Lexmark X734DE Service Manual Download Page 1

Page: 1 / 626

Lexmark

™

X734de, X736de,

X738de, X738dte MFP

7526

• Table of contents

• Start diagnostics

• Safety and notices

• Trademarks

• Index

Lexmark and Lexmark with diamond design are
trademarks of Lexmark International, Inc., registered
in the United States and/or other countries.

Revised: June 25, 2013

Summary of Contents for X734DE

Page 1: ...P 7526 Table of contents Start diagnostics Safety and notices Trademarks Index Lexmark and Lexmark with diamond design are trademarks of Lexmark International Inc registered in the United States and o...

Page 2: ...curring any obligation to you References in this publication to products programs or services do not imply that the manufacturer intends to make these available in all countries in which it operates A...

Page 3: ...ired for service 1 15 Acronyms 1 15 Diagnostic information 2 1 Start 2 1 Operator panel and menus 2 2 Operator panel 2 2 Buttons icons and light description 2 2 Administrative Menu 2 4 Power on self t...

Page 4: ...2 Paper Jam service check 2 84 244 03 244 11 Paper Jam service check 2 85 244 05 Paper Jam service check 2 86 244 10 Paper Jam service check 2 87 244 17 Paper Jam service check 2 88 244 26 Paper Jam s...

Page 5: ...Transfer roll error service check 2 131 950 00 950 29 EPROM mismatch failure 2 133 956 xx System board failure service check 2 134 5 V interlock switch service check 2 134 24 V interlock switch remova...

Page 6: ...n for Prompts 3 43 Duplex Gloss 3 43 Jobs on Disk 3 43 Disk Encryption 3 44 Wipe Disk 3 45 Duplex Gloss 3 45 Font Sharpening 3 46 Require Standby 3 46 LES Applications 3 46 Key Repeat Initial Delay 3...

Page 7: ...ide assembly removal 4 86 Electrophotographic EP drive assembly removal 4 89 Fax modem removal 4 102 Front door assembly removal 4 103 Front door assembly front cable left removal 4 106 Front door ass...

Page 8: ...sembly removal 4 251 ADF skew sensor card removal 4 253 ADF closed cover flag removal 4 254 ADF exit sensor with cable removal 4 255 ADF hinge left and right removal 4 256 ADF motor gear train removal...

Page 9: ...e ADF parts 6 3 Cleaning the printhead lenses 6 5 Spare ADF supplies 6 5 Parts catalog 7 1 How to use this parts catalog 7 1 Assembly 1 Covers printer 7 2 Assembly 2 Front 7 4 Assembly 3 Right 7 6 Ass...

Page 10: ...x Service Manual 7526 Go Back Previous Next...

Page 11: ...rlich betrachtet Der Drucker enth lt im Inneren einen Laser der Klasse IIIb 3b AlGaAs der sichtbare Strahlung im Wellenl ngenbereich von 770 bis 800 Nanometern abgibt Dieser befindet sich in einer Dru...

Page 12: ...ante el funcionamiento normal mantenimiento del usuario o condici n de servicio prescrita Declara o sobre Laser Este produto foi certificado nos EUA por estar em conformidade com os requisitos do DHHS...

Page 13: ...ngde p 770 800 nanometer indkapslet i en ikke servicerbar printhovedsamling Lasersystemet og printeren er udviklet p en s dan m de at der ikke er en direkte laserstr ling der overskrider Klasse I niv...

Page 14: ...eholder en intern AlGaAs laser av klasse IIIb 3b som produserer synlig str ling i b lgelender p 770 800 nanometer i en ikke reparerbar skrivehodeenhet Lasersystemet og skriveren er utformet slik at me...

Page 15: ...Notices and safety information xv 7526 Go Back Previous Next...

Page 16: ...xvi Service Manual 7526 Go Back Previous Next...

Page 17: ...nance 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 ATTENTION Ce sym...

Page 18: ...nformaci 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 desmo...

Page 19: ...aquest producte est orientada exclusivament a professionals i no est destinada a ning que no ho sigui El risc de xoc el ctric i de danys personals pot augmentar durant el proc s de desmuntatge i de s...

Page 20: ...ndividual FRUs Appendix A contains service tips and information Appendix B contains representative print samples Change history Revision date Updates 2013 06 25 Added CPU fan removals and parts catalo...

Page 21: ...evious Click to move the document view backward by one page Next Click to move the document view forward by one page Go Back Click to return to the last page viewed CAUTION A caution identifies someth...

Page 22: ...xxii Service Manual 7526 Go Back Previous Next...

Page 23: ...k X736de 7526 436 4 in 1 Color MFP Lexmark X736de 7526 476 4 in 1 Color MFP with fax modem Lexmark X736de 7526 496 4 in 1 Color MFP with fax modem Lexmark X738de 7526 636 4 in 1 Color MFP Lexmark X738...

Page 24: ...alty Media Drawer This optional input source installs beneath the printer and it holds approximately 550 sheets of 20 lb paper or 85 standard envelopes Memory options Additional memory card The memory...

Page 25: ...or the multipurpose feeder Number Description Clearance 1 Rear 100 mm 3 9 in 2 Right side 100 mm 3 9 in 3 Front 483 mm 19 in 4 Left side 100 mm 3 9 5 Above 394 mm 15 5 in Flatbed scanner Scanner type...

Page 26: ...um 8 5 in x 14 in 216 mm x 355 mm SEF Minimum 4 1 in x 5 8 in 105 mm x 148 mm SEF Printer Print technology Belt fuser Paper feed orientation Short Edge Fed SEF Fax Modem Built in Group 3 compatible fu...

Page 27: ...ure Operating 22 8 C 73 0 F Maximum Web Bulb Temperature Power off 26 7 C 80 1 F Maximum Altitude 0 3 048 meters 10 000 ft Ambient Operating Environment 15 6 to 32 2 C 60 to 90 F and 8 to 80 RH Shippi...

Page 28: ...V ac power converter with the low voltage printer is not recommended Using an inverter 12 V dc to 120 V ac for example to power the printer is not recommended Only duplex models are ENERGY STAR certi...

Page 29: ...while Quiet Mode significantly reduces acoustics For more information refer to the Users Guide Operating mode Quiet Mode Off Quiet Mode On Measurement Sound pressure level dBA Sound power level Bels S...

Page 30: ...ted Synthetic and thermal papers A5 paper less than 80 g m2 21 lb Recycled paper less than 75 g m2 20 lb Preprinted papers requiring a high degree of registration Recycled paper less than 80 g m2 21 l...

Page 31: ...its have been engineered to work very well in laser printers despite surface texture Before using these types of paper consult your paper supplier Suitable sheet to sheet coefficient of friction 0 4 0...

Page 32: ...50 Sheet Drawer sheets 550 550 High capacity input tray HCIT sheets 2 000 2 000 Specialty Media Drawer sheets 550 or 85 envelopes 550 or 85 envelopes Maximum number of high capacity input tray must be...

Page 33: ...8 5 x 11 in Legal 8 5 x 14 in 3 x 51 4 x 51 Statement 5 5 x 8 5 in Executive 7 25 x 10 5 in Folio 8 5 x 13 in Universalb width x length 76 2 x 123 8 mm 3 x 4 9 in to 215 9 8 5 x 14 in 148 x 210 mm 5...

Page 34: ...0 Envelope 4 13 x 9 5 in 11 Envelope 4 5 x 10 4 ind 12 Envelope 4 8 x 11 ind a These sizes are accessible using Universal Size setting b Lower feed reliability may be encountered when feeding non stan...

