MX240/ MX340/ MX640 Bar Code Printer Service Manual
Contents
1. 20 3 10 Replacing the Label Supply Spindle DC Motor 21 3 11 Replacing the Power Supply ecce crees 23 3 12 Replacing Multi interface Board eese 24 3 13 Replacing the Main Board eere eere eene 26 3 14 Replacing the Stepping Motor Assembly 28 3 15 Replacing the Gap Black Mark Sensor Module 29 3 16 Cutter Module Installation Option 30 3 17 Peel off Kit Installation Option ee eee sees 33 3 18 Internal Rewinding Kit Installation Option 42 4 TROUBLESHOOTING aa NA ana CIE ce ija UR RI DUE MUS ME 47 A l Common PlODICINS s ve Us V CS ETE E aV UR VU Y SENA 47 4 2 Mechanism Fine Adjustment to Avoid Ribbon Wrinkles 51 4 3 Adjusting Heater 53 5 MAINTENANCE krai ta ra kain kian kajinan kn a kaa a ja aaa ma ara a in gi a a aa a aa aana ani 58 UPDATE HISTORY dana ab cee daga uka sa a daga ah acces caged sa a EN aa aa aa2. a cotton swab or lint free cloth soaked with clean water Tear Bar Peel Use the lint free cloth with 100 MX240 MX340 MX640 Bar Code Printer Service Manual Bar ethanol to wipe it Compressed air blower or Monthly vacuum Wipe it with water dampened As needed cloth Interior Brush or vacuum As needed Note e Do not touch printer head by bare hand If you touch it careless please use ethanol to clean it e Please use 10096 Ethanol DO NOT use medical alcohol which may damage the printer head e Regularly clean the print head and supply sensors once change a new ribbon to keep printer performance and extend print head life 59 MX240 MX340 MX640 Bar Code Printer Service Manual UPDATE HISTORY Dae Editor 201485 Add section 3 18 Internal rewinding kit installation 60 Corporate Headquarters 9F No 95 Minquan Rd Xindian Dist New Taipei City 23141 Taiwan R O C TEL 886 2 2218 6789 ro ieee cc D ore Web site www tscprinters com TSC Auto ID Technology Co Ltd E mail apac_sales tscprinters com tech support 2tscprinters com 61 Li Ze Plant No 35 Sec 2 Ligong 1st Rd Wujie Township Yilan County 26841 Taiwan R O C TEL 886 3 990 6677 FAX 886 3 990 5577
3. cetacean 60 MX240 MX340 MX640 Bar Code Printer Service Manual 1 FUNDAMENTAL OF THE SYSTEM 1 1 Overview Front View LED indicators Touch screen LCD display Front panel buttons USB host x 2 Media view window Paper exit chute Media cover MX240 MX340 MX640 Bar Code Printer Service Manual Interior View 3 10 11 12 13 14 Ribbon rewind spindle Print head release lever Media sensor position adjustment knob Rear paper feed roller release lever Ribbon supply spindle Ribbon tension adjustment knob Label supply spindle Rear label guide 11 12 Fan fold media entrance chute Print head pressure adjustment knobs Platen roller Print head Media sensor Front label guide MX240 MX340 MX640 Bar Code Printer Service Manual Rear View 2 3 External label entrance chute Power cord socket Power switch External Bluetooth or WiFi module Option RS 232C interface GPIO interface Option Ethernet interface SD card socket E o ph ee I USB interface 10 Centronics interface 11 USB host x 2 ption MX240 MX340 MX640 Bar Code Printer Service Manual Recommended SD card specification SD card spec SD card capacity Approved SD card manufacturer Class 10 UHS I microSD 16 GB Transcend Sandisk Class 10 UHS I microSD 32 GB Transcend Sandisk The DOS FAT file system is supported for the SD card Class 10 microSD 16 GB Kingston Sandisk Fol
4. per each adjustment then wrinkle is gone print the label again to check if 2 If the right side print head wrinkle is gone adjustment knob setting has been 2 If the left side print head set to index 1 the lowest pressure adjustment knob level has been index please increase the left side set to index 1 the lowest index print head pressure please increase the right side print head pressure 52 MX240 MX340 MX640 Bar Code Printer Service Manual 4 3 Adjusting Heater Line 1 Release 2 lock screws before you start to adjusting heater line screws Heater line lock screws Heater line adjust screw Heater line adjust screw x gt 2 LES gt 2 Adjust heater line by right side and left side heater line adjusting screws o3 MX240 MX340 MX640 Bar Code Printer Service Manual 3 In our standard testing procedure we use Fasson semi gloss paper and print a black bar as below picture nw n NT f iV fis aU E NM DENSITY 12 SPEED 10 4 Please do not use too high density for adjusting heater line Because it would not be easy seeing the uneven printing if using too high density to print the black bar For 200dpi printer below 15 example command line for adjusting heater line SIZE 102 5 mm 63 95 mm GAP 0 09 0 SPEED 8 DENSITY 0 REFERENCE 0 48 DIRECTION 0 0 SET TEAR ON CLS BAR 97 07 00 TEXT LAZ 360 ROMAN Of O
