language and font requirem
21. with the Configuration Status label printout Refer to the one flash sequence of Feed Button Modes on page 78 to print this label GC420d User Guide 8 15 2011 73 Print Quality Problems A EPL label format was sent to but not recognized by the printer 8 15 2011 Is the printer in pause mode If so press the Feed button If the printer has label dispensing enabled the printer may be waiting for the label to be removed The liner web must be properly threaded through the label dispenser mechanism peeler to correctly operate in label dispense mode refer to Label Dispenser Option on page 42 If the status LED is on or flashing refer to What the Status Light is Telling You on page 68 Make sure the data cable is correctly installed A communications problem has occurred First make sure that the correct communications port USB on the computer is selected Refer to Connecting your Printer to a Computer on page 18 in the Getting Started section GC420d User Guide P1039494 001 74 Manual Calibration Manual Calibration Manual calibration 1s recommended whenever you are using pre printed media or if the printer will not correctly auto calibrate 1 2 Make sure media is loaded Turn on the printer power Press and hold the Feed button until the green status light flashes once then twice and then continuing until the flash groups reach the group of seven flashes Release the Feed button The printe
22. 1 49 ZebraNet 10 100 Internal Wired Print Server Option ZebraNet 10 100 Internal Wired Print Server Option The ZebraNet 10 100 Internal Print Server PS is an optional factory installed device that connects the network and your ZebraLink enabled printer The print server provides you with a browser interface for printer and print server settings If you use the ZebraNet Bridge Zebra network printer management software you can easily access the specialized features of a ZebraLink M enabled printer Printers with the 10 100 Internal PS provide the following features e Print server and printer setup using a browser e Remote monitoring and configuration capability of the 10 100 Internal PS using a browser e Alerts e The ability for you to send unsolicited printer status messages via E mail enabled devices ZebraNet Bridge ZebraNet Bridge is a software program that works with the 10 100 Internal PS and enhances the features of ZebraLink resident within ZPL based printers The features include the following ZebraNet M Bridge allows you to locate printers automatically ZebraNet Bridge searches on parameters such as IP address subnet printer model printer status and many other user defined characteristics e Remote Configuration Manage all your Zebra label printers throughout the enterprise without having to travel to remote sites or physically handle any printers Any Zebra printer connected
23. 11 23 199711 23 1997 Zebra GC420d Desktop Thermal Printer User Guide P1039494 001 GC420d User Guide 8 15 2011 2011 ZIH Corp GC420 GC420d ZBI ZBI 2 0 ZBI Developer Uni Ribbon ZebraDesigner ZebraNet EPL EPL2 ZPL ZPL II OpenACCESS and all product names and numbers are Zebra trademarks and Zebra the Zebra head graphic ZPL ZPL II Element Energy Equalizer circuit E3 Circuitand and ZebraNet are registered trademarks of ZIH Corp All rights reserved All other trademarks are the property of their respective owners This product may contain ZPL ZPL II amp and ZebraLink programs Element Energy Equalizer Circuit E3 and Monotype Imaging fonts Software OZIH corp All rights reserved worldwide All rights reserved worldwide Monotype Intellifont and UFST are trademarks of Monotype Imaging Inc registered in the United States Patent and Trademark Office and may be registered in certain jurisdictions CG Triumvirate is a trademark of Monotype Imaging Inc and may be registered in some jurisdictions TrueType is a trademark of Apple Computer Inc registered in the United States Patent and Trademark Office and may be registered in certancertain jurisdictions Proprietary Statement This manual contains proprietary information of Zebra Technologies Corporation and its subsidiaries Zebra Technologies It is intended solely for the information and use of parties operating and mai
24. 94 001 8 15 2011 Getting Started This section describes how to set up your printer for the first time and use the most common operating procedures for loading media Contents Attaching Power 1 0 0 cc hn 10 Loading Roll Media a 11 Printing a Test Printer Configuration Label cc eee 15 Pre install Windows Printer Drivers aaa 16 Connecting your Printer to a Computer aaa 18 After Your Printer is Connected aa 24 GC420d User Guide P1039494 001 10 Attaching Power Attaching Power Important Set up your printer so that you can handle the power cord easily if needed To make certain the printer cannot carry electrical current you must separate the power cord from the power supply receptacle or AC electrical outlet Caution Never operate the printer and power supply in an area where they can get wet Serious personal injury could result 1 Make sure the printer s power switch is in the off position down 2 Insert the AC power cord into the power supply 3 Plug the other end of the cord into an appropriate AC electrical outlet Note The active power light will go on 1f power is on at the AC outlet 4 Insert the power supply s power connector into the printer s power receptacle Plug Varies by Country Switch Active Power Light Power Receptacle IEC 60320 C IEC 60320 C5 connector are used at all
25. S E clientcare zebra com Internal Sales Department UK For printers parts media and ribbon please call your distributor or contact us Key T Telephone F Facsimile E E mail 8 15 11 The Americas Europe Middle East and Africa Zebra Technologies Europe Limited Dukes Meadow Millboard Road Bourne End Buckinghamshire SL8 5XF United Kingdom T 44 0 1628 556000 F 44 0 1628 556001 T 44 0 1628 556039 F 44 0 1628 556003 E Tseurope zebra com T 44 0 1772 693069 F 44 0 1772 693046 New requests ukrma zebra com Status updates repairupdate zebra com 44 0 1628 556000 44 0 1628 556001 Eurtraining zebra com 44 0 1628 556037 44 0 1628 556005 mseurope zebra com 44 0 1628 556032 44 0 1628 556001 cseurope zebra com GC420d User Guide Asia Pacific and India Zebra Technologies Asia Pacific Pte Ltd 120 Robinson Road 06 01 Parakou Building Singapore 068913 T 65 6858 0722 F 65 6885 0838 T 65 6858 0722 F 65 6885 0838 E China tschina zebra com All other areas tsasiapacific zebra com T 65 6858 0722 F 65 6885 0838 E China tschina zebra com All other areas tsasiapacific zebra com T 65 6858 0722 F 65 6885 0838 E China tschina zebra com All other areas tsasiapacific zebra com E China GCmarketin All other areas APACChannelmarketing zebra c om zebra com T 65
26. When using a USB cable not supplied with your printer verify that the cable or cable packaging bears the Certified USB mark see below to guarantee USB 2 0 compliance CERTIFIED USB 8 15 2011 GC420d User Guide P1039494 001 20 Connecting your Printer to a Computer Serial Communications The GK888 has a DCE serial communication port for hardware compatibility with legacy 888 printers The required cable must have a nine pin D type DB 9P male connector on one end which plugs into the mating DB 9S serial port located on the back of the printer The other end of this signal interface cable connects to a serial port on the host computer The cable is a Null Modem cross over signal connections cable For pinout information refer to Appendix A The serial port communication settings between the printer and host typically a PC must match for reliable communication The Bits per second or Baud rate and Flow control are the most common settings that get changed The host typically a Windows PC needs to have the data Flow control changed to match the printer s default communication method Hardware and is noted by the Host Handshake setting DTR Xon Xoff This combined hardware DTR and software Xon Xoff mode may need to change depending upon use with non Zebra application software or the serial cable variation in use Serial communications between the printer and the host computer can be set by e Autoba
27. a Cutter e Internal 10 100 Print Server and Ethernet Interface e Zebra ZBI 2 0 Zebra BASIC Interpreter programming language ZBI allows you to create custom printer operations that can automate processes use peripherals i e scanners scales keyboards Zebra KDU or KDU Plus etc all without being attached to a PC or network This user s guide provides all the information you need to operate your printer on a daily basis To create label formats refer to your programming guides or label design applications such as ZebraDesignerTM Your printer when connected to a host computer functions as a complete system for printing labels and tags Note Many printer settings may also be controlled by your printer s driver or label design software Refer to the driver or software documentation for more information GC420d User Guide 8 15 2011 What s in the Box What s in the Box Save the carton and all packing materials in case you need to ship or store the printer later After unpacking make sure you have all parts Follow the procedures for inspecting the printer to familiarize yourself with printer parts so you can follow the instructions in this book Printer o Documentation and Software Power Cord varies by locale or region Supply Cleaning Pen Unpack and Inspect the Printer When you receive the printer immediately unpack it and inspect for shipping damage e Save all packing materia
28. adjusts the media sensing to accommodate for minor changes in media parameters from label to label on a roll and from roll to roll of media The printer will automatically initiate a media length calibration if the expected media length or the label to label gap distance has exceeded the acceptable variation range when starting a print job or feeding media The automatic media sensing in the printer works the same for printer operations that use EPL and ZPL label formats and programming If the printer does not detect labels or black marks or notches with blackline sensing after feeding the media the default maximum label length distance of 39 inches 1 meter then the printer will switch to continuous receipt media mode The printer will keep these settings until changed by software programming or a manual calibration with different media Optionally the printer can be set to do a short media calibration after printer power up or when closing the printer with power on The printer will then feed several labels while calibrating The printer s media settings can be verified by printing a Printer Configuration label See the Printing a Test Printer Configuration Label on page 15 for more details The maximum distance that the automatic media type detection and sensing will check can be reduced by using the ZPL Maximum Label Length command ML It is recommended that this distance be set to no less than two times the longest label being prin
29. and See the EPL Line Mode Programmers Guide With Line Mode active ZPL and EPL EPL2 Page Mode programming will be processed as Line Mode programming and data e With the default ZPL and EPL EPL2 Page Mode active Line Mode programming will be processed as ZPL and or EPL programming and data Verify printer programming modes by printing out a printer configuration GC420d User Guide 8 15 2011 Printer Options This section covers the common printer options and accessories with brief descriptions and how to get you started using or configuring your printer option or accessory Contents Label Dispenser Option a nn aana aaa aaea 42 ZebraNet 10 100 Internal Wired Print Server Option 00000 e eee 49 Zebra KDU Printer Accessory ccc eee ee eens 51 KDU Plus Printer Accessory 0 52 ZBI 2 0 Zebra Basic Interpreter nananana naaa eee 53 8 15 2011 GC420d User Guide P1039494 001 42 Label Dispenser Option Label Dispenser Option The factory installed label dispenser option allows you to print a label with backing liner web being removed from the label as it prints ready for application When printing multiple labels removing the dispensed peeled label notifies the printer to print and dispense the next label To use dispenser mode correctly use your printer driver to activate the label taken sensor along with these typical label settings which include but