Page 35: ...Sheffield points produces the best print quality Moisture content The amount of moisture in paper affects both print quality and the ability of the printer to feed the paper correctly Leave paper in...

Page 36: ...apers thermal papers Rough edged rough or heavily textured surface papers or curled papers Recycled papers that fail EN12281 2002 European Paper weighing less than 60 g m2 16 lb Multiple part forms or...

Page 37: ...ewdriver magnetic 2 Phillips screwdriver magnetic short blade 7 32 inch 5 5 mm open end wrench 4 0 mm Allen wrench HCIT removall 7 0 mm nut driver Needlenose pliers Diagonal side cutters Spring hook F...

Page 38: ...MROM Masked Read Only Memory MS Microswitch NVRAM Nonvolatile Random Access Memory OEM Original Equipment Manufacturer OPT Optical Sensor PC Photoconductor pel Picture element POR Power On Reset POST...

Page 39: ...ed by a period and additional numbers in the format XXX YY In most cases five digits are shown Paper jam messages 2xx xx User attendance messages that indicate a paper jam these have been included wit...

Page 40: ...g the button has no effect Stop Stops all printer activity A list of options is offered once Stopped appears on the display Home Press Home to return to the home screen Indicator light The two toned l...

Page 41: ...on message and returns to the menu item Note When a new setting is saved as the user default setting it remains in effect until new settings are saved or until factory defaults are restored Settings c...

Page 42: ...evice Statistics Finishing Menu Magenta Cartridge Configure MP Network Setup Page Quality Menu Yellow Cartridge Substitute Size Network x Setup Page Utilities Menu Black Cartridge Paper Texture Wirele...

Page 43: ...tor panel displays system information For example 9 The fuser lamp turns on The fuser takes longer to warm up from a cold start than a warm start 10 The operator panel LED starts blinking 11 A clock f...

Page 44: ...and replace the broken plastic spring hook Scanner lid does not close completely will not stay open or makes noise when opening and closing Go to ADF hinge left and right removal on page 4 256 Top ac...

Page 45: ...rtical banding on page 2 157 White gapping Go to Print quality white gapping on page 4 157 Small font text looks fuzzy around the edges Check the flatbed air filter If noticeable dirt or particles are...

Page 46: ...ed the printer adds this message Load source Custom String Load paper in the indicated source touch Continue Additional messages may include Show Me the printer will present instructions Cancel Job th...

Page 47: ...emove Packaging Material If packaging material is detected by the printer Check all areas Check area name or Check number of areas may appear Touch Select to continue Restore Held Jobs Go Stop If the...

Page 48: ...rly connect the cable if not connected properly Replace the cable if damaged If the problem still exists replace the system board See System board removal on page 4 165 34 Short Paper Touch Continue t...

Page 49: ...New There is insufficient memory to perform the Flash Memory Defragment operation The user can Delete font macros and other data in memory Install additional printer memory 38 Memory Full The followin...

Page 50: ...does not fix the problem replace the system board See System board removal on page 4 165 56 Standard Parallel Port Disabled Not in IRs Touch Continue to clear the message The printer discards any data...

Page 51: ...operations that require a hard disk If this does not fix the problem replace the system board See System board removal on page 4 165 62 Disk full Touch Continue to clear the message and continue proce...

Page 52: ...cover removal on page 4 40 Check the cable in connector JFUSER1 A for proper connection to the system board the cable for pinch points and the cable or the connector for any other damage If the conne...

Page 53: ...motor error Go to 147 xx 920 01 Motor aligner error service check on page 2 55 83 xx Transfer Module Life Warning Touch Continue to clear the message and continue printing Order a replacement transfe...

Page 54: ...the arm use a screwdriver to ease the camshaft follower back into the groove You need to press down to snap it into position Check the high voltage contacts path especially the finger on the specified...

Page 55: ...Low Show Me View Supplies and Tell Me More displays additional information Replace the specified toner cartridge Touch Continue to clear the message and continue printing If the problem persists repla...

Page 56: ...11 xx 112 xx 113 xx and 114 xx Printhead error service check on page 2 42 120 00 120 21 Fuser Error An error has occurred in the fuser Remove and reseat the fuser See Fuser assembly removal on page 4...

Page 57: ...ion tray 2 service check on page 2 59 161 01 161 06 Motor Error Tray 2 feed motor failed POR the printer If the message persists go to 160 xx 161 xx Motor Error option tray 2 service check on page 2 5...

Page 58: ...tray Properly set media restraints in the paper tray Check the pick tires and replace if worn If the message persists go to 200 11 250 03 Paper Jam error service check on page 2 64 200 17 Input senso...

Page 59: ...n Faulty fuser Faulty system board Clear away anything in the paper path that might cause the paper to jam Ensure proper media is set for the type of paper used Fan media and stack flat in the tray Pr...

Page 60: ...ight cause the paper to jam If clearing a paper jam does not fix the problem go to Bubble sensor service check on page 2 141 201 21 Cartridge motor 1 top or cartridge motor 2 middle has stalled Possib...

Page 61: ...functioning properly Go to Exit sensor service check on page 2 145 202 17 Exit sensor is made when the printer powers up or covers are closed Possible causes Damaged paper exit sensor or paper exit se...

Page 62: ...t sensor service check on page 2 145 The duplex motor may not be functioning properly Go to 146 xx 148 xx Motor MPF duplex error service check on page 2 53 203 20 During duplex the page made the input...

Page 63: ...dia and stack it flat in the tray or multipurpose feeder Properly set media restraints in paper tray Check the pick tires and replace if worn If the problem persists go to 140 xx 920 02 Autocomp tray...

Page 64: ...2 Fan media and then stack flat in tray 2 Properly set the media restraints in tray 2 If the problem persists go to 242 03 242 11 Paper Jam service check on page 2 73 242 17 Tray 2 detected a jam from...

Page 65: ...incorrect media restraint setting Tray 3 paper pick mechanism failure Loading card stock from the special media tray above the till line Ensure proper media is set for the type of paper used in tray 3...

Page 66: ...s a paper tray 3 assembly failure Clear away anything in the paper path that might cause the paper to jam Reseat option tray 3 If the problem persists go to 243 27 Paper Jam service check on page 2 83...

Page 67: ...sure the proper media is set for the type of paper used in tray 4 Fan media and then stack flat in tray 4 Properly set the media restraints in tray 4 If the problem persists go to 244 03 244 11 Paper...

Page 68: ...5 paper pick mechanism Loading card stock from the special media tray above the fill line Ensure proper media is set for the type of paper used in tray 5 Fan media and stack flat in tray 5 Properly s...

Page 69: ...ng from the multipurpose feeder the input sensor is not made Possible causes Incorrect media setting Incorrect paper loading Incorrect media restraint setting Multipurpose feeder pick mechanism failur...

Page 70: ...2 00 Scanner ADF cover open jam Possible causes ADF cover sensor flag ADF cover sensor ADF improper grounding of the feed shaft to skew shaft or feed shaft to ADF upper cover Remove all media present...

Page 71: ...ons when the progress bar displays 2 Touch Disable Scanner in the Config Menu 3 Touch the left or right arrows to select Enabled default Disabled or ADF Disabled 4 Touch Submit Submitting changes is d...

Page 72: ...2 102 846 00 Scanner Failure Front calibration strip unusable Go to 846 xx Front calibration strip error service check on page 2 103 846 02 Scanner Failure Front calibration strip too far left Go to...