5. section 3 1 to remove the electronics cover Refer to section 3 4 to remove the multi interface board 2 Remove 2 screws to loosen the serial port Screws Copper pillars Screws 26 MX240 MX340 MX640 Bar Code Printer Service Manual 4 Remove Replace the main board 0 UNGU 1 f 31 A kaa MH WANT 1A IT D REU A 5 Reassemble the parts in the reverse procedures 27 MX240 MX340 MX640 Bar Code Printer Service Manual 3 14 Replacing the Stepping Motor Assembly 1 Refer to section 3 1 to remove the electronics cover 2 Remove 4 screws and one connector on the stepping motor assembly A EN J xl gt Connector Screw 3 Remove Replace the stepping motor assembly including belt gears stepping motor 4 Reassemble the parts in the reverse procedures 28 MX240 MX340 MX640 Bar Code Printer Service Manual 3 15 Replacing the Gap Black Mark Sensor Module 1 Refer to section 3 1 to remove the electronics cover 7 3 tai c2 To ae 40 50001 D0LF T ES E Gap black mark 1 051 UE 9 EE ea E 4 2 5 AA Be 3222 at 75 Bee ak sensor connector Zoe T MTS HU 18 d 1 NN E o ae 4 Remove Replace the gap black mark sensor 5 Reassemble the parts the reverse procedures 29 MX240 MX340 MX640 Bar Code Printer Service Manual 3 16 Cutter Module Instal
6. IGURATION T R C G R R c 00 Ethernet MX240 MX340 MX640 Bar Code Printer Service Manual 3 MECHANISM 3 1 Remove the Lower Front Panel Hemove 2 screws to remove lower front panel Screws MX240 MX340 MX640 Bar Code Printer Service Manual 3 2 Remove the Electronics Cover 1 Open printer media cover to remove 1 screw inside the printer 2 Remove 6 screws on electronics cover Screws MX240 MX340 MX640 Bar Code Printer Service Manual 3 Open the media cover about 20 30 degree then take electronics cover out from the printer Please refer to the following pictures 4 Electronics cover Step 2 Take out t electronics cover MX240 MX340 MX640 Bar Code Printer Service Manual 3 3 Remove the Media Cover 1 Remove the electronics cover 2 Remove 3 screws from each hinge Be careful the media cover may fall out from the printer 3 Take out the media cover from the printer Screws e i gt MX240 MX340 MX640 Bar Code Printer Service Manual 3 4 Replacing the Platen Roller Assembly 1 Open printer media cover 2 Disengage print head release lever 3 Remove 3 screws from the platen holder 4 Take out the platen holder tear bar and platen roller assembly and replace a new platen roller assembly _ lt _ Platen roller assembly 5 Reassemble the parts in the reverse procedures MX240 MX340 MX640 Bar Code Printer Service Man
7. MX240 MX340 MX640 Series THERMAL TRANSFER DIRECT THERMAL BAR CODE PRINTER SERVICE MANUAL MX240 MX340 MX640 Bar Code Printer Service Manual TABLE OF CONTENT 1 FUNDAMENTAL OF THE SYSTEM spisicsediccsciccsceiccecssetccaducsseinduasveteduceseeadecesseeteaneeends 1 1 1 COVE VOW aceasta se ADI 1 2 ELEGTRONIGS ii nana KE ANEH a AAR 5 2 1 Summary of Board COnnGClols aa aaa ad aaa a aa aa a Ja Ya aaa 5 2 2 Interface Pin 7 3 MECHANISM S 8 3 1 Remove the Lower Front Panel 8 3 2 Remove the Electronics COVER 9 3 3 Remove the Media COVER V aa a D meee 11 3 4 Replacing the Platen Roller Assembly 12 3 5 Replacing the Print head ASS Y 13 3 6 Replacing the LCD Panel Module eee 16 3 7 Replacing the LCD Control PCB A amp LCD Touch Panel Assembly 17 3 8 Replacing the Front Panel Buttons Rubber Pad amp Buttons Control PCB A 19 3 9 Replacing the Label Supply Spindle