30. anguages and a wide variety of interface and feature options The GC420 printers feature e Automatic printer language detection and switching between ZPL and EPL programming and label formats e OpenAccess design for simplified media loading e Color coded operator controls and media guides e Zebra M Global Printing Solution supports Microsoft Windows keyboard encoding and ANSI Unicode UTF 8 and UTF 16 Unicode Transformation Formats XML ASCII 7 and 8 bit used by legacy programs and systems basic single and double byte font encoding Hexadecimal encoding and custom character maps DAT table creation font linking and character remapping e Improved printer performance faster print speeds and a 32 bit processor Acomplete suite of free software applications and drivers to configure printer settings design and print labels and receipts get printer status import graphics and fonts send programming commands update firmware and download files Clone printer settings and send graphics files fonts and firmware updates to one or more Zebra Ethernet and locally connected printers with ZebraNet Bridge Maintenance reporting enabled and customizable by the user The GC420 direct thermal printer models also include support for Line Mode printing to support EPL1 legacy programming based printing applications The GC420 printers offer these basic printer options e Label Dispense Peel Off e General Medi
31. at happens when you release the key after the start specific number of flashes and before the next flash sequence starts Flash Sequence kk kk kkk kk kkk kkkk kk kkk xx Lxx xx kkk xx ex kkkkkk kk kkk xx ex Kkkkkkk Kkkkkkkk Action Configuration Status Prints a detailed printer configuration status label The label can be used to verify printing assist printer to computer communication configuration maintenance troubleshooting and help us with customer care communications Standard Auto Media Calibration The printer detects and sets media type and media length and it adjusts the media sensors for optimal performance with the installed media equivalent ZPL command JC The printer will feed one to four labels while calibrating Note Users familiar with the Zebra EPL desktop printer use this Feed mode to replace power up AutoSensing calibration equivalent EPL command XA Serial Port Configuration Applies only to printers with serial interface ports To reset the serial port communication parameters except for Flow Control Press and release the Feed button while the LED rapidly flashes amber and green For autobaud synchronization Send the XA XZ command sequence to the printer while the LED rapidly flashes amber and green When the printer and host are synchronized the LED changes to solid green NOTE No labels will print during autobaud synchronizatio
32. ation with ZPL Programming The printer is designed to allow you to change printer settings dynamically for fast first label out printing Printer parameters that are persistent will be retained for following formats to use Those settings will remain in effect until they are changed by subsequent commands the printer is reset power is cycled or when you restore a parameter that has a factory default by using the Feed Button Mode four 4 flash routine The ZPL Configuration Update command JU saves and restores printer configurations to initialize or re initialize the printer with pre configured settings To keep settings after a power cycle or printer reset a JUS can be sent to the printer to save all current persistent settings The values are recalled with a JUR command to restore the last saved values to you printer ZPL stores all parameters at once with a single command discussed above The legacy EPL programming language supported by this printer changes and saves individual commands immediately Most configuration and settings are shared between ZPL and EPL For example changing the speed setting with EPL will also change the speed set for ZPL operations The changed EPL setting will persist even after a power cycle or reset issued by either printer language To assist the developer the printer has a listing of the operating parameters a Printer Configuration Label It can be accessed by using the printer s Feed butto
33. d User Guide P1039494 001 38 Fonts and Your Printer Identifying Fonts in Your Printer Fonts and memory are shared by the programming languages in the printer Fonts can be loaded in many memory areas in the GC420 printer ZPL programming can recognize EPL and ZPL fonts EPL programming can only recognize EPL fonts See the respective programmer guides for more information on fonts and printer memory ZPL Fonts To manage and download fonts for ZPL print operation use the Zebra Setup utility or ZebraNet Bridge To display all of the fonts loaded in your printer send the printer the ZPL WD command See the ZPL Programmers Guide for details e Bitmap fonts in the various printer memory areas are identified by the FNT file extension in ZPL Scalable fonts are identified with the TTF TTE or OTF file extensions in ZPL EPL does not support these fonts EPL Fonts To download fonts for EPL print operations use the Zebra Setup Utility or ZebraNet Bridge to send files to the printer To display Soft Fonts ext available to EPL send the printer the EPL command ET e All EPL fonts displayed are bitmap fonts They do not include the FNT file extension or the horizontal H or vertical V designators that are displayed with the ZPL command WD as described above in ZPL Fonts To remove non Asian EPL fonts with EPL programming use the EK command To remove EPL Asian fonts from the printer
34. de P1039494 001 52 KDU Plus Printer Accessory KDU Plus Printer Accessory P1039494 001 The KDU Plus ls a terminal device with memory for storing files and maintaining one or more remote printers The KDU Plus has a larger laptop style keyboard than the Zebra s original KDU design The KDU Plus is designed for the following functions e List label forms stored in printer e Retrieve label forms stored in printer e Input variable data e Printing labels File storage and transfer The KDU Plus is designed to work with ZPL and EPL printers by dynamically detecting and switching the printer s communications configuration DTE or DCE to match your Zebra printer By default the KDU Plus will start up forms mode This is compatible with the operation of Zebra s original KDU The KDU Plus is configurable to work in ZPL or terminal modes too The KDU Plus has file transfer and storage capabilities This is great for maintaining remote and stand alone printers with label forms logos and smaller font sets The KDU Plus has two configurable serial port and a PS 2 port to connect to other data input devices such as scanners weigh scales etc The 5 volts from the printer s serial pin 9 provides power for the KDU Plus and any additional input devices attached to the KDU Plus Maximum total current draw for the GC420 printer s serial and parallel port 750mA The KDU Plus s current without external input dev
35. e Configuration Receipt listing the printout has sensor settings and values are displayed to troubleshoot sensor and media operations These are typically used by Zebra Tech Support to diagnose printer problems P1039494 001 GC420d User Guide 8 15 2011 8 15 2011 95 ZPL Configuration Status to Command Cross reference The configuration settings listed here resume after the TAKE LABEL sensor value These listings contain printer features seldom changed from default or provide status information e g Firmware Version Table 3 ZPL Commands and Configuration Receipt Callout Cross Reference Command Listing Name Description MP MODES ENABLED Default CWF See MP Command CWFM for wireless printers with display MODES DISABLED Default nothing set JM RESOLUTION Default 832 8 mm FULL 203 dpi 1280 8 mm FULL 300 dpi FIRMWARE Lists ZPL Firmware Version XML SCHEMA 1 3 HARDWARE ID Lists Firmware Boot block Version CONFIGURATION CUSTOMIZED after first use 2104k R OPTION MEMORY 56532k B only displays this if installed ONBOARD FLASH 5632k E MU FORMAT CONVERT NONE JI JI ZBI DISABLED Requires key to enable ZBI VERSION 2 1 JH LAST CLEANED X XXX IN MA HEAD USAGE X XXX IN TOTAL USAGE X XXX IN RESET CNTR1 X XXX IN RESET CNTR1 X XXX IN SERIAL NUMBER XXXXXXXXXXX JH EARLY WARNING MAINT OFF z The printer has the ability to set a com
36. e activated Manual calibration selects the media sensing method for the labels being used refer to the MN command in the ZPL Programming Guide ZPL Label Formats Verify that the Label Top LT command is correctly set for your application consult the ZPL Programming Guide EPL Label Formats The correct media sensor may not be activated for label dispensing blackline or notch sensing or for Gap Web sensing Manual calibration selects the media sensing method for the labels being used refer to the O and Q commands in the EPL Programmer s Guide EPL Label Formats Verify that the Set Label Length Q command is correctly set for your application consult the EPL Programmer s Guide A ZPL label format was sent to but not recognized by the printer P1039494 001 Is the printer in pause mode If so press the Feed button If the status LED is on or flashing refer to What the Status Light is Telling You on page 68 Make sure the data cable is correctly installed A communications problem has occurred First make sure that the correct communications port on the computer is selected Refer to Connecting your Printer to a Computer on page 18 in the Getting Started section Verify the correct Format and Control Prefix on the printer match what you are using in your ZPL programmed label format The default Format COMMAND CHAR is Caret character and the Control CONTROL CHAR is a Tilde character Verify the characters
37. e la classe B est conforme la norme NMB 003 du Canada 8 15 2011 GC420d User Guide P1039494 001 FCC Compliance Statement This device complies with Part 15 rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for Class B Digital Devices pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the product manuals may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception the user is encouraged to do one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced RF service technician for help The user is cautioned that any changes or modifications
38. ebra Basic Interpreter aaa aaa ees 53 3 MAINGNANGO 6445442540855 e WOK raan OSS KAG 55 LE 56 Cleaning the Printhead aa 57 Media Path Considerations nanana aaa 58 Platen Cleaning and Replacement aa 60 Other Printer Maintenance aa 61 Replacing the Printhead 4 62 6 Troubleshooting sess s aderkada sad KGS EES dg d haa OER ABAKA DEAN KK 67 Status Light Descriptions aa 68 Status Light Error Resolutions ccc eee eee ne 69 Print Quality Problems 24 20 02 qu ob EE ces 64 409 8 BOLA oe THESE SE Ones Ss 329 EIS 71 Man al Calbranonl P T n 74 P1039494 001 GC420d User Guide 8 15 2011 Troubleshooting Tests aaa 15 Printing a Configuration Label 4 75 ROCD IOR nak ewan oe coe oS oho mee ene eee ee oes doen GANA 15 Resetting the Factory Default Values 4 76 Communications Diagnostics ee eee eae 76 Feed Button Modes 4 78 A Appendix Interface Wiring 81 Universal Serial Bus USB Interface a 82 Parallel Interna CE idees ae ES BEB DAGA be bu ERUEPSRPEEXSTOPESqeSS YE esu qeu 83 Ethernet Interace o6 005452ebeoHang Rond E AKA GAGANA HA SR dug u diui exe eows 84 Serial Port Interface aa 85 B Appendix Dimensions 87 External GK Printer Dimensions aa 88 C Appendix ZPL Configura