Page 73: ...ists replace the system board See System board removal on page 4 165 910 xx Engine Software Error RIP software error interface violation POR the printer If the error persists replace the system board...

Page 74: ...check on page 2 115 920 13 POST Error Cartridge motor 1 top not connected POR the printer If the error message persists go to 920 13 POST error service check on page 2 115 920 14 POST Error Cartridge...

Page 75: ...Go to 920 27 920 28 920 29 POST power on self test service check on page 2 128 920 28 POST Error Option type unknown Go to 920 27 920 28 920 29 POST power on self test service check on page 2 128 920...

Page 76: ...4 Transfer Roll Black transfer roll has failed POR the printer If the error message persists go to 945 xx 947 xx Transfer roll error service check on page 2 131 947 01 Transfer Roll Yellow transfer ro...

Page 77: ...essage persists replace the system board See System board removal on page 4 165 958 01 958 99 Memory Failure Processor failure POR the printer If the error message persists replace the system board Se...

Page 78: ...removal on page 4 165 981 00 981 99 device Communications Error Protocol violation by specified device POR the printer If the error persists replace the system board See System board removal on page...

Page 79: ...moval on page 4 165 Go to step 4 4 Perform the printhead verification to check whether the new printhead will solve the problem See Printhead verification on page 3 52 Perform the Mirror Motor Test Br...

Page 80: ...fuse blown Replace the system board See System board removal on page 4 165 Go to step 4 4 Perform the printhead verification to check whether the new printhead solves the problem See Printhead verifi...

Page 81: ...et Go to step 2 Set the switch for the proper country voltage 2 1 Remove the fuser See Fuser assembly removal on page 4 114 2 Check the AC and DC autoconnects on both the fuser and the MFP for damage...

Page 82: ...o to step 7 6 Measure the resistance across fuse F6 on the system board Is the fuse blown Replace the system board See System board removal on page 4 165 Go to step 8 Step Questions actions Yes No 1 J...

Page 83: ...moval on page 4 117 8 Check for continuity between the following pins of the AC autoconnect and the pins of the connector that connects to the LVPS Is continuity present Replace the system board See S...

Page 84: ...ress and hold 3 and 6 turn the MFP on and then release the buttons when the progress bar displays 3 Touch Print Test 4 Touch Tray 1 5 Touch Single Did the new pick motor turn before the feed error occ...

Page 85: ...fuser cable removal on page 4 70 Go to step 2 2 Remove the right cover See Right cover removal on page 4 41 Check the cartridge motor 1 fuser motor cable for proper connection to the EP drive assembly...

Page 86: ...able for pinch points and for the cable or connector for any other damage Is the cable damaged Replace the cartridge motor 1 fuser cable See Cartridge motor 1 fuser cable removal on page 4 70 Go to st...

Page 87: ...Go to step 3 3 Measure the resistance across fuse F7 on the system board Is the fuse blown Replace the system board See System board removal on page 4 165 Replace the EP drive assembly See Electrophot...

Page 88: ...tor 2 3 cable See Cartridge motor 2 3 cable removal on page 4 73 Go to step 2 2 Remove the right cover See Right cover removal on page 4 41 Check the cartridge motor 2 3 cable for proper connection to...

Page 89: ...for cable pinch points and for any other damage to the cable or connector Is the cable damaged Replace cartridge motor 2 3 cable See Cartridge motor 2 3 cable removal on page 4 73 Go to step 2 Step Qu...

Page 90: ...rd Is the fuse blown Replace the system board See System board removal on page 4 165 Replace the EP drive assembly See Electrophotographic EP drive assembly removal on page 4 89 Step Questions actions...

Page 91: ...ame cover removal on page 4 40 Check the cable in connector JDX1 MP feeder duplex motor cable for proper connection to the system board the cable for pinch points and the cable or connector for any ot...

Page 92: ...place the MPF duplex gear assembly See Multipurpose feeder MPF duplex gear and housing removal on page 4 128 6 Measure the resistance across fuse F5 A on the system board Is the fuse blown Replace the...

Page 93: ...hanism See Paper pick mechanism assembly removal on page 4 137 Go to step 3 3 1 Disconnect the cable in connector JFDPCK1 on the system board and then plug in the cable for the new paper pick mechanis...

Page 94: ...o to step 2 2 Remove the right cover See Right cover removal on page 4 41 Check the motor driver cable in connector JDVR1 on the system board for proper connection for cable pinch points and for any o...

Page 95: ...193 Go to step 4 4 Measure the resistance across fuses F12 A and F13 B on the system board Is either fuse blown Replace the system board See System board removal on page 4 165 Go to step 5 5 Visually...

Page 96: ...or Reverse See Motor tests on page 3 12 Did the COD motor pass the test Replace the COD assembly See Color on demand assembly removal on page 4 75 Replace the system board See System board removal on...

Page 97: ...r any other damage to the cable or connector Is the cable damaged Replace the option cable See Option cable removal on page 4 135 Go to step 3 3 Remove the right cover See Right cover removal on page...

Page 98: ...for any other damage to the cable or connector Is the cable damaged Replace the option cable See Option cable removal on page 4 135 Go to step 3 3 Remove the right cover See Right cover removal on pa...

Page 99: ...any other damage to the cable or connector Is the cable damaged Replace the option cable See Option cable removal on page 4 135 Go to step 3 3 Remove the right cover See Right cover removal on page 4...

Page 100: ...for any other damage to the cable or connector Is the cable damaged Replace the option cable See Option cable removal on page 4 135 Go to step 3 3 Remove the right cover See Right cover removal on pag...

Page 101: ...ver removal on page 4 40 Check the option cable in connector JOPT1 A on the system board for proper connection for cable pinch points and for any other damage to the cable or connector Is the cable da...

Page 102: ...91 2 1 Disconnect the cable in connector JFDPCK1 and connect the cables for the new paper pick mechanisms 2 Bring the printer up in Diagnostics Menu turn the multifunction printer off press and hold 3...

Page 103: ...lays Perform the Align Motor Test See Motor tests on page 3 12 Can you hear the align motor run Go to step 3 Replace the paper pick mechanism See Paper pick mechanism assembly removal on page 4 137 3...

Page 104: ...4 117 Go to step 7 7 1 POR the printer 2 Place a voltmeter between pin 8 and pin 6 on the JFUSER1 connector 3 Does the meter read 5 V dc Go to step 8 Replace the system board See System board removal...

Page 105: ...e fuser 2 Bring the printer up in the Diagnostics menu turn off the printer press and hold 3 and 6 turn on the printer 3 Touch SENSOR TESTS 4 Touch Dynamic Sensors 5 Touch Fuser Exit 6 Open the front...

Page 106: ...4 191 2 Turn the printer off and then remove the fuser See Fuser assembly removal on page 4 114 Is the exit sensor flag damaged Replace the fuser See Fuser assembly removal on page 4 114 Go to step 3...

Page 107: ...n 6 Does the meter read 5 V dc Go to step 7 Replace the system board See System board removal on page 4 165 7 Place a voltmeter between the fuser DC autoconnect pin 8 and ground pin 6 Does the meter r...

Page 108: ...front door assembly See Front door assembly removal on page 4 103 Go to step 2 2 Turn the printer off and then remove the rear frame cover See Rear frame cover removal on page 4 40 Check the MPF dupl...

Page 109: ...See Multipurpose feeder MPF duplex gear and housing removal on page 4 128 Go to step 6 6 Replace the MPF duplex motor assembly See Multipurpose feeder MPF duplex motor assembly removal on page 4 130...

