• Table of Contents • Index • Safety and Notices • Trademarks • Start
Contents
1. 4 10 Service Manual 4402 001 Print Engine Removal Remove the rear cover Remove the top housing assembly Remove the left cover Remove the right cover Remove the middle frame Move carrier to the center Remove three screws B NET 8 Slide the print engine forward and remove Repair Information 4 11 4402 001 ASF Module Removal 1 Remove the print engine 2 Remove three screws A 3 Remove the ASF module System Board Removal 4 5 Remove the print engine Remove the ASF module Disconnect the transport and paper feed motor cables from the system board Remove the four screws Remove the system board WARNING When removing the system board use care not to damage the EOF flag 4 12 Service Manual 4402 001 Carrier Removal Na 7 8 Remove the rear cover Remove the top housing Assembly Remove the left and right covers Disconnect the carrier cable from the system board Loosen the set screw on the carrier belt tensioner Depress the belt tensioner and remove the belt from the transport carrier motor gear Remove both retainer clips from the carrier shaft Remove the shaft and carrier Note Keep dirt and grease off of the encoder strip Obsesrve orientation of the encoder strip to the sensor located on the rear of the carrier Be careful not to damage the encoder strip when rein2. Intermittent nozzle failures can be caused by worn parts in the maintenance station Go to the Maintenance Station Removal on page 4 14 and then return to this check Diagnostic Information 2 15 4402 001 FRU Function Action 6 Paper Feed Ink smudging and smearing can be caused by paper problems or problems in the paper feed area Check the following Correct type of paper is being used Also check the paper for curl or wrinkles Feed rollers for wear dirt or looseness Gears for wear or binds Paper path for obstructions 7 Carrier Transport Blurred print and voids can be caused by problems in the carrier transport area Check the following Carrier transport belt for wear Carrier guide rod for wear or dirt If dirty clean and lubricate Carrier to carrier frame engagement should be lubricated with grease P N 99A0394 ldler pulley parts for wear damage or looseness 8 Alignment 2 16 Service Manual Uneven vertical lines can be adjusted by performing the printhead alignment adjustments The user is directed through the Printer Control program to perform the printhead alignment adjustments when replacing a printhead cartridge 4402 001 Quality Service Check FRU Function Action Scanned images are faded or colors are dull blurry or fuzzy Images are slanted or crooked and the straight lines in
3. 4402 001 FRU Action 4 Encoder Strip Carrier with PCB Assembly Check the encoder strip for proper installation Also check it for wear dirt and grease Be sure all printhead connectors are fully seated Check the cables for damage If the encoder strip and all connections are okay but the carrier still slams the side frame replace the print engine Go to the Print Engine Removal on page 4 11 5 Carrier Transport Belt Idier Pulley Parts Carrier Frame Check for worn loose or broken parts Check for obstructions blocking carrier movement Check the carrier belt idler pulley mounting screw Loosen the screw and allow the tension spring to take up any slack in the belt Tighten the screw If the pulley mounting bracket has reached the stop replace the belt Go to the Belt Idler Pulley Assembly Print Engine Removal on page 4 14 Lubricate carrier to carrier frame engagement with grease P N 99A0394 6 Printhead Carrier Assembly 7 Maintenance Station Disconnect the printer and check the carrier printhead connector J2 If the connection is good remove the printhead carrier and check the cable connection to the home sensor board If the problem remains replace the system board Go to the System Board Removal on page 4 12 A problem with the maintenance station can cause carrier movement problems at the right margin Go to the Maintenance Station Removal on page 4 14
4. 8 Access Cover Sensor If the carrier does not move toward the cartridge load position when the access cover is opened verify that power is on If the carrier still does not move check connector J9 pin 1 for approximately 5 volts with the cover closed If the voltage is correct replace the sensor Go to the Access Cover Sensor Removal on page 4 6 If the voltage is incorrect replace the system board Go to the System Board Removal on page 4 12 Diagnostic Information 2 7 4402 001 CCD Module Assembly Service Check e The CCD charged coupled device Module will not move during POST Test The CCD lamp does not come on when CCD module assembly moves FRU Action 1 CCD Module Assembly If CCD module will not move go to the Gear Train Assembly Service Check on page 2 9 Note If the printer is not connected to the PC and Lexmark Scan and Copy Control program is not opened the CCP lamp will not come on If lamp does not come on as CCD module assembly is scanning or moving check connector J7 on the System board If connected and the lamp still does not work replace the CCD module assembly If the lamp does not correct the problem after the CCD replacement replace the system board See System Board Removal on page 4 12 for more information To unlock scanner press the red lever down The lever is located by the USB plug on the rear of the machine Note Unlock scanner