39. en roller to clean Clean the As needed roller thoroughly with 90 medical grade alcohol and a cleaning swab or lint free cloth See Platen Cleaning and Replacement on page 60 Clean it thoroughly with 90 medical grade alcohol and a fiber free cleaning swab Let alcohol dissipate and the printer dry completely Water dampened cloth Gently brush out printer components along the media path including the platen and printhead This build up can A Caution Adhesives and media material can over time transfer onto the printer accumulate dust and debris Failure to clean the printhead media path and platen roller could result in inadvertent loss of labels label jams and possible damage to the printer P1039494 001 Important Using too much alcohol can result in contamination of the electronic components requiring a much longer drying time before the printer will function properly GC420d User Guide 8 15 2011 57 Cleaning Cleaning the Printhead Always use a new cleaning pen on the printhead an old pen carries contaminants from its previous uses that may damage the printhead Caution The printhead becomes hot while printing To protect from damaging the AN printhead and risk of personal injury avoid touching the printhead Use only the cleaning pen to perform maintenance When you load new media you can also clean the printhead 1 Rub the cleaning pen across the dark area of the printhead C
40. ents with a variety of internal fonts on board font scaling international font sets and character code page support Unicode support and font download The GC420 printer s font capabilities are programming language dependent The EPL programming language provides for basic bitmapped fonts and international code pages The ZPL programming language provides advanced font mapping and scaling technology to support outline fonts TrueType or OpenType and Unicode character mapping as well as basic bitmapped fonts and character code pages ZPL and EPL programming guides describe and document the fonts code pages character access listing fonts and limitations for their respective printer programming languages See the printer programming guides for information on Text Fonts and Character support The GC420 printer includes utilities and application software that support font download into the printer for both printer programming languages Localizing the Printer with Code Pages 8 15 2011 The GC420 printer supports two sets of language region and character sets for permanent fonts loaded into the printer for each printer programming language ZPL and EPL The printer supports localization with common international character map code pages e For ZPL code page support including Unicode see the CI command in the ZPL programmer s guide For EPL code page support see the I command in the EPL programmer s guide GC420
41. er Figure 2 Configuration Label Printout PRINTER CONFIGURATION Zebra Technologies ZTC GC420d ZBR3573999 AA ee DARKNESS PRINT SPEED rr TERR OFF T PRINT MODE ae MEDIA TYPE ig Waa maa swaxaxze SENSOR TYPE eee cara SENSOR SELELI Lc a ace ws mese PRINT WIDTH MD ura RI ce S aa LABEL LENGTH e MAXIMUM LENGTH mrt USB COMM NE PROTOCOL Pisas CUTTER TYPE Cu Essa cea s CONTROL CHAR gt SEM aa eas ev ux as COMMAND CHAR DELIM CHAR PT ZPL MODE m MEDIA POWER UP ED HEAD CLOSE EP BACKFEED DOU 25 nae ee ee LABEL TOP LEFT POSITION ET PT HEADUMP AGA MEDIA E B E N KK X4 8 F 8 B EZ RF HA Sensor Settings used for Service e W A KN hh 5 R EH E 8 2 AMPF Purposes Li a a a a a a z m x a m m m E E n RARA FR ENR 8l D WL NABLEL MAP ee MODES DISABLED S3e B MM FULL RESOLUTION V71 17 10ZP10 lt FIRMWARE c M XML SCHEMA Ver cOO Ol ec ima aaa HARDWARE ID CUSTOMI CEU ack awk eas CONF IGURAT ION 2108 un wae ea eel R RAM OSC Kh baw ex x o ee E ONBOARD FLASH ONE ww FORMAT CONVERT DISBBLED si wd ao ZBI eae ZBI VERSION 46824 LAST CLEANED 45824 INicwnwwa aes HEAD USAGE 46626 ING da ai TOTAL USAGE 45024 ING mamana RESET CNTR1 45874 IN a su xen RESET CNTR2 eee ee ee ee SERIAL NUMBER MAINT OF Pena co ewes EARLY WARNING 2010 09 07 17 32 33 TIME STAMP FIRMWARE IN THIS PRINTER IS COPYRIGHTED
42. gmentation defrag Several factors can trigger a defrag operation Changing memory by deleting or adding objects to memory can cause a defrag The printer status light will begin flashing Red Amber and Green when a memory defrag is in process Do not turn off the printer s power while the status light is flashing This operation may take several minutes if memory use and file fragmentation are high ZPL Programming for Memory Management ZPL has various printer memory locations that are used to run the printer assemble the print image store formats forms graphics fonts and configuration settings e ZPL treats Formats Forms Fonts and Graphics like files and memory locations like disk drives in the DOS operating system environment Memory Object Naming Up to sixteen 16 alphanumeric characters followed by a three 3 alphanumeric character file extension i e 123456789ABCDEF TTF Legacy ZPL printers with V60 13 firmware and earlier can only use the 8 3 file name format verses today s 16 3 file name format Allows moving objects between memory locations and deleting objects e Supports DOS directory style file list reports as printouts or status to the host e Allows use of wild cards in file access P1039494 001 GC420d User Guide 8 15 2011 97 Printer Memory Management and Related Status Reports Table 4 Object Management and Status Report Commands Command Description A WD Print Directory Label Print
43. his test method uses friction heat to expose the media 2 Did a black mark appear on the media If a black mark Then the media is Does not appear on the media Thermal transfer A ribbon is required Your printer does not support this media Appears on the media Direct thermal No ribbon 1s required Replacing Supplies If labels run out while printing leave the printer power on while reloading data loss results if you turn off the printer After you re load media press the Feed button to restart Always use high quality approved labels and tags If adhesive backed labels are used that don t lay flat on the backing liner the exposed edges may stick to the label guides and rollers inside the printer causing the label to peel off from the liner and jam the printer Adjusting the Print Width Print width must be set when You are using the printer for the first time There is a change in media width Print width may be set by e The Windows printer driver or application software such as ZebraDesigner The five flash sequence in Feed Button Modes on page 78 Controlling printer operations with ZPL programming refer to the Print Width PW command consult your ZPL Programming Guide Controlling printer operations with EPL Page Mode programming refer to the Set Label Width q command consult your EPL Programmer 5 Guide 8 15 2011 GC420d User Guide P1039494 001 32 Adjusting the Print Quality
44. hoot network printing The following printout is printed with the ZPL WL command Network Configuration Zebra Technologies ZTC GC420d ZBR35739939 Internal Wired 5 IP PROTOCOL 172 029 001 043 IP ADDRESS 255 255 255 000 SUBNET MASK 172 029 001 001 DEFAULT GATEWAY 172 029 001 003 WINS SERVER IP TES 239372 4 os TIMEOUT CHECKING SUD saawe ee a TIMEQUT VALUE 8 0 6 ARP INTERVAL D100 a 4c en eee oe oe BASE RAW PORT 00074d3688ef MAC ADDRESS FIRMWARE IN THIS PRINTER IS COPYRIGHTED The regular printout of the configuration status label has some of the printer s network settings such as IP Address on the lower half of the printout The printer s IP address is needed to identify and configure the printer for operations on your network See the ZebraNet 10 100 Internal Print Server manual for more information GC420d User Guide 8 15 2011 51 Zebra KDU Printer Accessory Zebra KDU Printer Accessory The KDU keyboard display unit is a small terminal unit that interfaces with the printer for accessing EPL label forms stored in the printer The KDU 1s strictly a terminal and does not have the capability to store data or set up parameters The KDU is used for the following functions e List label forms stored in printer e Retrieve label forms stored in printer e Input variable data e Printing labels 8 15 2011 GC420d User Gui
45. ia 4 Pull the media so that it extends out of the front of the printer Thread the media under the media guides Verify the roll turns freely The roll must not sit in the bottom of the media compartment Verify that the media s printing surface is facing up 5 Close the media guides by turning the guide adjuster knob to the front They should just touch but not restrict the edges of the media 6 Close the printer Press down until the cover snaps closed P1039494 001 GC420d User Guide 8 15 2011 Printing a Test Printer Configuration Label Printing a Test Printer Configuration Label 8 15 2011 Before you connect the printer to your computer make sure that the printer is in proper working order You can do this by printing a configuration status label 1 Make sure the media is properly loaded and the top cover of the printer is closed Then turn the printer power on if you have not already done so If the printer initializes with the status light blinking green pause mode press the Feed button once to set the printer in Ready to print mode See the Troubleshooting on page 67 1f the printer s status light does not turn solid green Ready 2 Press the Feed button two to three times to allow the printer to calibrate the printer for the installed media The printer may feed several labels during this process 3 When the status light is solid green press and hold the Feed button u
46. iceable parts in the cutter unit Never remove the cutter cover bezel Never attempt to insert objects or fingers in to the cutter mechanism Important Tools cotton swabs solvents including alcohol etc all may damage or shorten the cutter s usable life or cause the cutter to jam 8 15 2011 GC420d User Guide P1039494 001 46 Cutter Option Loading Media with the Cutter Option 1 Open the printer Remember that you need to pull the release latch levers toward the front of the printer 2 Open the media guides by turning the media guide adjustment knob toward the rear of the printer P1039494 001 GC420d User Guide 8 15 2011 47 Cutter Option 3 Open the media roll holders Pull the media guides open with your free hand and place the media roll on the roll holders and release the guides Orient the media roll so that its printing surface will be up as it passes over the platen drive roller 4 Thread the media through the cutter s inside slot so that it extends out of the front of the printer Verify the roll turns freely The roll must not sit in the bottom of the media compartment Verify that media s printing surface is facing up 8 15 2011 GC420d User Guide P1039494 001 48 Cutter Option 5 Close the media guides by turning the guide adjuster knob to the front They should just touch but not restrict the edges of the media P1039494 001 GC420d User Guide 8 15 201