Page 110: ...n cable See Option cable removal on page 4 135 Go to step 3 3 Carefully lift the printer off the option and lay the printer on its back Check the option connector for damage Is the option cable connec...

Page 111: ...3 Turn the transport belt gear clockwise Did the transport belt move Go to step 3 Replace the transport belt See Transfer module removal on page 4 191 3 1 Bring the printer up in Diagnostics Menu tur...

Page 112: ...ter off 2 Remove the rear frame cover See Rear frame cover removal on page 4 40 3 Remove the right cover See Right cover removal on page 4 41 Check the cable in connector JOPT1 A for proper connection...

Page 113: ...r clear Problem resolved Replace the system board See System board removal on page 4 165 7 Replace the HCIT top plate See Top plate assembly removal on page 4 303 Problem resolved Replace the system b...

Page 114: ...le removal on page 4 135 Go to step 3 3 Carefully lift the printer off the option and lay the printer on its back Check the option connector for damage Is the option cable connector or cable damaged R...

Page 115: ...Yes No 1 1 Bring the printer up in Diagnostics Menu turn the multifunction printer off press and hold 3 and 6 turn the MFP on and then release the buttons when the progress bar displays 2 Touch PRINT...

Page 116: ...on Step Questions actions Yes No 1 Has paper been fed from an input option before Go to step 4 Go to step 2 2 1 Turn the printer off 2 Remove the rear frame cover See Rear frame cover removal on page...

Page 117: ...ace the system board See System board removal on page 4 165 Step Questions actions Yes No 1 1 Bring the printer up in Diagnostics Menu turn the multifunction printer off press and hold 3 and 6 turn th...

Page 118: ...1 Turn the printer off 2 Remove the rear frame cover See Rear frame cover removal on page 4 40 3 Remove the right cover See Right cover removal on page 4 41 4 Check the connector at JOPT1 on the syst...

Page 119: ...Does the error clear Problem resolved Replace the system board See System board removal on page 4 165 7 Replace the high capacity input tray 2 000 sheet feeder Problem resolved Replace the system boar...

Page 120: ...le removal on page 4 135 Go to step 3 3 Carefully lift the printer off the option and lay the printer on its back Check the option connector for damage Is the option cable connector or cable damaged R...

Page 121: ...Step Questions actions Yes No 1 1 Bring the printer up in Diagnostics Menu turn the multifunction printer off press and hold 3 and 6 turn the MFP on and then release the buttons when the progress bar...

Page 122: ...e See Option cable removal on page 4 135 Go to step 3 3 Carefully lift the printer off the options and lay the printer on its back Check the option connector for damage Is the connector damaged Replac...

Page 123: ...er off press and hold 3 and 6 turn the MFP on and then release the buttons when the progress bar displays 2 Touch PRINT TESTS 3 Select a tray below tray 4 4 Touch Single Did the page print correctly P...

Page 124: ...3 1 Turn the printer off 2 Remove the rear frame cover See Rear frame cover removal on page 4 40 3 Remove the right cover See Right cover removal on page 4 41 4 Check the connector at JOPT1 on the sys...

Page 125: ...Does the error clear Problem resolved Replace the system board See System board removal on page 4 165 7 Replace the high capacity input tray 2 000 sheet feeder Problem resolved Replace the system boar...

Page 126: ...le removal on page 4 135 Go to step 3 3 Carefully lift the printer off the option and lay the printer on its back Check the option connector for damage Is the option cable connector or cable damaged R...

Page 127: ...on Step Questions actions Yes No 1 1 Bring the printer up in Diagnostics Menu turn the multifunction printer off press and hold 3 and 6 turn the MFP on and then release the buttons when the progress b...

Page 128: ...e See Option cable removal on page 4 135 Go to step 3 3 Carefully lift the printer off the options and lay the printer on its back Check the option connector for damage Is the connector damaged Replac...

Page 129: ...r off press and hold 3 and 6 turn the MFP on and then release the buttons when the progress bar displays 2 Select PRINT TESTS 3 Select a tray below tray 3 4 Select Single Did the page print correctly...

Page 130: ...Remove the rear frame cover See Rear frame cover removal on page 4 40 3 Remove the right cover See Right cover removal on page 4 41 4 Check the connector at JOPT1 on the system board for proper conne...

Page 131: ...Does the error clear Problem resolved Replace the system board See System board removal on page 4 165 7 Replace the high capacity input tray 2 000 sheet feeder Problem resolved Replace the system boa...

Page 132: ...le removal on page 4 135 Go to step 3 3 Carefully lift the printer off the option and lay the printer on its back Check the option connector for damage Is the option cable connector or cable damaged R...

Page 133: ...pacity input tray 2 000 sheet feeder Replace the HCIT elevator up sensor See HCIT elevator motor with sensor removal on page 4 296 Replace the complete tray 5 option Step Questions actions Yes No 1 Is...

Page 134: ...ted correctly Replace the front case assembly See ADF case assembly removal on page 4 251 Reseat the cable Step Questions actions Yes No 1 Open the ADF cover Check the ADF cover sensor flag A for dama...

Page 135: ...de cover removal on page 4 232 For the ADF front side cover see ADF front side cover removal on page 4 230 Go to step 4 4 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Close...

Page 136: ...nce between the feed shaft and the skew shaft Does resistance measure 0 ohms Go to step 6 Replace the steel discharge brush See ESD brush removal on page 4 269 6 Tighten the screws on the grounding ca...

Page 137: ...See ADF motor side cover removal on page 4 232 Check the cabling scanner MDC card to scanner ICC card A Is the cable damaged Replace the ICC card See Scanner ICC card removal on page 4 283 Replace the...

Page 138: ...ends of the cable A seated Go to step 2 Reseat the scanner flex cable 2 Is the scanner flex cable damaged Replace the scanner flex cable Go to step 3 3 Replace the scanner MDC card See Scanner ICC ca...

Page 139: ...check Step Questions actions Yes No 1 Check the ADF cable 1 Remove the left cover See Left cover removal on page 4 23 2 Remove the scanner rear cover See Scanner rear cover removal on page 4 245 Is t...

Page 140: ...es A and B securely connected Go to step 3 Reseat the flatbed CCD cable 3 Are the cables damaged Replace the flatbed scanner See Flatbed scanner removal on page 4 279 Replace the flatbed CC carrier mo...

Page 141: ...possible determine whether a PostScript or PCL file was sent to the device when the error occured Ask the customer which Lexmark Solutions applications are installed on the device Step Questions acti...

Page 142: ...xx error reoccur Note Before performing this step write down this information about the file being sent to the printer Application used Operating system Driver type File type PCL PostScript XPS etc G...

Page 143: ...option Restart the device Does the 900 xx error reoccur Go to step 24 Go to step 23 23 Run a job to test the option Does the 900 xx error reoccur Go to step 24 Go to step 26 24 Upgrade the firmware Co...

Page 144: ...able pinch points and any other damage to the cable or connector Is the cable damaged Replace the transport cable See Transport cable removal on page 4 193 Go to step 2 2 Replace the transfer module D...

Page 145: ...moval on page 4 40 Is the printhead connected correctly Go to step 4 Reseat the connector 4 Has the printhead been recently replaced Replace with a new part See Printhead removal installation and adju...

Page 146: ...connectors JCARTP1 and JCARTS1 Does the error clear Problem resolved Go to step 2 2 Check the cartridge motor 1 fuser cable in connector JCARTP1 and JCARTS1 for pinch points and the cable or connector...