5. Lubrication Specifications Lubricate only when parts are replaced or as needed not on a scheduled basis Use grease P N 99A0394 to lubricate the following All gear mounting studs The left and right ends of the large feed roller at the side frames The carrier to carrier frame engagement The carrier guide rod and carrier guide rod bearings WARNING Keep the grease from coming into contact with any electrical components may cause printer damage or failure Do not lubricate the scanner rod or bearing after replacing Preventive Maintenance 6 1 4402 001 6 2 Service Manual 4402 001 7 Parts Catalog How to Use This Parts Catalog SIMILAR ASSEMBLIES If two assemblies contain a majority of identical parts they are shown on the same list Common parts are shown by one index number Parts peculiar to one or the other of the assemblies are listed separately and identified by description NS Not Shown in the Asm Index column indicates that the part is procurable but is not pictured in the illustration e the parts description column indicates the part is available in the listed parts packet NA Not available as a FRU Parts Catalog 7 1 4402 001 Assembly 1 Covers 4402 001 Assembly 1 Covers E Units Description 1 1 12G6141 1 Cover Assembly Rear 2 1266140 1 Felt Pad Assembly 3 12G6138 1 Base Assembly 4 1266135 1 Cover Right 5 12G6133 1 Cover
6. Note To stop test page press the power button again gt The test page prints three color bars nozzle purge pattern black purge pattern black nozzle purge pattern and heater checks The purge pattern is used to clear all printhead nozzles The nozzle test pattern prints all nozzles on a diagonal line There should be no breaks in the nozzle test pattern A break in the pattern indicates one or more nozzles are not working If a print quality problem exists see Print Quality Service Check on page 2 15 Diagnostic Aids 3 1 4402 001 3 2 Service Manual 4402 001 4 Repair Information This chapter explains how to make adjustments to the printer and how to remove defective parts Note Read the following before handling electronic parts Handling ESD Sensitive Parts Many electronic products use parts that are known to be sensitive to electrostatic discharge ESD To prevent damage to ESD sensitive parts follow the instructions below in addition to all the usual precautions such as turning off power before removing system board Keep the ESD sensitive part in its original shipping container a special ESD bag until you are ready to install the part into the machine Make the least possible movements with your body to prevent an increase of static electricity from clothing fibers carpets and furniture Put the ESD wrist strap on your wrist Connect the wrist band to the system ground point This disch
7. move Go to the Carrier Transport Service Check on page 2 6 Go to the Gear Train Assembly Service Check on page 2 9 CCD lamp does not turn on Go to the CCD Module Assembly Service Check on page 2 8 2 2 Service Manual 4402 001 Symptom Tables Locate the symptom in the following tables and take the appropriate action Carrier Transport Problems Symptom Action No carrier movement Go to the Carrier Transport Slow carrier movement Service Check on page 2 6 Carrier stops Carrier slams side frame Maintenance Station Problems Symptom Action Maintenance station Go to the Maintenance Station Service Check on page 2 10 Fails to cap the printheads Fails to clean the printheads Operator Panel Problems Symptom Action Buttons do not work Check operator panel cable Power or status lights do not connection at J6 on the system work board Then run the Power On Self Test POST Sequence on page 2 1 If operator panel fails replace the operator panel assembly If the problem still exists replace the system board Go to the System Board Removal on page 4 12 Note If any buttons or lights fail check connection J6 If the problem remains replace the operator panel assembly Go to the Operator Panel Removal on page 4 4 Diagnostic Information 2 3 4402 001 Printer Communicatio
8. ASO TA SME AS AA ler Sons h Nele ASS T SUL SASS HASHA sr AS se SA HALL SAE VS AHO ANUCH ASAE Ol ALES Best t AAS SUAS 2 A ES AE TP EUR GE NR DLE JB RERE RP ER BSE MARANA CMS A BAS E gs AL BT NES JR BL E T5 5 TA o ANRTHNZEIENErRMIM HERTHFNER ERSHANT Safety Information ix 4402 001 Preface This manual describes the Lexmark X73 Scan Print Copy 4402 001 and contains maintenance procedures for service personnel only It is divided into the following chapters 1 General Information contains a general description of the printer and the maintenance approach used to repair it Special tools and test equipment are listed in this chapter as well as general environmental and safety instructions Diagnostic Information contains an error indicator table symptom tables and service checks used to isolate failing field replaceable units FRUS Diagnostic Aids contains tests and checks used to locate or repeat symptoms of scanner printer copier problems Repair Information provides instructions for making printer adjustments and removing and installing FRUs Connector Locations uses illustrations to identify the connector locations and test points on the printer Preventive Maintenance contains the lubrication specifications and recommendations to prevent problems Parts Catalog cont