8. abel The platen roller is dirty Clean the platen roller The printer is in Hex Dump mode Tt and on the printer to skip the dump The RS 232 setting is incorrect Re set the Rs 232 setting 50 MX240 MX340 MX640 Bar Code Printer Service Manual 4 2 Mechanism Fine Adjustment to Avoid Ribbon Wrinkles This printer has been fully tested before delivery There should be no ribbon wrinkle presented on the media for general purpose printing application Ribbon wrinkle is related to the media width thickness print head pressure balance ribbon film characteristics print darkness setting etc In case the ribbon wrinkle happens please follow the instructions below to adjust the printer parts The pressure position can be adjusted by using a coin Please use a coin to release the fixing screws as below show SCrews When using label its width is smaller than 2 inch Please release the right side of pressure knob Only use left side pressure and you may adjust the Pressure eft side position too Once you find a position that has balance pressure position on the label the wrinkle will disappear 51 MX240 MX340 MX640 Bar Code Printer Service Manual Pressure Volume Symptom Wrinkle Example The print head pressure adjustment knob has 5 levels of settings 1 is the lowest pressure and 5 is the maximum pressure Clockwise direction adjustment is to increase the print head pressure Please only tur
9. ce Manual 3 18 Internal Rewinding Kit Installation Option Internal rewinding kit parts list 42 MX240 MX340 MX640 Bar Code Printer Service Manual 2 Take out the lower front panel in the right direction as red arrow indicated V MM n E 3 Put 3 locating protrusions into locating holes 43 MX240 MX340 MX640 Bar Code Printer Service Manual 4 Fasten the 2 screws back into the fixing holes 44 MX240 MX340 MX640 Bar Code Printer Service Manual 7 Put the whole rewind spindle module inside the hole Make sure the direction of the module is same as picture Small PCB is on the bottom and the motor is on the top of module EN E gt Du 8 Using screws which come with module to fix the whole rewind spindle module 45 MX240 MX340 MX640 Bar Code Printer Service Manual 9 Connect the 8 pins connector into main board socket Nearest socket 46 MX240 MX340 MX640 Bar Code Printer Service Manual 4 TROUBLESHOOTING 4 1 Common Problems The following guide lists the most common problems that might be encountered when operating this bar code printer If the printer still does not function after all suggested solutions have been invoked please contact the Customer Service Department of your purchased reseller or distributor for assistance Possible Cause Recovery Procedure Power indicator does The power cord is not properly Plug the po
10. ders files stored in the SD card should be in the 8 3 filename format The miniSD microSD card to SD card slot adapter is required MX240 MX340 MX640 Bar Code Printer Service Manual 2 ELECTRONICS 2 1 Summary of Board Connectors 2 2293 E620 DX sae PESAN oe 6 on paro msna C207 0 P ee 5 oO mn re 2 E 1 34247559 T 9 gt t gt 5 TINTE 1591 rm 49 0510001 00LF 1 251 Ver BOE MX240 MX340 MX640 Bar Code Printer Service Manual Main board Connector Description USB Host connector Front USB Host connector WiFi Module connector Parallel Port board connector GPIO interface board connector Head open sensor connector Gap sensor connector Ribbon encoder sensor connector Power supply output 24V DC connector BM Sensor connector Paper roller open sensor connector LCD Power amp LED Power connector Paper Distance Sensor connector RFID module connector Print head connector LCD panel connector 17 Ribbon end sensor connector TPH Power 24V DC connector Stepping motor connector DC motor connector Cutter peel off connector Paper REWIND connector Micro processor Paper damper sensor connector RS 232C connector Ethernet interface SD card socket USB interface USB host x 2 Option 27 MX240 MX340 MX640 Bar Code Printer Service Manual 2 2 Interface Pin Configuration RS 232C XD XD TS ND TS N C TS N C CONF