Page 147: ...1 Turn the printer off and then remove the rear frame cover See Rear frame cover removal on page 4 40 Reseat the cables in connectors JMIRR1 A and JPH1 B Does the error clear Problem resolved Go to st...

Page 148: ...hether the new printhead solves the problem See Printhead verification on page 3 52 Perform the Mirror Motor Test See Mirror Motor Test on page 3 22 Did the mirror motor pass the test Replace the prin...

Page 149: ...4 165 4 1 Disconnect the cable in JTRAY1 and connect the cable from the new paper pick mechanism 2 Bring the printer up in the Diagnostics menu turn off the printer press and hold 3 and 6 turn on the...

Page 150: ...page 4 122 Go to step 3 3 Remove the left cover See Left cover removal on page 4 23 Check all the toner level sensor cables connected to the rear of the HVPS Are any of the cables damaged Replace the...

Page 151: ...f two toner level sensors are damaged replace the damaged sensor See Toner level sensor removal on page 4 174 Go to step 2 2 Disconnect one of the toner level sensors and POR the MFP See Toner level s...

Page 152: ...evel sensors are damaged replace the damaged sensors See Toner level sensor removal on page 4 174 Go to step 2 2 Disconnect one of the toner level sensors and POR the printer See Toner level sensor re...

Page 153: ...ntil the 920 12 error occurs Step Questions actions Yes No 1 Turn the printer off and then remove the rear frame cover See Rear frame cover removal on page 4 40 Reseat the cables in connectors JCARTP1...

Page 154: ...o to step 4 4 Measure the resistance across fuse F7 on the system board Is the fuse blown Replace the system board See System board removal on page 4 165 Replace the EP drive assembly See Electrophoto...

Page 155: ...r cable A damaged Replace the cartridge motor 2 3 cable See Cartridge motor 2 3 cable removal on page 4 73 Go to step 4 4 Measure the resistance across the fuse F7 A on the system board Is the fuse bl...

Page 156: ...rt cable removal on page 4 193 Go to step 3 3 Lower the front access cover Check the transport cable for pinch points and any other cable damage Is the cable damaged Replace the transport cable See Tr...

Page 157: ...n and adjustment on page 4 147 Go to step 3 3 Perform the printhead verification to check whether the printhead replacement fixes the problem See Printhead verification on page 3 52 Did the printhead...

Page 158: ...onnector in the JBIN1 connector 3 Bring the printer up in the Diagnostics menu turn off the printer press and hold 3 and 6 turn on the printer 4 Touch SENSOR TESTS 5 Touch Dynamic Sensors 6 Touch Othe...

Page 159: ...the cables damaged Replace the cartridge motor 2 3 cable See Cartridge motor 2 3 cable removal on page 4 73 Go to step 3 3 Remove the right cover Check the cartridge motor 2 3 cable for proper connec...

Page 160: ...ctor Check both the system board end and the motor driver end Is the cable A damaged Replace the motor driver cable See Motor driver cable removal on page 4 126 Go to step 3 Step Questions actions Yes...

Page 161: ...nnector Check both ends of the cable Is the cable damaged Replace the transport motor cable See Transport cable removal on page 4 193 Go to step 5 5 Visually inspect the motor driver card Is the motor...

Page 162: ...es not have this switch go to step 2 Is the voltage level 115 230 properly set Go to step 2 Set the switch for the proper country voltage 2 Turn the printer off and then remove the rear frame cover Se...

Page 163: ...F5 F6 F7 F9 F10 F12 and F13 on the system board Are any of the fuses blown Replace the system board See System board removal on page 4 165 Replace the low voltage power supply See Low voltage power s...

Page 164: ...tep 3 3 Measure the resistance across fuse F13 on the system board Is the fuse blown Replace the system board See System board removal on page 4 165 Go to step 4 1 JSB1 JBIN1 JFAN1 JFUSER1 JBOR1 JHVPS...

Page 165: ...he rear frame cover See Rear cover removal on page 4 39 3 Check the cable in the connector JFDS1 A for proper connection to the system board pinch points and the cable or connector for any other damag...

Page 166: ...n Does the display on the touchscreen change from Open to Closed Replace the top cover sensor Replace the system board See System board removal on page 4 165 Step Questions actions Yes No 1 Is the spe...

Page 167: ...new cooling fan Turn the multifunction printer off and turn the MFP on perform a POR Did the error clear Replace the fan See Cooling fan removal on page 4 83 Replace the system board See System board...

Page 168: ...g fan blower fan Turn the multifunction printer off and turn the MFP on perform a POR Did the error clear Replace the cartridge cooling fan See Cartridge cooling fan removal on page 4 61 Replace the s...

Page 169: ...al on page 4 122 Go to step 3 3 Disconnect JHVPS1 from system board and HVPS Check for the following continuity Go to step 4 Replace the HVPS cable See High voltage power supply HVPS cable removal on...

Page 170: ...and magenta2 or black1 and black2 on the transfer contact assembly Go to step 5 Replace the transfer contact assembly Is continuity present 5 Replace the HVPS See High voltage power supply HVPS remov...

Page 171: ...installed flatbed scanner See Flatbed scanner removal on page 4 279 Go to step 3 3 Has the system board been replaced recently Replace the system board with a new and not previously installed system...

Page 172: ...ame cover See Rear frame cover removal on page 4 40 Check the cable in connector J49 A for proper connection to the system board Is the cable seated correctly Replace the system board See System board...

Page 173: ...printer up in the Diagnostics menu turn off the printer press and hold 3 and 6 turn on the printer 4 Activate the new 5 V interlock switch 5 Does the display go from Close front door to the Diagnostic...

Page 174: ...to step 3 3 1 Disconnect the cable in connector JCVR1 2 Connect the new 24 V interlock switch 3 Bring the printer up in the Diagnostics menu turn off the printer press and hold 3 and 6 turn on the pri...

Page 175: ...e mirror clean Go to step 2 Slightly dampen a soft lint free cloth with water and clean the mirror 2 Remove the ADF motor side cover See ADF motor side cover removal on page 4 232 Is the ADF exit sens...

Page 176: ...the ADF case assembly See ADF case assembly removal on page 4 251 Go to step 2 2 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Remove the ADF motor side cover See ADF motor...

Page 177: ...d Replace the ADF case assembly See ADF case assembly removal on page 4 251 Go to step 2 2 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Remove the ADF motor side cover See...

Page 178: ...A damaged Replace the ADF case assembly See ADF case assembly removal on page 4 251 Go to step 2 2 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Remove the ADF motor side co...

Page 179: ...ons Yes No 1 Remove the ADF motor side cover See ADF motor side cover removal on page 4 232 Are the connectors seated correctly Replace the ADF See ADF removal entire on page 4 248 Reseat connector St...

Page 180: ...und pin 6 Does the meter read 5 V dc Go to step 5 Go to step 4 4 Place a voltmeter between the JFUSER1 pin 3 and ground pin 6 Does the voltage drop to 5 V dc Replace the system board See System board...

Page 181: ...d 3 and 6 turn on the printer 3 Touch SENSOR TESTS 4 Touch Dynamic Sensors 5 Touch Bubble 6 Open the front access door and the top access cover 7 Activate the bubble sensor flag A Did the bubble senso...

Page 182: ...voltage correct Go to step 2 Inform the customer 2 Is the AC line cord damaged Replace the line cord Go to step 3 3 Check the system board for 5 V dc between JLVPS2 pin 1 and ground Is the voltage cor...