9. Access with Latch 6 12G6175 1 Paper Exit Tray 7 12G6134 1 Cover Left NS 12G6156 4 Screws PP NS 7366857 1 Plain package B M includes Carton Cushion Set Sealing Tape Parts Catalog 7 3 4402 001 Assembly 1 cont Covers 7 4 Service Manual 4402 001 Assembly 1 cont Covers Assembly 1 Covers Asm Index 1 1 2 3 4 5 Part Number 12G6171 12G6174 12G6126 12G6122 12G6150 Units Description Scanner Lid Assembly Paper Support ASF Top Housing Assembly Middle Frame Assembly Belt Scanner Parts Catalog 7 5 4402 001 Assembly 2 Paper Feed Frame and Carrier Transport 7 6 Service Manual 4402 001 Assembly 2 Paper Feed Frame and Carrier Transport Asm Index 2 1 2 3 4 5 6 NS Part Number 12G6121 12G6120 12G6151 1206123 12096149 1296154 1296153 Units asa a a a a Description ASF Module Printing Engine Encoder Strip with Clip Idier Pulley Assembly Belt Carrier Maintenance Station Assembly EOF Flag with Spring Parts Catalog 7 7 4402 001 Assembly 3 Electronics 7 8 Service Manual 4402 001 Assembly 3 Electronics 3 1 2 NS 4 6 1296177 1296176 1296125 1296172 1296173 1296170 1296137 1296128 1296157 12096158 CCD Module Assembly with Cable CCD Cable Gear Train Assembly Operator Panel Assembly Operator Panel Overla
10. FPC Flat Printhead Cable FRU Field Replaceable Unit HVPS High Voltage Power Supply LVPS Low Voltage Power Supply OEM Original Equipment Manufacturer Vac Volts alternating current V de Volts direct current ZIF Zero Insertion Force 1 4 Service Manual 4402 001 2 Diagnostic Information Start Use the symptom tables service checks and diagnostic aids in chapter three to determine the printer failure Power On Self Test POST Sequence Press the power button to turn machine on Power light turns on The paper feed motor runs then stops Status light stays on for a second and turns off The carrier moves to the leftthen returns to the right stopping at the maintenance station Power light stays on If your printer completes POST with no errors go to the Symptom Tables on page 2 3 locate the symptom and take the indicated action If your printer does not complete POST locate the symptom in the following table and take the indicated action Diagnostic Information 2 1 4402 001 POST Symptom Table Symptom Action No Power or Go to the Power Service Check on page 2 14 If okay Status lights and no motors run go to the Operator Panel Problems on page 2 3 Paper feed gears do not turn Go to the Paper Feed Service Check on page 2 11 Carrier does not move Go to the Carrier Transport Service Check on page 2 6 Carrier slams side frame CCD does not
11. Scan To Fax button 1 3 1 1 4403 001 Service Checks Carrier Transport 2 6 CCD Module Assembly 2 8 Gear Train Assembly 2 9 Paper Feed 2 11 Paper Path 2 13 2 14 Print Quality 2 15 Power Setup Button Specifications Scanner Start 2 1 Symptom Table POST Symptom Tables 2 3 T TestPage 3 1 Part Numbers 12G6120 12G6121 12G6122 1296123 1296125 1296126 1296128 1296133 1296134 1296135 1296137 1296138 1296140 1206141 1296149 1296150 1296151 1296153 1296154 1296156 1296157 1296158 1296170 1296171 1296172 1296173 1296174 1 2 Service Manual 1 2 Pe 23 it 7 9 7 5 7 9 7 3 7 3 7 3 7 9 7 3 7 3 7 3 d 7 5 Pi 7 1 d 7 3 7 9 7 9 PL 7 b 7 9 2 9 F0 12G6175 12G6176 12G6177 7366857 7 9 7 9 7 3
12. lf the symptom has not changed replace the system board Go to the System Board Removal on page 4 12 2 14 Service Manual 4402 001 Print Quality Service Check FRU Function Action Printhead Cartridge Color Printhead Cartridge Cross Contamination Printhead Carrier Assembly Be sure the machine contains good print cartridges Cross contamination of color inks results in incorrect colors printed as when green prints for yellow when yellow and blue are mixed in the printhead cartridge This problem resolves quickly as the printhead cartridge is used If cross contamination occurs check the following The maintenance station wiper for damage The printhead nozzle plate was resealed with tape Reseat the printhead cable in the system board and check the following parts for wear or damage Printhead Cartridge Latch Latch Spring Carrier System Board Printhead Carrier Assembly Perform the Test Page on page 3 1 Look for a break in the diagonal line of the nozzle test pattern A broken line indicates one or more print nozzles are not working Run the test again to verify the failure Check the gold plated contacts on the end of the printhead carrier cable for dirt wear and damage Use only a clean dry cloth to clean the contacts If the symptom remains replace the system board Go to the System Board Removal on page 4 12 Maintenance Station