11. g to the right side please The media guide does not touch the move the label guide to left edge of the media f the label is moving to the left side please printing move the label guide to right stable skew when Check if label size is setup correctly Skip labels when Label size is not specified properly Calibrate the sensor by Auto Gap or Manual Sensor sensitivity is not set properly Gap options printing The media sensor is covered with dust Clear the GAP Black mark sensor by blower Missing printing on the left or right side of Wrong label size setup Set the correct label size label 49 MX240 MX340 MX640 Bar Code Printer Service Manual RTC time is incorrect when reboot the The battery has run down kakang if there is a battery on the main printer Check if the board is plugged in the right doesn t work connector ANG ENOK LED Turn off the printer and wait all LEDs are are blinking fast dark and turn on the printer again Printhead pressure Is incorrect Please refer to the 5 2 chapter Ribbon installation is incorrect Please set the suitable density to have good Wrinkle Problem Media installation is incorrect print quality Print density is incorrect Make sure the label guide touch the edge of Media feeding is incorrect the media guide Gray line on the blank lt The printhead is dirty Clean the printhead l
12. king out the screw 2 here is a locating hole between media sensor and rear paper feed roller most right one 36 MX240 MX340 MX640 Bar Code Printer Service Manual 3 Putthe shaft of the peel off roller module into the locating hole 4 After putting shat into locating hole at certain angle the module would not be able to put inside 37 MX240 MX340 MX640 Bar Code Printer Service Manual 5 Please turn the module in the clockwise direct to put the module inside EN L J rg _ d 1 3 cw lt a NT pan gt 6 Put back the golden color screw and turn it in the clockwise direction to fix the screw 38 MX240 MX340 MX640 Bar Code Printer Service Manual 7 Pushing the peel off roller module upward Finished the installation of peel off roller module 39 MX240 MX340 MX640 Bar Code Printer Service Manual C Rewind Spindle Installation 1 Remove 4 screws below the label supply spindle to take out the rewind spindle cover 2 Put the whole rewind spindle module inside the hole after taking out the cover Make sure the direction of the module is same with left side picture small PCB is on the bottom and the motor is on the top of module 40 MX240 MX340 MX640 Bar Code Printer Service Manual 3 Using screws which come with module to fix the whole rewind spindle module 41 MX240 MX340 MX640 Bar Code Printer Servi
13. lation Option 1 Loose 2 screws to take out the lower front panel 2 Take out the lower front panel in the right direction as red arrow indicated below 30 MX240 MX340 MX640 Bar Code Printer Service Manual 3 Plug the cutter mini DIN cable connector into the cutter peel off connector The triangle mark on the connector must be at the front side 31 MX240 MX340 MX640 Bar Code Printer Service Manual 5 Fasten the 2 screws 32 MX240 MX340 MX640 Bar Code Printer Service Manual 3 17 Peel off Kit Installation Option Peel off Kit parts list Rewind Spindle Module with 4 screws A Peel off Sensor Module Installation 1 Loose 2 screws to take out the lower front panel 33 MX240 MX340 MX640 Bar Code Printer Service Manual 2 Take out the lower front panel in the right direction as red arrow indicated 3 Plug the peel sensor mini DIN cable connector into the cutter peel off connector The triangle mark on the connector must be at the front side 34 MX240 MX340 MX640 Bar Code Printer Service Manual 4 Put 2 locating protrusions into locating holes as red arrows indicated 5 Fasten the 2 screws back into the fixing holes Finished peel off sensor module installation 35 MX240 MX340 MX640 Bar Code Printer Service Manual B Peel off Roller Module Installation 1 Turn the thumb screw on the peel off roller module in the counterclockwise direction until ta
14. module two screws 3 Remove the module connecting cable amp harness MX240 MX340 MX640 Bar Code Printer Service Manual 4 Reassemble the parts in the reverse procedures 3 7 Replacing the LCD Control PCB A amp LCD Touch Panel Assembly 1 Remove the FPC harness from the LCD control PCB A 2 Remove the marked four fix screws from the LCD control PCB A then you can take off the PCB A 3 Remove the four fix screws from the LCD holder then you can take off the holder amp touch panel MX240 MX340 MX640 Bar Code Printer Service Manual Touch panel LCD holder 4 Reassemble the parts in the reverse procedures MX240 MX340 MX640 Bar Code Printer Service Manual 3 8 Replacing the Front Panel Buttons Rubber Pad amp Buttons Control PCB A 1 Remove the marked four fix screws from the Buttons control PCB A then you can take off the button control PCB A amp buttons rubber pad 2 Reassemble the parts in the reverse procedures MX240 MX340 MX640 Bar Code Printer Service Manual 3 9 Replacing the Label Supply Spindle 1 Remove the marked fix screw from the label supply spindle 2 Draw out the label supply spindle for replacement 2 Reassemble the parts the reverse procedures 20 MX240 MX340 MX640 Bar Code Printer Service Manual 3 10 Replacing the Label Supply Spindle DC Motor 1 Please refer to the power supply change procedures to remove the marked fo