Page 183: ...es No 1 Verify the paper is loaded properly in the paper tray or manual feed slot Is the paper properly loaded Go to step 2 Load paper correctly 2 Turn the printer off and remove the fuser See Fuser a...

Page 184: ...r DC cable removal on page 4 117 6 1 Replace the fuser 2 Bring the printer up in Diagnostics Menu turn the multifunction printer off press and hold 3 and 6 turn the MFP on and then release the buttons...

Page 185: ...4 137 Go to step 3 3 1 Disconnect the cable in the connector JTRAY1 2 Connect the cable to the new paper pick assembly 3 Bring the printer up in the Diagnostics menu turn off the printer press and ho...

Page 186: ...us under Printers and Faxes on the host computer Delete all print jobs in the print queue Is the printer online and in a Ready state Go to step 5 Go to step 4 4 Change the printer status to online Did...

Page 187: ...reless card seated correctly Go to step 20 Go to step 19 19 Properly reseat the ISP cables Did this fix the problem Problem resolved Go to step 20 20 Replace the ISP wireless card See Installing an In...

Page 188: ...s the voltage approximately 5 V dc Go to step 3 Replace the system board See System board removal on page 4 165 3 Check continuity of the operator panel assembly cable Is there continuity Replace the...

Page 189: ...o out all colors Check the paper type texture and weight settings against what is loaded in the printer Once the printer has been restored to its default levels do the following 3 Inspect the transfer...

Page 190: ...alue If the PC unit was not replaced replace the PC unit Has the photoconductor unit been recently replaced Reset the value To reset this value 1 In Ready mode press Admin Menu 2 Touch Supplies Menu 3...

Page 191: ...when the clock graphic displays Perform the appropriate cartridge drive motor test for the missing color See General motor tests procedures on page 3 12 Did the motor run Go to step 5 Replace the EP...

Page 192: ...quality horizontal banding 5 Turn off the printer and check the continuity of the HVPS cable Go to step 7 Replace the cable assembly Is there continuity 6 Replace the HVPS See High voltage power supp...

Page 193: ...Yes No 1 Is the fuser properly installed Go to step 2 Install the fuser properly 2 Replace the fuser See Fuser assembly removal on page 4 114 Does this fix the problem Problem resolved Replace the LVP...

Page 194: ...s No 1 Is there any toner contamination on the fuser assembly Replace the fuser See Fuser assembly removal on page 4 114 Contact your next level of support Step Questions actions Yes No 1 Replace the...

Page 195: ...idge guide for damage or obstructions Clear any obstructions 4 Inspect the cartridge guide wheel if its dislodged or damaged Is the cartridge guide wheel damaged Replace the cartridge guide wheel See...

Page 196: ...contamination Is the spring contact damaged Replace the cartridge contact spring See Contact springs kit removal on page 4 79 Go to step 6 6 Replace the toner cartridge Does this fix the problem Probl...

Page 197: ...e buttons when the progress bar displays The Diagnostics menu group contains the settings and operations used while manufacturing and servicing the printer See Diagnostics menu on page 3 3 for more in...

Page 198: ...andard Network STD NET SETUP press and hold 9 7 and 6 The Network SE menu contains advanced network menu tools Fax SE menu From the HomePrime screen press 411 SE menu From a browser add se to device s...

Page 199: ...Available tests The tests display on the operator panel in the order shown Registration Top Margin See Registration on page 3 6 Bottom Margin Left Margin Right Margin Skew See Skew on page 3 6 Quick...

Page 200: ...erial 1 Wrap if a serial port is available in the PCI slot 1 See Serial 1 Wrap on page 3 16 USB HS Test Mode See USB HS Test Mode on page 3 17 DUPLEX TESTS if installed Quick Test See Quick Test duple...

Page 201: ...j See Parallel 1 strobe adjustment Par 1 Strobe Adj on page 3 26 Motor Calibration See Motor Calibration on page 3 26 EP SETUP EP Defaults See EP Defaults on page 3 26 Fuser Temp See Fuser temperature...

Page 202: ...kew and Quick Test Skew One printhead houses the four color planes The black plane is aligned to the printer and then the color planes are internally aligned to black Adjust the skew mechanically by m...

Page 203: ...the skew with the printhead mechanical setting See Printhead alignment on page 4 9 Top margin 25 to 25 Each increment corresponds to 8 scans at a 600 dpi scan rate 0 0133 inches or 0 339 mm A positiv...

Page 204: ...ines to check for skew General printer information including current page count installed memory serial number and code level To print the Quick Test page Note Print the Quick Test Page on letter or A...

Page 205: ...aced in the ADF 1 Touch SCANNER TESTS in Diag Menu 2 Touch Feed Test 3 Indicate the specific media size with or and then touch Start If media is in the ADF then ADF feed tests are performed If no medi...

Page 206: ...aper not positioned over the ADF exit sensor 1 Paper positioned over the ADF exit sensor Scan Sensor 0 Paper is not present above this sensor 1 Paper is being fed from the ADF and the top edge passes...

Page 207: ...djustment easier 6 Touch Quick Test Quick Test printing is displayed and then two pages print 7 On the pages make sure all the Current Values are set to zero If not go back to step 2 and repeat Paper...

Page 208: ...the choice to run the motor in forward or reverse Other times there will only be the option to run the motor in forward direction In general the test should work as follows 1 Touch MOTOR TESTS from Di...

Page 209: ...le Closed Reverse Multipurpose feeder Remove the optional tray to avoid paper jams while performing this test If this test is run with the lower door open perform the following actions in order to act...

Page 210: ...gle is selected a single page is printed If Continuous is selected printing continues until Stop is pressed to cancel the test If a source is selected that contains envelopes an envelope test pattern...

Page 211: ...displayed and the test prints Hardware Tests Panel Test This test verifies the operator panel LCD function To run the Panel Test 1 Touch HARDWARE TESTS from Diag Menu 2 Touch Panel Test The Panel Tes...

Page 212: ...id and then the final results appear If the test fails SDRAM Error appears for approximately three seconds and the failure count increases by 1 Note If you need to exit the test before it is complete...

Page 213: ...ata 232 Error Data 422 Error FIFO Error DSR Error DSR PIO Error DSR Interrupt Error CTS Error CTS PIO Error CTS Interrupt Error USB HS Test Mode 1 Touch HARDWARE TESTS from Diag Menu 2 Touch USB HS Te...

Page 214: ...op is pressed For information about changing the margin see Top Margin duplex on page 3 20 The paper you choose to print the page on should be either Letter or A4 To print the Quick Test duplex 1 Touc...

Page 215: ...generates a duplexed color output page To stop the test the user must press Stop While this test executes the power indicator light blinks green and the panel displays DUPLEX TESTS Printing The paper...

Page 216: ...t 8 Print the Quick Test again to verify the adjustment Repeat until the front and back top scan lines match Left Margin duplex By modifying this setting you can shift the image on the back side of a...

Page 217: ...percentage full N A Fuser Temp Degrees C N A BUR Temp Degrees C N A Power Voltage N A Dynamic sensors Fuser Exit Open Closed Open the top access cover Activate the fuser exit flag The sensor should c...

Page 218: ...iag Menu 2 Touch Quick Disk Test The power indicator blinks while the test is in progress Quick Disk Test Test Passed is displayed if the test passes and the power indicator turns on solid Quick Disk...