13. rollers If any rollers need to be replaced go to the Print Engine Removal on page 4 11 and replace the print engine 5 End of Forms Flag and Spring Check for binds or damage 2 12 Service Manual 4402 001 Paper Path Service Check Examine the machine for the following before you begin this service check Check the entire paper path for obstructions Be sure the correct type of paper is being used Be sure the printer is installed on a flat surface FRU Action 1 Large and Small Check for wear and binds Feed Rollers 2 Small Feed Roller Check for damage Springs 3 Auto Sheet Check the pick roller for wear Feeder Assembly 4 Mid Frame Asm Check the following for wear Exit roller Star rollers 5 End of Forms Check for binds or damage Flag Diagnostic Information 2 13 4402 001 Power Service Check FRU Action 1 External Power Supply Plug the external power supply into an outlet Check for 30 V dc If voltage is incorrect replace the power supply 2 Printhead Cable Paper Feed Motor Carrier Transport Motor Operator Panel 3 System Board Unplug the printer Disconnect the printhead cable and plug in the printer Look for a symptom change Check the failing part for shorts and replace as necessary Repeat this procedure for the carrier transport motor paper feed motor and operator panel
14. the printhead Carrier movement to the left uncaps the printhead The wiper cleans the printhead nozzles as the carrier leaves the maintenance station The wiper cleans the printhead only when the carrier is moving to the left There should be no wiping action of the printhead nozzles when the carrier is moving to the right After the cleaning operation is complete a tab on the maintenance station engages a tab on the carrier causing the wiper to lower Check the maintenance station for worn or broken parts Replace if needed Go to the Maintenance Station Removal on page 4 14 Worn wipers cause degraded print quality just after a maintenance cleaning Check for loose or worn wipers Worn caps cause the printhead nozzles to dry and clog Check for loose or worn caps 2 10 Service Manual 4402 001 Paper Feed Service Check If your machine does not have paper jam problems continue with the service check If your machine does have a paper jam problem examine it for the following before you begin the service check Check the entire paper path for obstructions Be sure there is not too much paper in the sheet feeder Be sure the correct type of paper is being used Check for static in the paper FRU Action 1 System Board Run the Power On Self Test POST Sequence on page 2 1 Replace parts as needed To check the paper feed motor disconnect the paper feed connector J3 and check fo
15. ades of Gray Text Line Art 1 Bit Per Pixel Scan Method One Pass Scanning Scan Area 8 5 X 11 7 inches 216 X 292 mm Scan Resolution Optical 600 dpi H X 1200 dpi V Interpolated 9600 X 9600 1 2 Service Manual 4402 001 Operator Panel Status Paper Feed Power Press this button When you want to Setup Adjust your copy and scan settings using the Scan amp Copy Control Program on your computer Color Copy Make a color copy Black Copy Make a black and white copy Scan Press the scan button after selecting a Scan To destination Scan To Select a scan destination such as To copy To and e mail To an application To a file or To fax Scan To E mail Scan an image or document and send with an e mail message Scan To Fax Scan an image or document and send as a fax Paper Feed Load or eject a sheet of paper from the printer Power Turn the printer on or off General Information 1 3 4402 001 Maintenance Approach The diagnostic information in this manual leads you to the correct field replaceable unit FRU or part Use the symptom index service checks and diagnostic aids to determine the symptom and repair the failure After you complete the repair perform tests as needed to verify the repair Abbreviations B M Bill of Material CCD Charged Coupled Device EOF End of Form ESD Electrostatic Discharge
16. ains illustrations and part numbers for individual FRUs x Service Manual 4402 001 1 General Information The Lexmark X73 machine is an electro mechanical scanner printer and copier that creates characters and graphics by composing programmed patterns of ink dots using a printhead and liquid ink The printhead uses small heater plates and nozzles to control ink flow and the formation of characters on the print media The printhead assembly and ink supply are combined into a single unit print cartridge available as a customer replaceable supply item Dual printheads provide color and true black printing without changing printheads The number and size of inkjets or nozzles in the printhead determines the overall quality and capability of the printer The black cartridge has a total of 208 nozzles and installs on the right The color cartridge has a total of 192 nozzles and installs on the left The printer is capable of printing in two directions from either cartridge Power Consumption 6 Watts power off and power to the printer e 8 Watts Idle Mode power on not printing 21 Watts Printing average e 31 Watts Printing peak General Information 1 1 4402 001 Scanner Specifications Scanner Type Flatbed CCD Scan Modes True Color 48 Bit Internal 68 7 Billion Colors 24 Bit External 16 7 Million Colors Gray Mode 12 Bits Internal 4 096 Shades of Gray 8 Bits External 256 Sh