15. n the pressure knobs in clockwise direction Print head pressure adjustment knobs 1 Wrinkle happens from label lower 2 Wrinkle happens from label lower left to upper right direction right to upper left direction M MODEL NO MCDEL NO AVE RE LA ABAIN IAL NO SERIAL N M PC INPUT 115 230V 5 34 Pcs INPUT 1 230V 5 3A 50 60 This device complies with Part 17 f the FCC Rules This device complies wit art 15 of the FCC Rules Operation is subject to the fo ving two conditions Operation is subject to the wing two conditions 1 This device may not ca geom interference and 1 This device may not cause i ful interference and 2 This device must interference received Feed direction 2 This device must accept any in erence received including interferenc M cause unde en ee including interference that may caus de soroen a rain 9 6 E mU e vo RoHS x IN MADE IN TAIWAN If the wrinkle on the label starts from If the wrinkle on the label starts from the lower left side to upper right side the lower right side to upper left please do following adjustment side please do following 1 Decrease the right side print head jadjustment pressure adjustment knob setting 1 1 Decrease the left side print head level per each adjustment then pressure adjustment knob setting print the label again to check if 1 level
16. nd media are incompatible The print head pressure is not set If the label thickness is more than 0 22 mm propery the print quality might not be good enough please adjust the heater line adjustment screw counter clockwise to get the best print quality The release lever does not latch the print head properly LCD panel is dark and The cable between main PCB and LCD Check if the cable between main and keys are not working panel is loose LCD is secured or not LCD panel is dark but The printer initialization is Turn OFF and ON the printer again the LEDs are light unsuccessful Initialize the printer LCD panel is dark and LEDs are lit on but The LCD panel harness connector is The LCD panel harness connector is the label is feeding loose plugged upside down forward Ribbon encoder The ribbon encoder sensor connector h asten the connector sensor doesn t work S Ribbon end sensor The connector is loose Check the connector The ribbon sensor hole is covered with Clear the dust in the sensor hole by the doesn t work dust blower Peel sensor is not Peel sensor is not located on the Make sure that the media goes through the correct position Peel sensor working The connector is loose Plug the connect cable correctly Cutter is not working The connector is loose Plug in the connect cable correctly Label feeding is not f the label is movin
17. rectly 47 MX240 MX340 MX640 Bar Code Printer Service Manual If the cutter module is installed please press UP or DOWN key to rotate the cutter blade up forward or down backward to make the blade back to the right position Remove the label Make sure the thickness of label is less than 200 g m2 for regular cutter or 300 g m2 for heavy duty cutter Replace a cutter PCB Re connect cable to interface If using serial cable Please replace the cable with pin to pin connected Check the baud rate setting The default baud rate setting of printer is 9600 n 8 1 If using the Ethernet cable Check if the Ethernet RJ 45 connector green LED is lit on Check if the Ethernet RJ 45 connector amber LED is blinking Check if the printer gets the IP address when using DHCP mode Check if the IP address is correct when Cable is not well connected to serial or using the static IP address USB interface or parallel port Wait a few seconds let the printer get the Not Printing The serial port cable pin configuration communication with the server then check is not pin to pin connected the IP address setting again Chang a new cable Ribbon and media are not compatible Verify the ribbon inked side Reload the ribbon again Clean the printhead The print density setting is incorrect Printhead s harness connector is not well connected with printheat Turn off the p