47. ices attached is 50mA N yj is JA Y NN Not real values 45mA 120mA 25mA 50mA lt Max Current Caution The KDU Plus s input ports AUX1 AUX2 and PS 2 style are not fused Exceeding the total current draw available could damage an input device KDU Plus or the printer GC420d User Guide 8 15 2011 ZBI 2 0 8 15 2011 53 ZBI 2 0 Zebra Basic Interpreter Zebra Basic Interpreter Customize and enhance your printer with ZBI 2 0 optional programming language ZBI 2 0 allows Zebra printers to run applications and take input from scales scanners and other peripherals all without a PC or network connection ZBI 2 0 works with the ZPL printer command language so that printers can understand non ZPL data streams and convert them into labels That means the Zebra printer can create bar codes and text from input received non ZPL label formats sensors keyboards and peripherals Printers can also be programmed to interact with PC based database applications to retrieve information to be used on printed labels ZBI 2 0 can be activated by ordering a ZBI 2 0 Key Kit or activated by purchasing a key from the ZBI 2 0 store at www zebrasoftware com Use the ZDownloader utility to apply the key Zdownloader 1s available on the users CD or at the Zebra Web site www zebra com An intuitive ZBI Developer programming utility is used to create test and distribute ZBI 2 0 applications is availab
48. indent on the top of the printhead bracket 4 Align the latch bracket up to the top case and ensure that the cable are not bent or pinched i zz JJ yn ae 5 Replace the four screws that hold the latch bracket to the top case and use a 1 Phillips driver to tighten them 6 Clean the print head as described under Cleaning the Printhead on page 57 7 Reload media Plug in the power cord turn on the printer and print a status report to ensure proper function See Printing a Test Printer Configuration Label on page 15 8 15 2011 GC420d User Guide P1039494 001 66 Replacing the Printhead Notes P1039494 001 GC420d User Guide 8 15 2011 8 15 2011 Troubleshooting This section provides information about printer error reporting that you might need for printer troubleshooting Assorted diagnostic tests are included Contents Status Light Descriptions 4 68 Status Light Error Resolutions 4 69 Print Quality Problems a 71 Manual Calibration 4 74 Troubleshooting Tests n nanana aaa 75 Resetting the Factory Default Values eee 76 Communications Diagnostics 0 0 0 0 e eee eens 76 Feed Button Modes 0 0 cc eee eee eee 78 GC420d User Guide P1039494 001 68 Status Light Descriptions Status Light Descriptions What the Status Light is Telling You For a Resolution LED Status and Color Refer
49. is section 8 15 2011 GC420d User Guide P1039494 001 76 Resetting the Factory Default Values Resetting the Factory Default Values Sometimes resetting the printer to the factory defaults may solve some problems Refer to the four flash sequence in Feed Button Modes on page 78 in this section Communications Diagnostics If there is a problem transferring data between the computer and printer try putting the printer in the communications diagnostics mode The printer will print the ASCII characters and their respective hexadecimal values a sample is shown below for any data received from the host computer To find out how There are multiple ways to enter hex data dump mode e The JD ZPL command The dump EPL command On power up with the Feed button pressed Refer to the power off mode procedure in Feed Button Modes on page 78 in this section The printer will print Now in DUMP see below and advance to the top of the next label Now in DUMP urs Press Feed to exit or send JE b i diu dase e Ta es K ex ree EN SALA Has XE P1039494 001 GC420d User Guide 8 15 2011 TI Communications Diagnostics The following example of a communications DUMP mode printed out The printout displays hexadecimal data 00h FFh 0 255 decimal with a unique character for each hexadecimal value a above the hexadecimal data e EEKE g DE Ser aerating ai 01 02 03 04 05 O6 07 BA OB OC 11 12 13 14 15 16 17 t ebe
50. le on the users CD or at the Zebra Web site www zebra com GC420d User Guide P1039494 001 54 ZBI 2 0 Zebra Basic Interpreter Notes P1039494 001 GC420d User Guide 8 15 2011 8 15 2011 Maintenance This section provides routine cleaning and maintenance procedures Contents CJGAMIING C L 56 Cleaning the Printhead 4 57 Media Path Considerations ccc ete eens 58 Platen Cleaning and Replacement 0 000 e eee eee eens 60 Other Printer Maintenance ee eee nes 61 Replacing the Printhead 0 0 0 eee eee eee 62 GC420d User Guide P1039494 001 22 Cleaning Cleaning When you clean the printer use one of the following supplies that best suits your needs r Order Cleaning Supplies Quantity Intended Purpose Cleaning pens 105950 035 Set of 12 Clean printhead Cleaning swabs 105909 057 Set of 25 Clean media path guides and sensors You can obtain cleaning supplies at www zipzebra com The cleaning process takes just a couple of minutes using the steps outlined below Printer Part Printhead Platen roller Peel bar Media path Exterior Interior Let the printhead to cool for a minute then usea After every roll of new cleaning pen to swab the dark line on the media printhead cleaning from the center to the outside edges of the printhead See Cleaning the Printhead on page 57 Remove the plat
51. lean from the middle to the outside This will move adhesive transferred from the edges of media to the printhead outside of media path 2 Wait one minute before closing the printer P7 m i mad QN e UA Paa H ee SS MT MA 8 15 2011 GC420d User Guide P1039494 001 58 Cleaning Media Path Considerations Use a cleaning swab to remove debris dust or crust that has built up on the holders guides and media path surfaces 1 Use the alcohol in the cleaning swab to soak the debris to break up the adhesive 2 Wipe the ridges to remove accumulated debris 3 Wipe the inside edges of both edge guides to remove any built up residue 4 Wait one minute before closing the printer Discard the cleaning swab after use Media Guides Pinch Roller P1039494 001 GC420d User Guide 8 15 2011 59 Cleaning Sensor Cleaning Dust can accumulate on the media sensors 1 Gently brush away dust if necessary use a dry swab to brush away dust If adhesives or other contaminates remain use an alcohol moistened swab to break it up 2 Use a dry swab to rem
52. ls e Check all exterior surfaces for damage Open the printer and inspect the media compartment for damage to components If you discover shipping damage upon inspection e Immediately notify the shipping company and file a damage report Zebra Technologies Corporation is not responsible for any damage to the printer incurred during shipment and will not cover the repair of this damage under its warranty policy e Keep all packaging material for shipping company inspection e Notify your authorized Zebra reseller 8 15 2011 GC420d User Guide P1039494 001 What s in the Box Your Printer Status Feed Fan Fold Media Entry Slot Light Button Release Latches _ o Power Switch gun DC Power Interface atcnes Receptacle Connectors Opening the printer To access the media compartment you must open the printer Pull the release latches towards you and lift the cover Check the media compartment for loose or damaged components human body or other surfaces can damage or destroy the printhead or electronic components used in this device You must observe static safe procedures when working with the printhead or the electronic components under the top cover Caution The discharge of electrostatic energy that accumulates on the surface of the P1039494 001 GC420d User Guide 8 15 2011 5 What s in the Box Printer Features Printhead ead Up Sensor Roll Holder and
53. m will detect and re link a previously installed printer if it is reconnected to the USB interface or if printer power is turned on after the PC has finished its restart of the operating system Ignore the new device detected warnings and close the Task bar prompts Wait several seconds for the operating system to match the printer to the driver software The warnings will quit and the printer now should be ready to begin printing P1039494 001 GC420d User Guide 8 15 2011 17 Pre install Windows Printer Drivers Universal Serial Bus USB Device Communications The printer is a terminal device not a host or hub when using a USB interface You can refer to the USB Specification for details regarding this interface Scanners scales or other data input terminal devices must use the serial port not the USB port to send data to the printer Serial Port and Windows operating systems The Windows operating system default settings for the serial port communication closely match the printer s defaults settings with one exception the data Flow Control settings The Windows default data Flow Control setting is NONE The printer requires data Flow Control set to Hardware Note The printer does not support Windows Serial Port Plug and Play PnP device detection at this time Ethernet This printer option has a variety of methods and utilities to assist with printer connection and configuration of networked Zebra printers o
54. mand or a group of commands once for all receipts or labels that follow Those settings will remain in effect until they are changed by subsequent commands the printer is reset or you restore factory defaults GC420d User Guide P1039494 001 96 Printer Memory Management and Related Status Reports Printer Memory Management and Related Status Reports To help you manage printer resources the printer supports a variety format commands to manage memory transfer objects between memory areas import and export object naming and provide various printer operating status reports They are very similar to the old DOS commands like DIR directory listing and DEL delete file The most common reports are also part of the Zebra Setup Utility and ZebraDesigner Windows driver Figure 3 Memory Management Format Structure XA Start Format Command A Single Format Command is recommended for purposes of reuse AXZ End Format Command It is recommended that a single command be processed within a this type of format form A single command is easily reused as a maintenance and development tool Many of the commands that transfer objects manage and report on memory are control commands They do not need the be within a format form They will be process immediately upon receipt by the printer whether in a format form or not gt Note To maximize available printer memory the printer includes an automatic memory defra
55. n Factory Defaults Resets the printer to the factory default settings equivalent to ZPL command JUN See Appendix ZPL Configuration on page 91 for a description of the primary configuration settings and their associated ZPL commands Some configuration settings are not returned to their initial out of box settings Other settings are exclusively set viewed and controlled by programming are also reset The printer then performs a standard media calibration followed by a memory defragmentation routine Once a network printer has entered the Factory Default mode the status light will turn amber for three 3 seconds During that time you may do two things Do nothing and the printer will reset the factory defaults automatically as described above OR press and hold the feed button to enter a factory default reset modes for printers with a network Ethernet Wi Fi or Bluetooth printer option equivalent ZPL command JUF Releasing the button after the first flash resets the network factory options only equivalent ZPL command JUN Releasing the button after the second flash sequence two flashes will reset the printer defaults only Releasing the button after the third flash sequence three flashes will reset both printer and network settings equivalent ZPL commands JUN and JUF Print Width Adjustment Prints a succession of boxes starting at the minimum print width and ending in the printer s maximum print width in 4mm incremen