Page 219: ...able blocks xxxx Bad Blocks Replace Disk is displayed if more than 2000 bad blocks are detected The disk cannot be recovered because too many bad blocks exist on the disk Press Stop to return to DEVIC...

Page 220: ...r change the serial number 1 Touch PRINTER SETUP in the Diag Menu 2 To change the value touch the keyboard icon A simulation of a typewriter allows you to enter an alphanumeric value 3 Touch Submit to...

Page 221: ...u 2 Touch Configuration ID keyboard icon The values for Configuration ID 1 and Configuration 2 are displayed Use or to move from one position to another in the Configuration number s Touch 0 through 9...

Page 222: ...er for example decreased the value from 0 to 3 the strobe will be sampled for 150 ns longer than the factory setting Motor Calibration This setting synchronizes the aligner and fuser motor speeds with...

Page 223: ...s together with other settings to calculate printing speed and media selection To adjust DC Charge Adjust 1 Touch EP SETUP from Diag Menu 2 Touch the left or right arrows beside DC Charge Adjust to to...

Page 224: ...log To view the event log 1 Touch EVENT LOG from Diag Menu 2 Touch Display Log Up to three error codes display at a time Press Back to return to the EVENT LOG menu Print Log Additional diagnostic inf...

Page 225: ...g and the printed log information 1 Touch EVENT LOG in Diag Menu 2 Touch Clear Log 3 Touch YES to clear the Event Log or touch NO to exit the Clear Log menu If YES is selected Deleting EVENT LOG displ...

Page 226: ...Assist on page 3 36 Min Copy Memory See Min Copy Memory on page 3 36 Format Fax Storage See Format Fax Storage on page 3 36 Fax Storage Location See Fax Storage Location on page 3 37 ADF Edge Erase S...

Page 227: ...the USB device can be viewed or saved on another device such as an USB connected computer If you select Off only the MFP can view the USB device contents To change the setting 1 Touch USB Scan to Loc...

Page 228: ...will display 31 Missing or Defective color Cartridge Replace the color cartridges and color photoconductors Prt Quality Pages To help isolate print quality problems print the Print Quality Test Pages...

Page 229: ...around the edge of the text or line The hole in the colored region is reduced in size which prevents the characteristic white gap that is caused by mis registration This menu item applies to PCL 5e e...

Page 230: ...Configuration main menu PPDS Emulation Activates or deactivates default the Personal Printer Data Stream PPDS emulation language This menu item only appears if the PPDS interpreter is available To ac...

Page 231: ...Touch Factory Defaults from the Config Menu 3 Touch Restore Base Restore STD NET or Restore LES The Restore Network value only appears on printer models that have integrated network support Restoring...

Page 232: ...MFP will allot to a priority queue Amounts are 25 35 50 80 or 100MB The default is 80MB The regular queue is interrupted for copy jobs in the priority queue To change the Min Copy Memory value 1 Touc...

Page 233: ...e is either 2mm or the value of this setting whichever is larger To change the value for ADF Edge Erase 1 Touch ADF Edge Erase in the Config Menu 2 Touch the right or left arrows to change the value f...

Page 234: ...ubmitting changes is displayed 7 Place the original printout on the glass of the flatbed and touch Copy Quick Test 8 If the pages match continue to step 9 If the pages do not match repeat steps 4 thro...

Page 235: ...chines Adjust the Left Margin and or the Top Margin to match the original 17 Touch Submit Submitting changes is displayed Touch Back at any time to return to the initial manual scanner registration sc...

Page 236: ...job it completes the current job and any other jobs received while printing the current job before it initiates a calibration The printer does not cancel or suspend an active job in order to perform...

Page 237: ...ou are automatically returned to the Configuration main menu Color Alignment Color alignment should be performed when the transfer module is replaced To perform color alignment 1 Touch Color Alignment...

Page 238: ...printer automatically changes the Paper Prompts setting to Manual Paper Load Manual overrides that would result in a change paper message are disabled for Paper or Env prompts that are set to Manual M...

Page 239: ...rrow to toggle between Prompt user Continue and Use current 3 Touch Submit Submitting changes is displayed You are automatically returned to the Configuration main menu Duplex Gloss Generates higher q...

Page 240: ...alled disk must either be formatted or removed from the printer The Disk Encryption menu item only appears when A non defective disk is installed in the printer The values of bits 3 2 of digit 4 in th...

Page 241: ...forth that should not be erased This setting initiates either a single pass wipe or a multiple pass wipe of the entire hard disk Select Disk Wipe fast to complete a single pass wipe and replacement o...

Page 242: ...ig Menu 2 Touch the left or right arrow to toggle between On and Off 3 Touch Submit LES Applications Enables or disables Lexmark Embedded Solutions LES applications The default is Enable To change the...

Page 243: ...eir error diffused copies to activate the pel synthesis function The settings are On and Off the default is Off 1 Touch Pel Blurring in the Config Menu 2 Touch the left or right arrow to toggle betwee...

Page 244: ...vision Info Network Code Level Displays network code level Network Compile Info Display network compile information Printer Code Level Displays printer code level Printer Compile Info Displays compile...

Page 245: ...s take place However if the printer is turned off or has an error while the front door is locked for example while printing or calibrating the front door may not unlock If this happens turn the printe...

Page 246: ...the top cover 4 Remove the screw C from the inside left cover 5 Press the waste toner release latch D swing the front of the waste toner assembly away from the printer and remove 6 Remove the two scr...

Page 247: ...ulling up with the fingers to remove the cover Warning Be careful not to damage the two small locking tabs G 9 Lift the rear of the left cover out and rotate it out of position toward the front Note I...

Page 248: ...can verify that the printhead is the failing FRU by following this procedure 1 Turn the printer off remove the power cord from the outlet then remove all cords and cables from the printer before begin...

Page 249: ...Diagnostic aids 3 53 7526 Go Back Previous Next 3 Remove the rear frame cover a Loosen the eight screws A b Lift the rear frame cover and remove A...

Page 250: ...Go Back Previous Next 4 If present remove the hard disk a Remove the two screws B and disconnect the hard disk from the system board C b Pull the hard disk straight out to pop the hard disk standoffs...

Page 251: ...Back Previous Next 5 Carefully disconnect the printhead ribbon D and the mirror motor cables E from the system board and carefully connect the printhead ribbon and mirror motor cables from the new pri...

Page 252: ...Touch Mirror Motor Test The touchscreen displays Mirror Motor Test Motor Running After the test completes the touchscreen displays either Pass or Fail If the test fails replace the system board If th...

Page 253: ...526 Go Back Previous Next Paper Jams Error jam locations The following illustration shows the location and error codes generated for specific paper jams and the corresponding locations of these jams A...

Page 254: ...3 58 Service Manual 7526 Go Back Previous Next Printer base...

Page 255: ...sing too tightly against the paper or envelopes Push the paper tray in firmly after loading paper Paper recommendations Use only recommended paper or specialty media Do not load wrinkled creased damp...

Page 256: ...emove all originals from the scanner 291 Scanner jam remove jammed originals from the scanner 292 Scanner jam remove all originals from the scanner 292 Scanner jam remove jammed originals from the sca...

Page 257: ...open longer than 10 minutes 3 Pull the paper forward if it is lodged under the photoconductor units Note You may need to remove the photoconductor units if the paper is lodged too tightly under them...

Page 258: ...If paper is visible under the fuser then grasp it on each side and pull it forward If paper is not visible c Turn the screws on the fuser to the left d Remove the fuser and then remove the jam e Repla...