17. aintenance Station Service Check 2 10 Paper Feed Service Check 2 11 Paper Path Service 2 13 Power Service CHER og uus xwv Os Ed yp ew Ea 2 14 Print Quality Service pa a ap ada 2 15 Scan Copy Quality Service Check 2 17 bpisghosHe AIS 1 DE RE 3 1 TES PME a aaa cR AUR as Es 3 1 Repair Information 4 1 Handling ESD Sensitive Paris 4 1 4 2 4402 001 Removal Procedures aaa 4 2 Releasing Plastic Latehias nun aan 4 2 Scanner Lid Assembly Removal 4 3 Haar Cover 4 3 Operator Panel Removal ram om aan 4 4 Top Housing Assembly Removal 4 4 Paper Support Removal amena i dal 4 4 CCD Module Assembly Removal 4 5 Gear Train Assembly Removal 4 6 Access Cover Sensor Removal 4 6 Fight COVED REMOVAL ana ea 4 7 Access Cover Remova sara 4 7 dna da 4 8 Middle Frame Removal nenn a ae es 4 9 Print Engine Re
18. arges any static electricity in your body to the machine Hold the ESD sensitive part by its edge connector shroud cover do not touch its pins If you are removing a pluggable module use the correct tool Do not place the ESD sensitive part on the machine cover or on a metal table if you need to put down the ESD sensitive part for any reason first put it into its special bag Machine covers and metal tables are electrical grounds They increase the risk of damage because they make a discharge path from your body through the ESD sensitive part Large metal objects can be discharge paths without being grounded Prevent ESD sensitive parts from being accidentally touched by other personnel Install machine covers when you are not working on the machine and do not put unprotected ESD sensitive parts on a table If possible keep all ESD sensitive parts in a grounded metal cabinet case Be extra careful in working with ESD sensitive parts when cold weather heating is used because low humidity increases static electricity Repair Information 4 1 4402 001 Adjustments The user is directed in the Printer Control program to perform the printhead alignment adjustments after replacing a print cartridge Removal Procedures The following procedures are arranged according to the name of the printer part discussed CAUTION Unplug the power cord before removing any paris Releasing Plastic Latches Many of the parts are held i
19. ark is a trademark of Lexmark International Inc registered in the United States and or other countries Other trademarks are the property of their respective owners O Copyright Lexmark International Inc 2001 2002 All rights reserved UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 and in applicable FAR provisions Lexmark International Inc Lexington KY 40550 U S A P N 12G3798 4402 001 Table of Contents Safety Information ee Sd x General Information ss snes aan da a 1 1 Power aan 1 1 Scanner Specifications ac a a A 1 2 Sao Panel caipiras ai 1 3 una 1 4 sense mE 1 4 Diagnostic Information 2 1 rl ger E 2 1 Power On Self Test POST 2 1 POST TAB susana aus ea a 2 2 SON uaa dua ae 2 3 euere 2 6 Carrier Transport Service Check 2 6 CCD Module Assembly Service Check 2 8 Gear Train Assembly Service Check 2 9 M
20. before use 2 8 Service Manual 4402 001 Gear Train Assembly Service Check CCD will not move or scan FRU Action 1 Gear Train Assembly Disconnect J5 and check the reading at pin 1 and 3 for approximately 225 5 ohms Ifthe reading is incorrect replace the gear train assembly Go to the Gear Train Assembly Removal on page 4 6 If the reading is correct check at pins 1 through 6 for approximately 28 volts with the machine turned on If the voltage is incorrect replace the system board Go to the System Board Removal on page 4 12 Note Ensure scanner is unlocked 2 Scanner Belt Check the belt for proper installation If the belt is damaged replace Go to the Belt Idler Pulley Assembly Print Engine Removal on page 4 14 Note If not properly installed the belt will slip Diagnostic Information 2 9 4402 001 Maintenance Station Service Check The maintenance station has three functions 1 Wipes the printhead nozzles to clean them of dirt 2 Provides a place for printheads to fire all nozzles keeping them clear prior to printing 3 Seals the printhead when it is not being used to prevent the nozzles from drying FRU Action 1 Maintenance As the carrier moves to the right over the Station Assembly maintenance station a slot on the bottom of the carrier engages a tab on the sled of the maintenance station causing the cap to rise and seal
21. belt from pulleys Lift and remove the CCD module No 8 D Repair Information 4 5 4402 001 Gear Train Assembly Removal 1 Remove the CCD module assembly 2 Disconnect the gear train assembly cable from the system board 3 Remove two screws 4 Lift and remove the gear train assembly Access Cover Sensor Removal 1 Remove the top housing assembly 2 Disconnect the access cover sensor cable J9 from the system board 3 Remove the sensor screw 4 Remove the sensor Note routing of cables 4 6 Service Manual 4402 001 Right Cover Removal 1 Remove the rear cover 2 Depress two latches A 3 Remove the right cover Access Cover Removal Remove the rear cover Remove the right cover Depress the access cover hinge Remove the access cover Repair Information 4 7 4402 001 Left Cover Removal 1 Remove the rear cover 2 Depress two latches A 3 Remove the left cover 4 8 Service Manual 4402 001 Middle Frame Removal 1 Remove the scanner lid assembly 2 Remove the rear cover 3 Remove the top housing assembly 4 Disconnect the operator panel and CCD cables from the system board e Remove left and right covers Remove the operator panel assembly 7 Remove the two screws A gt Repair Information 4 9 4402 001 8 Depress the two clips and slide the middle frame forward to remove