56. n a LAN local area network or WAN wide area network The Zebra Setup Utility configuration wizards support creating a connection to the printer on a shared network with Windows based systems by using the printer s IP address The printer includes internal Web pages to provide easy access to printer and network configuration The web pages are accessible via the printers IP address using any web browser The free version of ZebraNet Bridge software allows you to centrally deploy manage and monitor your Zebra printers with automatic Zebra printer discovery up to 3 printers from a single PC screen anywhere on your global network ZebraNet Bridge Enterprise 1s available for purchase to manage larger numbers of Zebra printers 8 15 2011 GC420d User Guide P1039494 001 18 Connecting your Printer to a Computer Connecting your Printer to a Computer A The printer support a variety of interface options and configurations These include Universal Serial Bus USB interface RS232 Serial Parallel IEEE 1284 4 and 10 100 Ethernet USB Serial and Parallel e Optional USB and Ethernet Wired The Zebra Setup Utility is designed to assist you with installing these interfaces The cabling and unique parameters for each of these physical printer communication interfaces 1s discussed in the following pages to assist you with making configuration setup choices prior to and immediately following applying power The Zebra Set
57. n also be refined to match the media type loaded into the printer Use the ZPL Media Tracking command MN to set the media type Sometimes the printer can detect preprinted media as the gap between labels or the liner backing with print as a black marks If the MN parameter for continuous media is set then the print does not preform the automatic calibration The MN command also includes an automatic calibration parameter MNA to return the printer to its default setting to automatically detect all media types GC420d User Guide P1039494 001 34 Printing on Fan Fold Media Printing on Fan Fold Media Printing on fan fold media requires you to adjust the media roll holders stop position 1 Open the top cover 2 With a sample of your media adjust the media roll holders to the width of the media The hangers should just touch but not restrict the edges of the media Tighten the screw using a small Phillips driver 1 P1039494 001 GC420d User Guide 8 15 2011 35 Printing on Fan Fold Media 3 With a sample of your media adjust the guides to the width of the media The guides should just touch but not restrict the edges of the media 4 Run the media between the media guide and roll holders 5 Close the top cover After printing or feeding several labels If the media does not track down the center moves from side to side or the sides of the media liner tag paper etc are frayed or damaged
58. n and the Printing a Test Printer Configuration Label on page 15 The Zebra Setup Utility and the ZebraDesigner Windows driver also print this label and other printer status labels to help you manage your printer ZPL Printer Configuration Format P1039494 001 Managing more than one printer can be done creating a printer configuration programming file to send to one or more printers or ZebraNet Bridge can be used to clone a printer s setup Figure 1 below shows the basic structure of a ZPL programming configuration file See the ZPL programmer s guide and the ZPL Configuration Status to Command Cross reference on page 93 to create a programming file The Zebra Setup Utility ZSU can be used to send programming files to the printer Windows Notepad text editor can be used to create programing files Figure 1 Configuration Parameter Format Structure XA Start Format Command Format Commands are order sensitive a General Print and command settings b Media handling and behaviors C Media print size JUS command to save AXZ End Format Command GC420d User Guide 8 15 2011 93 ZPL Configuration Status to Command Cross reference ZPL Configuration Status to Command Cross reference The Printer Configuration Label shown below provides a listing of a majority of the configurations settings that can be set by ZPL command Some printer options and variations will only be displayed if they are present in the print
59. non Windows operation systems copying a basic ASCII text file with a single command WC to the printer will print a configuration status label Test Printing with Zebra Setup Utility 1 Open the Zebra Setup Utility 2 Click on the newly installed printer s icon to select the printer and activate the printer configuration buttons below it in the window 3 Click the Open Printer Tools button 4 In the Print tab window click on the Print configuration label line and click on the Send button The printer should print a configuration status label Test Printing with Windows Printer and Faxes menu 1 Click on the Windows Start menu button to access the Printers and Faxes menu or Control Panel to access the Printers and Faxes menu Open the menu 2 Select the newly installed printer s icon to select the printer and right click the mouse to access the printer Properties menu 3 From the printer s General tab window click on the Print Test Page button The printer should print a Windows test print page Test Print on a Ethernet printer connected to a network LAN or WAN with a MS DOS Command Prompt or Run from the Windows XP Start menu 1 Create a text file with the following ASCII three characters WC 2 Save the file as TEST ZPL an arbitrary file name and extension name 3 Read the IP address off the printer s Configuration Statu
60. not expressly approved by Zebra Technologies could void the user s authority to operate the equipment To ensure compliance this printer must be used with fully shielded communication cables zz FI SBS AAW IRA F 2 NANA NG AS BAO sy ow E ele AHESE T AG Environmental Management Do not dispose of this product in unsorted municipal waste This product is recyclable and should be recycled according to your local standards For more information please see our website at Web address www zebra com environment P1039494 001 GC420d User Guide 8 15 2011 8 15 11 About This Document This section provides you with contact information document structure and organization and additional reference documents Contents Who Should Use This Document aaa vi How This Document Is Organized ee ees Vi CONG ak cree tae ee ADA LAMAN MAD BILANGAN MAD DORA E Gaba in Bae oes an vii Document Conventions lle RR rre viii GC420d User Guide P1039494 001 Rev 1 vi Who Should Use This Document Who Should Use This Document This User Guide is intended for use by any person who needs to operate or to troubleshoot problems with the printer How This Document Is Organized The User Guide is set up as follows Section Introduction on page 1 Getting Started on page 9 Print Operations on page 27 Printer Options on page 41 Maintenance on page 55 Troubleshooting on page 67 A
61. ntaining the equipment described herein Such proprietary information may not be used reproduced or disclosed to any other parties for any other purpose without the express written permission of Zebra Technologies Product Improvements Continuous improvement of products is a policy of Zebra Technologies All specifications and designs are subject to change without notice Liability Disclaimer Zebra Technologies takes steps to ensure that its published Engineering specifications and manuals are correct however errors do occur Zebra Technologies reserves the right to correct any such errors and disclaims liability resulting therefrom Limitation of Liability In no event shall Zebra Technologies or anyone else involved in the creation production or delivery of the accompanying product including hardware and software be liable for any damages whatsoever including without limitation consequential damages including loss of business profits business interruption or loss of business information arising out of the use of the results of use of or inability to use such product even if Zebra Technologies has been advised of the possibility of such damages Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you Canadian DOC Compliance Statement This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique d
62. nthead needs to cool down e If this error continues turn the printer power off for five minutes or more and then turn on If the amber light persists then the printer requires service 4 The printer is receiving data e As soon as all of the data has been received the status LED will turn green and the printer will automatically resume operation 5 The media is out e Follow the instructions for Loading Roll Media on page 11 in the Getting Started section and then press the Feed button to resume printing The printhead is open Close the top cover and then press the Feed button to resume printing 8 15 2011 GC420d User Guide P1039494 001 70 Status Light Error Resolutions 6 The printer is paused Press the Feed button to resume printing 7 The printhead is over temperature e Printing will stop until the printhead cools to an acceptable printing temperature When it does the printer will automatically resume operation 8 FLASH memory is not programmed e Return the printer to an authorized reseller 9 The printhead or motor has had a critical failure e Return the printer to an authorized reseller 10 The printer is defragmenting memory Caution Do NOT turn off the printer power during defragmentation Doing so can damage the printer e Defragmentation is a normal operation of the printer necessary to manage the memory space for optimal use The printer will defragment its memory bo
63. ntil the status light flashes once 4 Release the Feed button A configuration label will print If you cannot get this label to print refer to Getting Started on page 9 PRINTER CONFIGURATION zebra Technologies ZTC GC420d ZBR3573999 n DARKNESS 4 IPS iit eae a ewe PRINT SPEED TOUD wa eons We wows TEAR OFF TEAR OFF PRINT MODE GRP NOTCH MEDIA TYPE WEB aa GA II SENSOR TYPE AUTO SENSOR SELECT PRINT WIDTH 12 OO eee i on LABEL LENGTH 39 0IN 989MM MAXIMUM LENGTH CONNECTED aaa nn USB COMM NONG ee PROTOCOL LINER TAG FULL CUTTER TYPE ND Pel enn ed ee eee CONTROL CHAR COMMAND CHAR Sar a P APA DELIM CHAR Pig SA POPE EROR ZPL MODE NO MOTION MEDIA POWER UP FEED eee HEAD CLOSE UL eee eee ne BACKFEED OOQ qi AA LABEL TOP errr er ee re LEFT POSITION mo m W B amp 3 M 9 9 a M o ee n Y gt ss ees ese s eee s 5 see eee m ee see eae ww m n aa amp mm mna na nman 85 5 M a m uw m eee M R 5 P MED S IT MEDIA GAIN p ee eee CONT MEDIA S MEDIA GAIN Tee ABEL AKE L IO MODES ENABLED TITIO MODES DISABLED 832 87MM FULL RESOLUT ION V71 17 10Z2P10 lt FIRMWARE T XML SCHEMA Y27 00 01 HARDWARE ID ae we dom cr
64. nts important points of the main text Example Provides an example often a scenario to better clarify a section of text P1039494 001 Rev 1 GC420d User Guide 8 15 11 Contents e About This Document V Who Should Use This Document naaa ee vi How This Document Is Organized 4 Vi Sure dq CC mnm vil Document Conventions 0 0 aa Vill SCONES EP TAPA CAP NN a a dA Ix Mog libigels l c i 12 3 P er ee ee ee ee ee 1 GC420d Thermal Printers aaa 2 Whats Wie BOK 2506646455 ANG Aa GaGa pound be bed ae ae Ge bare eee 3 Unpack and Inspect the Printer aaa 3 XOUF DIDIT AA 4 Printer Features a 5 Operator Controls 4 6 2 Getting Started ee 9 Attaching Power 0 00 ee eee eee nas 10 Loading Roll Media 1 0 0 rar 11 Preparing MCCA 62662 ama aiaia LG a Bee S UR DROP AG Eee eee Cee See Some es 11 Placing the Roll in the Media Compartment aa 12 Printing a Test Printer Configuration Label 0 0 0 ee 15 Pre install Windows Printer Drivers 0 0 aa 16 Connecting your Printer to a Computer aaa 18 Interface Cable Requirements eee ee ee eee 18 After Your Printer is Connected 0 0 00 cc eee eee ees 24 3 Print Operations