18. rinter and plug the connector again Check if the stepping motor is plugging in the right connector Check your program if there is a command PRINT at the end of the file and there must have CRLF at the end of each command line Delete unused files in the FLASH DRAM The max numbers of file of DRAM is 1024 Memory full files The space of FLASH DRAM is full The max user addressable memory space FLASH DRAM of DRAM is 8192 KB The max user addressable memory space of FLASH is 80 MB SD card is damaged Use the supported capacity SD card SD card is unable to sp card doesn t insert correctly Insert the SD card again Use the non approved SD card The supported SD card spec are listed in Cutter jammed There is no cutter installed on the printer Cutter PCB is damaged manufacturer section 1 1 48 MX240 MX340 MX640 Bar Code Printer Service Manual Reload the supply Clean the print head Clean the platen roller Adjust the print density and print speed Run printer self test and check the print head test pattern if there is dot missing in the pattern Change proper ribbon or proper label media Please refer to section 4 5 for avoiding the ribbon wrinkle Ribbon and media is loaded incorrectly Dust or adhesive accumulation on the print head Print density is not set properly Poor Print Quality Print head element is damaged Ribbon a
19. s happens please turn the heater line button in opposite direction In the previous case you may turn clockwise direction Until you see the even picture show you 11 Then after adjusting it lock the 2 locking screws to fix the heater line position PS For different thickness label you may need to print out such pattern to see if this heater line is fit with this heat line position or not If you find that even with the lowest speed and highest density the density is still not enough you can try to do this test to adjust heat line 57 MX240 MX340 MX640 Bar Code Printer Service Manual 5 MAINTENANCE This session presents the clean tools and methods to maintain your printer Please use one of following material to clean the printer B Cotton swab Head cleaner pen B lint free cloth B Vacuum Blower brush B 100 ethanol 2 cleaning process is described as following Printer Part Method 1 Always turn off the printer Clean the print head when changing a before cleaning the print head new ribbon roll 2 Allow the print head to cool for a minimum of one minute 3 Use a cotton swab Head cleaner pen and 100 ethanol to clean the print head surface Print Head Print Head Print Head Element EE b 22222 Element Head Cleaner Pen 1 Turn the power off Clean the platen roller when changing 2 Rotate the platen roller and a new ribbon roll Platen Roller wipe it thoroughly with
20. ual 3 9 Replacing the Print head ASS Y 1 Loosen the print head secure screw counterclockwise until it can be taken out from the mechanism 798 3 Carefully disconnect connectors from the print head assembly Please do not pull the cable to right and left side alternatively in order to disconnect it from the print head connector Please use the flat screw driver to push at the key in the middle of the connector When the connector becomes loose from the print head connector you can disconnect it 13 MX240 MX340 MX640 Bar Code Printer Service Manual ur lt 4 Remove Replace the print head assembly 5 Connect the print head cable and carefully slide print head assembly into the print mechanism Make sure the two locating protrusion pins on the print mechanism mounting plate snap into the locating holes on the print head MX240 MX340 MX640 Bar Code Printer Service Manual Locating holes 6 Check the print head has been totally closed to the print mechanism before secure the print head by the previously removed thumbscrew 7 Reassemble the parts in the reverse procedures Note Please use the come with new print head secure screw to replace the print head assembly DO NOT re use the original screw 15 MX240 MX340 MX640 Bar Code Printer Service Manual 3 6 Replacing the LCD Panel Module 1 Follow the previous step to remove the electronics cover 2 Remove the marked fix LCD panel