22. cter les normes strictes de s curit globale lors de l utilisation de composants Lexmark sp cifiques Les caract ristiques de s curit de certains l ments ne sont pas toujours videntes Lexmark ne peut tre tenu responsable de l utilisation d autres pi ces de rechange Les consignes d entretien et de r paration de ce produit s adressent uniquement un personnel de maintenance qualifi Le d montage et l entretien de ce produit pouvant pr senter certains risques lectriques le personnel d entretien qualifi devra prendre toutes les pr cautions n cessaires Safety Information V 4402 001 di sicurezza e Il prodotto stato progettato testato e approvato in conformit a severi standard di sicurezza e per l utilizzo con componenti Lexmark specifici Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione Lexmark non responsabile per l utilizzo di parti di ricambio di altri produttori e Le informazioni riguardanti la manutenzione di questo prodotto sono indirizzate soltanto al personale di assistenza autorizzato Durante lo smontaggio e la manutenzione di questo prodotto il rischio di subire scosse elettriche e danni alla persona pi elevato Il personale di assistenza autorizzato deve quindi adottare le precauzioni necessarie Sicherheitshinweise Dieses Produkt und die zugeh rigen Komponenten wurden entworfen und getestet um beim Einsatz d
23. ie weltweit g ltigen Sicherheitsanforderungen zu erf llen Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich Sofern Teile eingesetzt werden die nicht von Lexmark sind wird von Lexmark keinerlei Verantwortung oder Haftung f r dieses Produkt bernommen Die Wartungsinformationen f r dieses Produkt sind ausschlieBlich f r die Verwendung durch einen Wartungsfachmann bestimmt Wahrend des Auseinandernehmens und der Wartung des Ger ts besteht ein zus tzliches Risiko eines elektrischen Schlags und k rperlicher Verletzung Das zust ndige Fachpersonal sollte entsprechende Vorsichtsma nahmen treffen vi Service Manual 4402 001 Pautas de Seguridad Este producto se ha disefiado verificado aprobado para cumplir los m s estrictos est ndares de seguridad global usando los componentes espec ficos de Lexmark Puede que las caracter sticas de seguridad de algunas piezas no sean siempre evidentes Lexmark no se hace responsable del uso de otras piezas de recambio e La informaci n sobre el mantenimiento de este producto est dirigida exclusivamente al personal cualificado de mantenimiento Existe mayor riesgo de descarga el ctrica y de da os personales durante el desmontaje y la reparaci n de la m quina El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias Informa es de Seguran a Este produto foi concebido te
24. int Carrier moves but no print Printhead dries prematurely Colors print incorrectly Vertical alignment off Ink smearing Go to the Paper Feed Service Vertical streaks on paper Check on page 2 11 Print lines crowded Diagnostic Information 2 5 4402 001 Service Checks Carrier Transport Service Check FRU Action 1 System Board Carrier Transport Motor Check the transport carrier motor connector J4 If connected check for approximately 28 volts on pins 1 and 2 or at the wire connections located on the rear of the transport carrier motor If voltage is incorrect replace the system board If voltage is correct check the motor for shorts 2 Carrier Transport Motor Check the motor for binds or loose motor pulley A noisy or chattering motor or a motor that fails to turn can be caused by An open or short in the motor An open or short in the motor driver on the system board A bind in the carrier transport mechanism With the carrier transport motor cable J4 disconnected from the system board check for 0 to 10 ohms between the following pins on the motor J4 1 and J4 2 If the readings are incorrect replace the print engine Go to the Print Engine Removal on page 4 11 3 Carrier Guide Rod Clean the carrier rod Note Lubricate the rod and the carrier rod bearing surfaces with grease P N 99A0394 2 6 Service Manual
25. moval ss dai 4 11 ASF Module sn he ea 4 12 System Board Removal sx anna 4 12 Gamer Removal ada tae 4 13 Encoder Sp Removal suga nn na 4 13 Maintenance Station Removal 4 14 Belt Idler Pulley Assembly Print Engine Removal 4 14 Connector Locations ara ea ama ed 5 1 Preventive Maintenance 6 1 Lubrication and 6 1 Parts Catalog zungen 7 1 Assembly 7 2 Assembly 2 Paper Feed Frame and Carrier Transport 7 6 2 7 8 1 1 iv Service Manual 4402 001 Safety Information e This product is designed tested and approved to meet strict global safety standards with the use of specific Lexmark components The safety features of some parts may not always be obvious Lexmark is not responsible for the use of other replacement paris The maintenance information for this product has been prepared for use by a professional service person and is not intended to be used by others There may be an increased risk of electric shock and personal injury during disassembly and servicing of this product Professional service personnel should understand this and take necessary precautions Consignes de S curit Ce produit a t concu test et approuv pour respe