65. o CON DU BK WO N Centronics CON DU KB WO N Pin No DB 25 to Centronics Cable GC420d User Guide PRINTER STROBE DATA O DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 ACK BUSY PAPER ERR SELECT AUTOFD n c SIG GND CHAS GND 5V SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND SIG GND n c ERROR SIG GND n c n c SELECTIN P1039494 001 83 84 Ethernet Interface Ethernet Interface This interface requires a UTP RJ45 Ethernet cable rated CAT 5 or better The table below provides the cable s pinout assignments Signal Txt NOGO A P1039494 001 Co N O 0 SASA GC420d User Guide 8 15 2011 85 Serial Port Interface Serial Port Interface Pin Description OOS 5 V 0 75 A fused TXD transmit data output from the printer RXD receive data input to the printer DSR data set ready input to the printer Chassis ground DTR data terminal ready output from the printer controls when the host may send data CTS clear to send Not used by the printer RTS request to send output from the printer always in the ACTIVE condition when the printer is turned on Not used The maximum current available through the serial and or parallel port is not to exceed a total of 0 75 Amps When XON XOFF handshaking is selected data flow is controlled by the ASCII control codes
66. o ee RA nn E ONBOARD FLASH FORMAT CONVERT ZBI ere rT Peer ee ZBI VERSION es 4 824 IN LAST CLEANED 4 824 IN HEAD USAGE 4 824 IN TOTAL USAGE 4 824 INL wn RESET CNTR1 4 624 INL nun RESET CNTR2 1439302 8 ROC IRR US UR E RR SERIAL NUMBER I EARLY ma i GC420d User Guide P1039494 001 15 16 Pre install Windows Printer Drivers Pre install Windows Printer Drivers Zebra is changing the way you install and use your printer with your Windows based PC systems We recommend that at minimum the ZebraDesigner Windows driver be pre installed to take advantage of the advancements in ease of use and simplicity of the Windows operating systems since the release of Windows XP SP2 Zebra provides the Zebra Setup Utilities ZSU a suite of Zebra printer drivers utilities and communications and installation tools for use with most Windows PC operating systems Zebra Setup Utilities and Zebra Windows printer drivers are available on the user s CD and the Zebra web site www zebra com for latest versions ZebraDesigner Driver and Zebra Setup Utilities includes the driver Supports Windows 7 Windows Vista Windows XP Windows 2000 Windows Server 2008 and Windows Server 2003 operating systems The driver supports 32 bit and 64 bit Windows operating systems and is Microsoft Certified Zebra Setup Utilities and the ZebraDesigner driver support
67. o the Printer on page 40 for more information on using the Firmware and File Download utility available for use with this printer Firmware updates for your printer if available are posted on the Zebra on our web site at www zebra com Normal Operations Mode The printer continues into a normal printer initialization Amber Releasing the Feed button here will allow the printer to start normally without firmware download or operating in communications diagnostics mode Communications Diagnostic Dump Mode Release the Feed button immediately after the printer status light turns green The printer will print Now in DUMP at the top of the label and then advance to the next label After printing the first label the printer will automatically enter into diagnostic mode in which the printer prints out a literal Green representation of all data subsequently received To exit the diagnostic mode and resume printing turn off and then turn on the printer An alternate method for exiting the diagnostic mode is to press the Feed button as many times as it takes to clear the printer s command buffer and print Out of DUMP on the label P1039494 001 GC420d User Guide 8 15 2011 8 15 2011 79 Feed Button Modes Power On Modes With the printer power on and top cover closed press and hold the Feed button for several seconds The green status LED will flash a number of times in sequence The explanation at the right Action shows wh
68. oarv H 4 amp 30 31 32 33 34 35 36 37 36 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 LL L ta bkgUtgszliz ioo oD E EEuitltI ca CE D8 DS DA DB DC DD DE DF EO E1 E2 E3 E4 ES E6 E7 E8 ES ER EB EC ED EE EF FS FA FB FC FD FE FF n e T pa n N n ly n A Tl ut TI P ele n bs T o The blank lines between the lines of data are where serial port and Bluetooth data handling errors get logged The errors are e F Frame Error P Parity Error N Noise Error e O Data Overrun Error To exit the diagnostic mode and resume printing turn off and then turn on the printer An alternate method for exiting the diagnostic mode is to press the Feed button as many times as it takes to clear the printer s command buffer and print Out of DUMP on the label PESE l NAAN CR a ATE 3 s F 5 DAT TATA ME ES ME BI Ian gs X Out of DUMP 8 15 2011 GC420d User Guide P1039494 001 78 Feed Button Modes Feed Button Modes Power Off Modes With the printer power off press and hold the Feed button while you turn on the power Flash Sequence Action Firmware Download Mode The printer starts rapidly flashing red to denote entry into the Firmware Download mode Releasing the Feed button here will start initializing the printer for download The printer is ready to start downloading firmware when the status Amber Red light begins to slowly flash between red and green Flashing See Sending Files t
69. off and unplug the power cord before replacing the Before following the steps in this procedure open the printer by pulling the release latches forward then lifting the top cover Printhead Removal 1 Use a 1 Phillips driver to loosen the four screws that hold the latch frame to the top case oT B CT Va gt i ES r3 s Namana N e P1039494 001 GC420d User Guide 8 15 2011 63 Replacing the Printhead 2 Grasp the print head spring and pull it to the left then slide it free of the latch frame 3 Gently pull the wire bundles from the printhead LA VA Zilli Y y din 0 NEA Ko V A LN 4 Use a 1 Phillips driver to loosen the two screws and washers and release the print head from the latch frame and bracket 8 15 2011 GC420d User Guide P1039494 001 64 Replacing the Printhead Printhead Installation 1 Route the print head cables under the latch shaft and plug the printhead cables into the receptacles on the printhead 2 Hold the printhead against the bracket while replacing the screws and washers Attach the ground wire using the right screw and washer Use a 1 Phillips driver to tighten the screws P1039494 001 GC420d User Guide 8 15 2011 65 Replacing the Printhead 3 Slip the left end of the printhead spring into the left side of the latch bracket then slide the right end into the other side The angle of the V fits into the
70. oth files are loaded in the printer then only the AUTOEXEC ZPL will run The EPL AUTOFR form runs until it is disabled Both files must be deleted from the printer followed by a reset or a power cycle to completely remove the files Note The GC420 EPL AUTOFR command can only be disabled with NULL character 00 hex or ASCII 0 The printer will ignore the other character that normally disables the AUTOFFR form operation in most other EPL printers the XOFF character 13 hex or ASCII 19 The printer can source up to 750mA through a 5 volt line shared between the parallel and serial ports See Appendix A for more information on the printer s serial port interface GC420d User Guide P1039494 001 39 40 Sending Files to the Printer Sending Files to the Printer Graphics fonts and programming files can be sent to the printer from the Microsoft Windows operating systems by using the Zebra Setup Utilities and driver ZebraNet Bridge or Zebra ZDownloader found on the user s CD or at www zebra com These methods are common for both programming languages and the GC420 printers Print Meter The GC420 printer has the capability to report printhead maintenance alerts The printer can provide cleaning and early warning of end of calculated printhead life alerts If the RTC Real Time Clock is installed in the printer the printhead life and history reporting will also include the date By default print metering alerts are disabled
71. our printer cannot be copied cloned or restored to your printer by reloading or updating firmware If these license restricted ZPL fonts are removed by an explicit ZPL object delete command they must be repurchased and reinstalled via a font activation and installation utility EPL fonts do not have this restriction 8 15 2011 GC420d User Guide P1039494 001 98 Printer Memory Management and Related Status Reports Notes P1039494 001 GC420d User Guide 8 15 2011
72. ove any residue that may be left from the first cleaning 3 Repeat steps 1 and 2 as required until all residue and streaks are removed from the sensor Gap Sensor Black Line Sensor Label Taken Sensor 8 15 2011 GC420d User Guide P1039494 001 60 Cleaning Platen Cleaning and Replacement P1039494 001 The standard platen drive roller normally does not require cleaning Paper and liner dust can accumulate without effecting print operations Contaminates on the platen roller can damage the printhead or cause the media to slip or stick when printing Adhesive dirt general dust oils and other contaminates should be cleaned immediately off the platen Clean the platen and media path whenever the printer has significantly poorer performance print quality or media handling The platen is the print surface and drive roller for your media If sticking or jamming continues even after cleaning you must replace the platen The platen can be cleaned with a fiber free swab such as a Texpad swab or a lint free clean damp cloth very lightly moistened with medical grade alcohol 90 pure or better 1 Open the cover and dispenser door Remove media from platen area 2 Using a pointed stylus such as tweezers small slot head screwdriver or razor knife unhook the tabs on the right and left sides Then rotate them forward NEA TAS ST NN CAH LA D H 4 Clean the platen with the alcohol
73. p www zebra com howtobuy Your printer can use various types of media e Standard media Most standard non continuous media uses an adhesive backing that sticks individual labels or a continuous length of labels to a liner Continuous roll media Most continuous roll media is direct thermal media similar to FAX paper and is used for receipt or ticket style printing e Tag stock Tags are usually made from a heavy paper up to 0 00751n 0 19mm thick Tag stock does not have adhesive or a liner and it is typically perforated between tags For more information on basic media types see Table 1 The printer typically uses roll media but you can use fan fold or other continuous media too Use the correct media for the type of printing you require You must use direct thermal media GC420d User Guide P1039494 001 30 Print Media Types Table 1 Types of Media Roll and Fanfold Media Media Type How It Looks Non Continuous Roll Media lt gt Non C ontinuous Fanfold Media Continuous Roll Media P1039494 001 Description Roll media is wound on a core that can be 0 5 to 1 5 in 12 7 to 38 1 mm in diameter Labels have adhesive backing that sticks them to a liner and they are separated by gaps holes notches or black marks Tags are separated by perforations Individual labels are separated by one or more of the following methods Web media separates labels by gaps holes or notches