21. ur fix screws amp cable Then you can see the DC motor 2 Remove the marked fix two screws from the DC motor Remove the DC motor cable connector from the main board 3 Then you can remove the DC motor remove tne WUKU WS NE cable 21 MX240 MX340 MX640 Bar Code Printer Service Manual 4 Reassemble the parts in the reverse procedures 22 MX240 MX340 MX640 Bar Code Printer Service Manual 3 11 Replacing the Power Supply Unit 1 Refer to section 3 1 to remove the electronics cover 2 Remove 4 screws and 2 connectors kandi TINN Connector Screw 3 Remove Replace the power supply unit 4 Reassemble the parts in the reverse procedures 23 MX240 MX340 MX640 Bar Code Printer Service Manual 3 12 Replacing Multi interface Board 1 Refer to section 3 1 to remove the electronics cover 2 Remove 2 screws to loosen the parallel port Screws 3 Remove 2 screws and one FPC cable from the connector Screws FPC cable 24 MX240 MX340 MX640 Bar Code Printer Service Manual 4 Remove Replace the multi interface board iW T M TR gt Luh vie lt p N c e e 4100 0800190 86 Es Sa il T i Hii j 5 Reassemble the parts in the reverse procedures 25 MX240 MX340 MX640 Bar Code Printer Service Manual 3 13 Replacing the Main Board 1 Refer to
22. wer cord in printer and outlet not illuminate connected Switch the printer on SARDISgCONpen The printer print head release lever or Rear paper feed roller Please engage the release levers release lever is not engaged No Ribbon Running out of ribbon Supply a new ribbon roll The ribbon is installed incorrectly Please refer to the steps in user s manual to reinstall the ribbon Running out of label Supply a new label roll No Paper The label is installed incorrectly Please refer to the steps in user s manual to Gap black mark sensor is not reinstall the label roll calibrated Calibrate the gap black mark sensor Gap black mark sensor is not onthe Align the media sensor on top of the media media or black mark or nutch Gap black mark sensor is not set Paper Jam correctly for the media Select the correct sensor for the media Make sure media width and height are Calibrate the gap black mark sensor set exactly same as actual media width Set media width and height correctly and height Remove the stuck label inside the print Labels may be stuck inside the printer mechanism or at the media sensor mechanism or media sensor If the peeler module is installed and function Take Label is enabled please remove the peeled label spedi uncon PRAET If there is no peeler module installed please switch off the printer and install it Check if the peeler module cable connector is plugged cor
23. y Or SPEED s GETSETTINGS CONFIG TSPL SPEED TEXT 142 290 ROMAN TTLE Uz 0 O0 DENSITY 1 GETSETTINGS CONFIG TSPL DENSITY TEXT 1427420 ROMAN PTE 0 l9 S N 4 s 54 MX240 MX340 MX640 Bar Code Printer Service Manual GETSETTINGS SYSTEM INFORMATION SERIAL PRINT 1 5 The lighter black bar may like left picture DIS SCAN WIS 0 ANSNI0 8 01148 54 tars v aes Ea c h bb te gt A Ka A ll A 4 M sem ALL w VV MARS Ate et pem hv an TT 26 evig e DS DENSITY 8 SPEED 10 7 For this situation please adjust right side heater line adjustment knob by clockwise direction until you see good density full average black 55 MX240 MX340 MX640 Bar Code Printer Service Manual sometimes when right side is ok left size may become a little white In this time you may need to adjust left side knob 8 Until both side is full average black like the first one picture Or like left side picture MA ABA am 01 0 6 6dW 0 ALISN30 3 03345 015016564 NIS 0 ALISNIO 3 03348 9 f you keep turning the heater over the best position it may look like below picture again Right side is lighter again 0150 25 NIS 0 ALISNIG 3 0333 015012564 NIS 0 ALISN3Q 8 03348 56 MX240 MX340 MX640 Bar Code Printer Service Manual 10 If thi
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