26. n Table Symptom Action Not able to print Test Page Scanner Problems Check the USB cable and system board cable connections If okay replace system board Go to the System Board Removal on page 4 12 Symptom Action CCD does not move Lamp does not light Go to the CCD Module Assembly Service Check on page 2 8 Go to the Gear Train Assembly Service Check on page 2 9 Scanned images are faded or colors are dull blurry or fuzzy Images are slanted or crooked and the straight lines in the image appear to be jagged or uneven Blank copies Go to the Scan Copy Quality Service Check on page 2 17 2 4 Service Manual 4402 001 Paper Feed Problems Symptom Action Fails to pick paper Go to the Paper Feed Service Picks more than one sheet of Check on page 2 11 paper Picks paper but fails to feed Paper jams Paper fails to exit Noisy paper feed Envelopes fail to feed Go to the Paper Feed Service Check on page 2 11 Paper skews Go to the Paper Path Service Check on page 2 13 Power Problems Symptom Action No power in machine motors do Go to the Power Service Check not operate on page 2 14 Print Quality Problems Symptom Action Voids in characters Go to the Print Quality Service Light print Check on page 2 15 Prints off the page Fuzzy pr
27. n place with plastic latches The latches break easily release them carefully To remove such parts press the hook end of the latch away from the part to which it is latched Never apply excessive force when releasing the hook 4 2 Service Manual 4402 001 Scanner Lid Assembly Removal 1 Open the lid 2 Lift and remove Rear Cover Removal 1 Remove two screws A from the rear cover 2 Depress two latches on the bottom of the rear cover 3 Lift the rear cover and remove A Repair Information 4 3 4402 001 Operator Panel Removal Remove the scanner lid Remove the rear cover Disconnect the operator panel cable from the system board Depress two latches on the left side of the operator panel Lift the operator panel and remove gu oM Top Housing Assembly Removal Remove the scanner lid Remove the rear cover Disconnect the operator panel cable from the system board Remove the operator panel Remove two screws from the top housing Lift the right side of the housing Remove the top housing assembly NOU RC Paper Support Removal 1 Open the paper support 2 Depress the paper support at the hinge 3 Remove the paper support 4 4 Service Manual 4402 001 CCD Module Assembly Removal Remove the rear cover Disconnect the CCD cable from the system board Remove the top housing assembly Depress the shaft retainer A Lift and remove the shaft Remove the
28. r approximately 5 ohms between pins 3 and 4 If the reading is incorrect replace the print engine Go to the Print Engine Removal on page 4 11 If the reading is correct replace the system board Go to the System Board Removal on page 4 12 Diagnostic Information 2 11 4402 001 FRU Action 2 Paper Feed Motor A noisy or chattering motor or a motor that fails to turn can be caused by An open or short in the motor An open or short in the motor driver on the system board A bind in the paper feed mechanism With the paper feed motor cable J3 disconnected from the system board check for approximately 5 ohms between the following pins on the motor Pin 3 to Pin 4 the readings are incorrect replace the print engine Go to the Print Engine Removal on page 4 11 Although the paper feeds in a forward direction only the paper feed motor turns in two directions If the paper feed motor turns in one direction only replace the system board Go to the System Board Removal on page 4 12 Binds in the paper feed motor or gear train can cause intermittent false paper jam errors Remove the paper feed motor and check the shaft for binds Also check for a loose or worn motor gear 3 Auto Sheet Feeder Assembly Check the pick roller for wear 4 Mid Frame Assembly Check the following for wear Small Feed rollers Large Feed roller Exit roller Star
29. se Service Manual Lexmark X73 Scan Print Copy 4402 001 e Table of Contents e Start Diagnostics e Safety and Notices e Trademarks e Index e Manuals Menu LEXMARK 4402 001 Edition September 2002 The following paragraph does not apply to any country where such provisions are inconsistent with local law LEXMARK INTERNATIONAL INC PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This publication could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in later editions Improvements or changes in the products or the programs described may be made at any time Comments may be addressed to Lexmark International Inc Department D22A 032 2 740 West New Circle Road Lexington Kentucky 40550 U S A or e mail at ServicelnfoAndTraining Lexmark com Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you You can purchase additional copies of publications related to this product by calling 1 800 553 9727 In other countries contact your point of purchase Lexm