74. ppendix Interface Wiring on page 81 Appendix Dimensions on page 87 Appendix ZPL Configuration on page 91 P1039494 001 Rev 1 Description This section describes what you get in your shipping box and provides an overview of printer features This section also has procedures that describe how to open and close the printer and report any problems This section describes how to set up your printer for the first time and use the most common operating procedures for loading media This section provides media and print handling font and language support and the set up of less common printer configurations This section covers the common printer options and accessories with brief descriptions and how to get you started using or configuring your printer option or accessory This section provides routine cleaning and maintenance procedures This section provides information about printer error reporting that you might need for printer troubleshooting Assorted diagnostic tests are included This section provides additional interface information and wiring diagrams to assist with printer to host system integration typically a PC This section provides external printer dimensions for the standard printer and printer with options This section briefly covers printer configuration and includes a cross reference to ZPL printer configuration commands GC420d User Guide 8 15 11 Contacts vii Contacts Technical S
75. r will set the media sensor for the label backing being used After it is done making this adjustment the roll will automatically feed until a label is positioned at the printhead A profile of the media sensor settings similar to the example below will print Upon completion the printer will save the new settings in memory and the printer is ready for normal operation Press the Feed button One entire blank label will feed If this does not happen try defaulting refer to the four flash sequence in Feed Button Modes later in this chapter and recalibrating the printer Note Performing a manual calibration disables the auto calibration function To return to a auto calibration default the printer refer to the four flash sequence in Feed Button Modes on page 78 in this section P1039494 001 GC420d User Guide 8 15 2011 Troubleshooting Tests Printing a Configuration Label 75 Troubleshooting Tests To print out a listing of the printer s current configuration refer to the one flash sequence in Feed Button Modes on page 78 in this section See Appendix ZPL Configuration on page 91 to interpret the label Zebra Technologies ZTC GC420d ZBR3573999 IUD nA AK WANG DARKNESS amp IPO acana KG eee PRINT SPEED ON TEAR OFF TEAR OFF PRINT MODE GAP NOTCH MEDIA TYPE WEB Lux AA Rn SENSOR TYPE AUT Gs cuu ed Ro n SENSOR SELECT B3B orsus xxawS racha PINE MITO o c m
76. rallel Cable GC420d User Guide 8 15 2011 23 Connecting your Printer to a Computer Ethernet The printer requires UTP RJ45 Ethernet cable rated CAT 5 or better For more information on configuring your printer to run on a compatible Ethernet based network see the ZebraNet 10 100 Internal Print Server manual The printer must be configured to run on your LAN local area network or WAN wide area network The print server on board your printer can be accessed through the printer s Web pages de Ethernet Cable RJ45 Connector Ethernet Status Activity Indicators LED Status Description Both OFF No Ethernet link detected Green 100 Mbps link detected Green with the Amber 100 Mbps link and Ethernet activity detected flickering on and off Amber 10 Mbps link detected Amber with the Green 10 Mbps link and Ethernet activity detected flickering on and off Green LED Amber LED 8 15 2011 GC420d User Guide P1039494 001 aa After Your Printer is Connected After Your Printer is Connected Now that you have basic communication to your printer you may want to test printer communications and then install other printer related applications drivers or utilities Testing Communications by Printing Verifying the print system s operation is a relatively simple process For Windows operating systems the Zebra Setup Utility or the Windows Printers and Faxes Control Panel to access and print a test label For
77. s Label s Network Status printout On a system that is connected to the same LAN or WAN as the printer type the following in the Web browser window s address bar and enter fpt IP address for IP address 123 45 67 01 it would be ftp 123 45 67 01 4 Type the word put followed by the file name and enter For this test print file it would be put TEST ZPL The printer should print a new Print Configuration Status label P1039494 001 GC420d User Guide 8 15 2011 25 After Your Printer is Connected Test Print with a Copied ZPL Command File for Non Windows Operating Systems 1 Create a text file with the following ASCII three characters WC 2 Save the file as TEST ZPL an arbitrary file name and extension name 3 Copy the file to the printer For DOS a file sent to a printer connected to the system s parallel port would be as simple as COPY TEST ZPL LPT1 Other interface connection types and operating systems will have different command strings See your operating system documentation for detailed instructions to copy to the appropriate printer interface for this test 8 15 2011 GC420d User Guide P1039494 001 After Your Printer is Connected mad Notes P1039494 001 GC420d User Guide 8 15 2011 Print Operations This section provides media and print handling font and language support and the setup of less common printer configurations Contents Determining Printer Configuration
78. s a list of objects and resident bar codes and fonts in all addressable memory locations WC Print Configuration Prints a configuration Status Receipt Label Label Same as Feed Button mode one flash routine ID Object Delete Deletes objects from printer memory Transfer Object Used to copy an object or group of objects from one memory area to another CM Change Memory Letter Reassigns a letter designation to a printer Designation memory area JB Initialize Flash memory Similar to formatting a disk erases all objects from the specified memory locations B or E JB Reset Optional Memory Similar to formatting a disk erases all objects from the B memory factory option gt H O DY Download Objects Downloads and installs wide variety of printer usable programming objects fonts OpenType and TrueType graphics and other object data types Recommendation Use ZebraNet Bridge for downloading graphics and fonts in the printer DG Download Graphic Downloads an ASCII Hex representation of a graphic image This is used by ZebraDesigner label creation application for graphics FL Font Linking Appends secondary TrueType font or fonts to the primary TrueType font to add glyphs characters LF List Font Links Prints a list of the linked fonts CW Font Identifier Assigns a single alphanumeric character as an alias to a font stored in memory Important Some factory installed ZPL fonts in y
79. ted If the largest label being printed was a 4 by 6 inch label then the maximum label media length detection distance can be reduced from the default distance of 39 inches down to 12 inches If the printer has difficulty automatically detecting the media type and auto calibrating see Manual Calibration on page 74 to perform an extensive calibration It includes a printed graph of sensor operation for your media This method disables the printer s automatic media sensing capability until the printer s default parameters are reset to the factory defaults with the four flash Feed button mode See the Feed Button Modes on page 78 for more details The automatic media calibration can be modified turned on or turned off to meet your needs Sometimes print job conditions require that the printer use all the media on a roll The two automatic media conditions power up with media loaded and closing the printer with power on can be controlled individually with the ZPL Media Feed command MF The feed action discussed in the ZPL programmers guide for the MF command is primarily for automatic media sensing and calibration The automatic media calibration that controls the dynamic media label to label calibration is the KS command If multiple media types of different lengths material or detection methods web gap black mark notches or continuous are used you should not change these settings The media calibration and detection process ca
80. th software commands the printer will stack and eject peeled labels P1039494 001 GC420d User Guide 8 15 2011 Cutter Option 45 Cutter Option The printer supports a factory installed media cutter option for full width cutting of label liner tag or receipt media These cutter options are all supported in a single cutter housing design The type of cutter option installed in your printer can be verified by printing a printer configuration status label The cutter options are A medium duty cutter for cutting label liner and light tag media LINER TAG Maximum Paper Weight thickness up to 180 g m2 0 0077 in Life 2 million cuts 0 5 mil to 5 mil stock 10 120 g m2 1 million cuts 5 mil to 7 5 mil stock 120 180 g m2 750 000 cuts 7 5 mil to 10 mil 180 200 g m2 Exceeding the maximum media weight density hardness and thickness will shorten the cutters usable life or can cause the cutter to fail jam or other error Cut Width 4 25 inches 108 mm maximum to 0 75 inches 19 mm minimum Minimum distance between cuts label length 1 inch 25 4 mm Cutting shorter media lengths between the cuts may cause the cutter to jam or error By default the cutter operations include a self cleaning preventive maintenance cleaning cut after every twenty fifth cut This feature can be disabled via ZPL or EPL SGD Set Get DO programming command cutter clean cutter but is not recommended Warning There are no operator serv
81. th after a factory default and when the printer detects that a defragment is required When the printer is in this condition allow it to finish defragmenting If this warning occurs frequently check the label formats Formats that frequently and repeatedly write to and erase from memory my cause the printer to defragment often Using formats that avoid frequent and repeated memory write erase event will minimize the need for defragmentation e If this warning condition does not go away contact Technical Support The printer requires service P1039494 001 GC420d User Guide 8 15 2011 71 Print Quality Problems Print Quality Problems No print on the label The media may not be direct thermal media See the test procedure Determining Thermal Media Types on page 31 Is the media loaded correctly Follow the instructions for Loading Roll Media on page 11 in the Getting Started section For printing using transfer ribbon see Printing a Test Printer Configuration Label on page 15 The printed image does not look right The printhead is dirty Clean the printhead The printhead is under temperature e Adjust the print darkness and or print speed Use the PR speed and SD darkness commands referenced in the ZPL Programming Guide e Use the D darkness density and S speed commands in the EPL Programmer S Guide e Manually adjust print darkness with the six flash sequence of Feed Button Modes on page 78
82. ting Modes of Printing You can operate this printer in many different modes and media configurations Direct thermal printing which uses heat sensitive media to print e Standard Tear Off mode allows you to tear off each label or batch print a strip of labels after it 1s printed Label Dispense Mode If an optional dispenser is installed the backing material can be peeled away from the label as it is printed After this label 1s removed the next one is printed e Stand alone The printer can print without being connected to a computer using the printer s auto running label form feature programming based or by using a data input device connected to the printer s serial port This mode accommodates data input devices such as scanners weigh scales Zebra KDU Plus or Zebra KDU Keyboard Display Unit etc e Shared network printing Printers configured with the Ethernet interface option include an internal print server with ZebraLink printer configuration web page and ZebraNet Bridge software for managing and monitoring status of Zebra printers on a network Print Media Types 8 15 2011 Important Zebra strongly recommends the use of Zebra brand supplies for continuous high quality printing A wide range of paper polypropylene polyester and vinyl stock has been specifically engineered to enhance the printing capabilities of the printer and to prevent premature printhead wear To purchase supplies go to htt