30. stado e aprovado para satisfazer os padr es globais de seguran a na utiliza o de componentes espec ficos da Lexmark As fun es de seguran a de alguns dos componentes podem n o ser sempre bvias A Lexmark n o respons vel pela utiliza o de outros componentes de substitui o As informa es de seguran a relativas a este produto destinam se a profissionais destes servi os e n o devem ser utilizadas por outras pessoas Risco de choques el ctricos e ferimentos graves durante a desmontagem e manuten o deste produto Os profissionais destes servi os devem estar avisados deste facto e tomar os cuidados necess rios Safety Information vii 4402 001 Informaci de Seguretat Aquest producte est dissenyat comprovat i aprovat per tal d acomplir les estrictes normes de seguretat globals amb la utililitzaci de components espec fics de Lexmark Les caracter stiques de seguretat d algunes peces pot ser que no sempre siguin bvies Lexmark no es responsabilitza de l us d altres peces de recanvi e La informaci pel manteniment d aquest producte est orientada exclusivament a professionals i no est destinada a ning que no ho sigui e El risc de xoc el ctric i de danys personals pot augmentar durant el proc s de desmuntatge i de servei d aquest producte El personal professional ha d estar ne assabentat i prendre les mesures convenients viii Service Manual 4402 001 ro A 0
31. stalling the carrier Encoder Strip Removal 1 2 3 Remove the carrier assembly Depress the encoder strip clip Remove the encoder strip Repair Information 4 13 4402 001 Maintenance Station Removal Remove the middle frame assembly Remove the print engine Depress the two clips Remove the maintenance station A Belt Idler Pulley Assembly Print Engine Removal Remove the middle frame Slide the carrier to the left Loosen the belt tensioner adjuster screw Depress the belt tensioner and remove the belt from the pulley Depress the latch Slide the belt tensioner to the right and remove 4 14 Service Manual 4402 001 5 Connector Locations USB Conn Power J7 Conn 1 46 O 1 J9 Units Description J2 Printhead Cable J3 Paper Feed Motor J4 Carrier Transport Motor J5 Scanner Motor J6 Operator Panel J7 CCD Module J9 Cover Sensor PS1 End of Forms Sensor Connector Locations 5 1 4402 001 5 2 Service Manual 4402 001 6 Preventive Maintenance This chapter contains the lubrication specifications Follow these recommendations to prevent problems and maintain optimum performance
32. the image appear to be jagged or uneven Check the lighter darker settings to see if it is correct There are two ways to make the adjustment From the Lexmark Scan and Copy Control program Check to see if there is any dust debris on the glass This may cause a poor image Check the press plate on the scan lid for any dust or debris Blank copies If there are blank copies make sure the original document is facing down on the scanner bed Check the print cartridges to see if they need to be cleaned or replaced Check the paper type and copy quality settings on the operator panel or Lexmark Scan and Copy Control program Diagnostic Information 2 17 4402 001 2 18 Service Manual 4402 001 3 Diagnostic Aids Test Page This test prints the test page To run a complete test page of black and color patterns be sure the printhead cartridges are in good condition To enter the test 1 Open the access cover 2 Install known good black print cartridge in the right side of the carrier and a good color print cartridge in the left side 3 Close the access cover Install paper in the sheet feeder 5 Press and hold the paper feed button while pressing the power button and releasing it 6 Paper feeds into the printer 7 The test page prints The test page consists of three color bars nozzle purge pattern black purge pattern black nozzle purge pattern and heater checks
33. ys Board System Sensor Access Cover Power Supply LV 100 127 Power Supply HV 220 240 Power Supply Japan 100V Parts Catalog 7 9 4402 001 7 10 Service Manual 4403 001 Index A Abbreviations 1 4 Adjustments 4 2 Black Copy button 1 3 Button Black Copy 1 3 Color Copy 1 3 Paper Feed 1 3 Power 1 3 Scan 1 3 Scan To 1 3 Scan To E mail 1 3 Scan To Fax 1 3 Setup 1 3 C Color Copy button 1 3 Connector Locations 5 1 E ESD Sensitive Parts 4 1 L Lubrication Specifications 6 1 Maintenance Approach 1 4 O Operator Panel 1 3 Paper Feed button 1 3 Paris Catalog 7 1 Carrier Transport 7 6 Covers 7 2 Electronics 7 8 Frame 7 6 Paper Feed 7 6 Plastic Latches 4 2 Power button 1 3 Power Consumption 1 1 1 3 Power On Self Test Sequence 2 1 Symptom Table 2 2 Problems Carrier Transport 2 3 Maintenance Station 2 3 Operator Panel 2 3 Paper Feed 2 5 Power 2 5 Print Quality 2 5 Scanner 2 4 R Removals Access Cover 4 7 Access Cover Sensor 4 6 ASF Module 4 12 Belt Idler Pulley Assembly 4 14 Carrier 4 13 CCD Module Assembly 4 5 Encoder Strip 4 13 Gear Train Assembly 4 6 Left Cover 4 8 Maintenance Station 4 14 Middle Frame 4 9 Operator Panel 4 4 Paper Support 4 4 Print Engine 4 11 Rear Cover 4 3 Right Cover 4 7 Scanner Lid Assembly 4 3 System Board 4 12 Top Housing Assembly 4 4 5 Safety Information 1 Scan button 1 3 Scan To button 1 3 Scan To E mail button 1 3
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