83. tion 91 Managing Printer Configuration with ZPL Programming 0000 ce eae 92 ZPL Configuration Status to Command Cross reference 93 Printer Memory Management and Related Status Reports 96 ZPL Programming for Memory Management 96 8 15 2011 GC420d User Guide P1039494 001 xii m Notes P1039494 001 GC420d User Guide 8 15 2011 Introduction This section describes what you get in your shipping box and provides an overview of printer features This includes procedures that describe how to open and close the printer and report any problems Contents GC420d Thermal Printers 2 0 0 0 000000 ee ee RR 2 Whats inthe 219 4209 2225523 40 5626 566 46 4n0 6d 0 55 54 0 5 5 bee eee LT rr LL TG 3 Unpack and Inspect the Printer 0 cc eee eee 3 NOUR akin METTI TTC TT TT 4 Printer Cathe Sic errs eet cee ee eet Oe ee ee ee ee ee eee eee 2 5 Operator Controls cc ee hh hehehe 6 8 15 2011 GC420d User Guide P1039494 001 GC420d Thermal Printers GC420d Thermal Printers P1039494 001 The Zebra GC420d model is the best value in a desktop thermal printer The GC420d printer provides direct thermal printing at speeds up to 4 ips inches per second at a 203 dpi dots per inch print density The GGC420d supports both ZPL and EPL Zebra printer programming l
84. to Number Off Off 1 Solid Green 3 Solid Amber 3 Flashing Green 4 Flashing Red 5 Double Flashing Green 6 Flashing Amber d Alternately Flashing Green and Red 8 Flashing Red Red and Green 9 Flashing Red Amber Green 10 Do NOT reset or turn off power Defragmentation P1039494 001 GC420d User Guide 8 15 2011 69 Status Light Error Resolutions Status Light Error Resolutions The following Status Error Light Resolution numbers correspond to the Status Light Description table on the previous page Each error number may have one or more resolution to correct that error listed 1 The printer is not receiving power Have you turned on the printer power Check power connections from the wall outlet to the power supply and from the power supply to the printer See Attaching Power on page 10 Disconnect the printer from the wall outlet for 30 seconds and then reconnect the printer to the wall outlet 2 The printer is on and in an idle state No action necessary 3 The printer has failed its power on self test POST e If this error occurs right after you turn on the printer contact an authorized reseller for assistance When the printer is operating normally the printer status light will be amber for about 10 seconds before turning green solid or blinking There is a memory error e If this error occurs after you have been printing turn the printer power off and on and then resume printing The pri
85. ts Press the Feed button once when the printer has reached the desired maximum print width Note that the printer driver and applications can override this setting Print Darkness Density Adjustment Prints a succession of bar code simulation patterns starting at the minimum darkness print density heat and ending in the printer s maximum darkness in increments of four 4 using the ZPL darkness setting range values Press the Feed button once the pattern is clear and legible Do not continue to increase the darkness setting or bar code line widths may become distorted reducing readability Note that the printer driver and applications can override this setting Manual Media Calibration The printer runs extensive tests to detect and set media type and media length and then it adjusts the media sensors for optimal performance with the installed media equivalent ZPL command JG Manual calibration is recommended whenever you are using pre printed media print on the liner or if the printer will not correctly auto calibrate A graphical profile of the media sensing will print See Manual Calibration on page 74 for more details and considerations If the Feed button remains pressed after 7th flash sequence cycle finishes the printer exits the configuration mode when the Feed button is released GC420d User Guide P1039494 001 80 Feed Button Modes Notes P1039494 001 GC420d User Guide 8 15 2011 A Appendix Interface
86. tting 2 Change the host computer settings to match the new printer settings Refer to the EPL Page Mode Programming Guide for more information about this command Resetting the Default Serial Port Parameters Do the following to reset the communications parameters on the printer to the factory defaults serial communication settings are 9600 baud 8 bit word length NO parity 1 stop bit and DTR XON XOFF data flow control 1 Press and hold the feed button until the green status LED flashes once waits a moment and flashes twice and then waits again before flashing three times release immediately 2 While the status LED rapidly flashes amber and green press the feed button Serial communications between the printer and the host computer can be set by the ZPL SC command or the FPL Y command Note Early models of Zebra printers running the EPL programming language had 9600 baud NO parity 8 data bits 1 stop bit and a HARDWARE and SOFTWARE merged data control essentially DTR Xon Xoff as the default serial port settings The Windows operating system flow control setting was Hardware for most applications 8 15 2011 GC420d User Guide P1039494 001 22 Connecting your Printer to a Computer Parallel Port P1039494 001 The required cable must have a 25 pin D type DB 25P male connector host on one end and a Centronics printer on the other end IEEE 1284 A B parallel interface specification Pa
87. ud synchronization e ZPL programming SC command e EPL programming Y command e Resetting the printer to its default printer configuration Autobaud Autobaud synchronization allows the printer to automatically match the communication parameters of the host computer To autobaud 1 Press and hold the feed button until the green status LED flashes once twice and then three times 2 While the status LED flashes send the XA XZ command sequence to the printer 3 When the printer and host are synchronized the LED changes to solid green No labels will print during autobaud synchronization ZPL SC Command Use the Set Communications SC command to change the communications settings on the printer 1 With the host computer set at the same communications settings as the printer send the SC command to change the printer to the desired settings 2 Change the host computer settings to match the new printer settings Refer to the ZPL Programming Guide for more information about this command P1039494 001 GC420d User Guide 8 15 2011 21 Connecting your Printer to a Computer EPL Y Command Use the serial port setup Y command to change the communications settings on the printer 1 With the host computer set at the same communications settings as the printer send the Y command to change the printer to the desired settings Note the Y command does not support setting the data flow control use the Xon Xof se
88. up Utilities configuration wizards will instruct you to turn the printer s power on at the appropriate time to complete the installation of your printer Caution Keep the power switch in the OFF position when attaching the interface cable The power cord must be inserted into the power supply and the power receptacle on the back of the printer before connecting or disconnecting the communications cables Interface Cable Requirements P1039494 001 Data cables must be of fully shielded construction and fitted with metal or metallized connector shells Shielded cables and connectors are required to prevent radiation and reception of electrical noise To minimize electrical noise pickup in the cable e Keep data cables as short as possible 6 foot 1 83 m recommended e Do not tightly bundle the data cables with power cords e Do not tie the data cables to power wire conduits Important This printer complies with FCC Rules and Regulations Part 15 for Class B Equipment using fully shielded data cables Use of un shielded cables may increase radiated emissions above the Class B limits GC420d User Guide 8 15 2011 19 Connecting your Printer to a Computer USB Interface Requirements Universal Serial Bus version 2 0 compliant provides a fast interface that is compatible with your existing PC hardware USB s plug and play design makes installation easy Multiple printers can share a single USB port hub
89. upport via the Internet is available 24 hours per day 365 days per year Web Site www zebra com E mail Back Technical Library E mail address emb zebra com Subject line Emaillist Self Service Knowledge Base www zebra com knowledgebase Online Case Registration www zebra com techrequest Which Department Do You Need Regional Headquarters Zebra Technologies Corporation 475 Half Day Road Suite 500 Lincolnshire IL 60069 USA T 1 847 634 6700 Toll free 1 866 230 9494 F 1 847 913 8766 Technical Support T 1 877 ASK ZEBRA 275 9327 For questions on the Pl 647915 2578 operation of Zebra equipment and software please call your distributor For additional assistance contact us Hardware ts1 zebra com Software ts3 zebra com Kiosk printers T 1 866 322 5202 E kiosksupport zebra com Please have your model and serial numbers available Repair Service Department T 1 877 ASK ZEBRA 275 9327 F 1 847 821 1797 E repair zebra com To request a repair in the U S go to www zebra com repair T 1 847 793 6868 T 1 847 793 6864 F 1 847 913 2578 E ttamerica zebra com For back to base service and repair Technical Training Department For Zebra product training courses Inquiry Department T 1 877 ASK ZEBRA 275 9327 For product literature and E inquiry4 zebra com distributor and dealer information Customer Service T 1 877 ASK ZEBRA 275 9327 Department U
90. use the ZPL ID command P1039494 001 GC420d User Guide 8 15 2011 Stand Alone Printing Stand Alone Printing 8 15 2011 Your printer can be configured to work without being attached to a computer The printer has the ability to automatically run a single label form One or more downloaded label forms can be accessed and run with a terminal or wedge device or a Zebra KDU keyboard display unit to call a label form These methods allow the developer to incorporate data input devices such as scanners or weight scales to the printer via the serial port Label formats can be developed and stored in the printer to support labels that have No data entry required and print when the Feed button is pressed No data entry required and print when a label is removed from the printer s optional label dispenser Oneor more data variables to be entered via the terminal or wedge device The label will print after the last variable data field has been input Oneor more label formats that are called by scanning bar codes containing programming to run a label form abel forms designed to work as a process chain with each label including a bar code containing the programming to run the next label in the process sequence Both printer programming languages support special label forms that will automatically run after a power cycle or reset The ZPL looks for a file named AUTOEXEC ZPL and EPL looks for a label form named AUTOFR If b

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