Page 259: ...the lower front door Warning Potential Damage To avoid overexposing the photoconductors do not leave the front doors open for more than 10 minutes 2 Grasp the paper on each side and pull it forward 3...

Page 260: ...the left b Lift the fuser and then pull forward to remove it c Place the fuser on a flat surface 3 Pull the paper gently out of the printer or up toward the standard exit bin to remove it 4 Reinstall...

Page 261: ...e the lower front door 6 Close the upper front door 7 Touch Continue 230 paper jam 1 Remove Tray 1 2 Open the upper front door and then open the lower front door CAUTION HOT SURFACE The inside of the...

Page 262: ...Pull the jam straight up to remove it 4 Pull out on the release tabs to allow the front door to split 5 Pull straight out to remove any jammed paper 6 Close the lower front door and then close the upp...

Page 263: ...Tray 1 and then pull the jammed pages straight up and out 2 After removing the tray the front door may need to be opened to access the jam 3 Close Tray 1 4 Touch Continue Paper jammed in front of Tra...

Page 264: ...hen pull the jammed pages out 2 After removing the tray the tray above may need to be opened to access the jam 3 Close the tray 4 Touch Continue 250 paper jam 1 Press the paper release lever and then...

Page 265: ...e all original documents from the ADF 2 Open the ADF cover and then remove any jammed paper 3 Close the ADF cover 4 Open the duplex cover and then remove any jammed paper 5 Open the scanner cover and...

Page 266: ...3 70 Service Manual 7526 Go Back Previous Next...

Page 267: ...from the outlet before attempting to service the printer To reassemble the printer reverse the order of removal unless otherwise specified Do not operate the printer anytime during removals If it is a...

Page 268: ...ng grounded Prevent ESD sensitive parts from being accidentally touched by other personnel Install printer covers when you are not working on the printer and do not put unprotected ESD sensitive parts...

Page 269: ...st install the correct screw type in each location during reassembly Sizes are as close to actual as possible as long as the printout is not scaled or resized Screw identification table P N Screw type...

Page 270: ...me 3 HVPS to leftside frame plate 1 Laser support plate to lower plate 2 Left cam shaft lock assembly to printer frame 2 Left frame assembly to lower plate 4 Left frame assembly to laser support plate...

Page 271: ...Right cover to printer frame 4 Rear cover to printer frame 4 27S2837 M3 5X1 34 PANHD 8L black Left cover to lower swingout frame 2 Top cover to left cover 1 Top cover to right cover 1 27S2838 Machine...

Page 272: ...d to frame 1 Motor assembly to ADF 2 Right cover 1 88A0212 Taptite M3 5x0 6 PAN AC inlet ground wire 1 Fuser AC cable s ground wire to leftside plate 1 88A0232 Taptite M3 L6 PANHD AC inlet cable to fr...

Page 273: ...to rightside plate 1 88A0313 Plastite M2 9 L8 PAN Contacts assembly to leftside cartridge guide 1 Cover CBM to upper front cover 3 Cover pivot to swingout frame 3 Duplex upper guide to top access doo...

Page 274: ...top access door links 2 Top cover links to top cover 2 88A0421 Plastite M3x5 Bushing ground cable 1 Ground bushing to ADF 1 Ground wire in input tray 1 Input tray bottom cover 7 Paper present LED 1 M...

Page 275: ...g the printhead is to loosen the printhead mounting screws and to set the skew for black Note If you need to replace the printhead see Printhead removal installation and adjustment on page 4 147 Print...

Page 276: ...lose the top access door 11 Connect the electrical cord into the printer 12 Connect the electrical cord into the outlet 13 Align the printhead skew for black a Enter Diagnostic mode turn off the print...

Page 277: ...Repair information 4 11 7526 Go Back Previous Next d Touch Quick Test A page similar to this one prints...

Page 278: ...n the top left alignment marks rotate the alignment screw counterclockwise a full revolution and print the Quick Test page Repeat adjusting the screw and printing the Quick Test page until the top ali...

Page 279: ...rom the electrical outlet c Disconnect the transfer module cable d Press the two tabs on either side of the transfer module and lift out the transfer module with the photoconductor units in place e Re...

Page 280: ...ust the values until both top alignment marks are on the top edge of the print The right arrow increases the value and moves the top alignment marks down the page The left arrow decreases the value an...

Page 281: ...e of the page The right arrow increases the value and moves the left side alignment marks to the right The left arrow decreases the value and moves the left side alignment marks to the left 2 Press Su...

Page 282: ...n Right Margin Bottom Margin Skew and Bow 5 Touch Submit to enter all the values It is important to set all the values to zero before starting 6 Touch Quick Test in the Cyan menu Two pages print You m...

Page 283: ...ter the number determined from the Fine Adjustment scale or the Coarse Adjustment scales on the part of the page for the T value The current value is automatically entered on the sheet At this point i...

Page 284: ...xample is shown below 12 Continue to follow the directions on the bottom of the first page to find the Cyan Top Margin T the Skew Z and on the second page of the Quick Test page the Left Margin L Righ...

Page 285: ...unplug the power cable from the outlet prior to starting removals or checks 2 Prior to starting any repairs read and understand the warnings in this manual High temperature High voltage Laser radiatio...

Page 286: ...ront access door cover assembly 4 Press the two tabs C on either side of the transfer module and lift out the transfer module Note Leave the photoconductor units on the transport belt when removing Wa...

Page 287: ...Back Previous Next 5 Looking down at the keyed end of the restraint D twist the end clockwise slide the restraint upward through the slit E and slip the end of the restraint through the keyed hole F...

Page 288: ...6 Go Back Previous Next 6 Close the front access door assembly 7 Remove the two screws G that attach the pivot pin to the front access door cover assembly 8 Remove the bracket H 9 Remove the front acc...

Page 289: ...e part number Remove the left cover with the left door cover attached 1 Remove the rear cover See Rear cover removal on page 4 39 2 Remove the waste toner assembly See Waste toner assembly removal on...

Page 290: ...de while pulling up with the fingers to remove the cover Warning Be careful not to damage the two small locking tabs D Note If you are removing the left cover to access another part leave the left cov...

Page 291: ...Repair information 4 25 7526 Go Back Previous Next Left door cover removal 1 Open the left door cover 2 Lift up to disengage the hinges 3 Remove the left door cover...

Page 292: ...l assembly with card on page 7 3 for the part number 1 Remove the top access cover assembly See Top access cover assembly removal on page 4 43 2 Place the top access assembly on a soft link free cloth...

Page 293: ...Repair information 4 27 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...

Page 294: ...Go Back Previous Next 5 Lift the position guide so you can access the cables 6 Flip open the lock D on the wide ribbon cable and remove the cable from the connector 7 Disconnect the display cable E by...

Page 295: ...7526 Go Back Previous Next Installation note Inspect the display cable A and make sure that it is connected to the UICC card with its white side facing the card as shown 8 Remove the screw F and disco...

Page 296: ...xt 9 Remove the position guide 10 Turn the position guide cover over 11 Remove the bezel See Operator panel bezel removal on page 4 32 12 Rotate the operator panel up and gently pull the display ribbo...

Page 297: ...Repair information 4 31 7526 Go Back Previous Next 13 Remove four screws H Note Make sure to note the position of the ground cable J on the upper right 14 Remove the operator panel touchscreen...

Page 298: ...position 2 Using a flathead screwdriver or similar tool unsnap the locking tabs on the upper left and the upper right of the bezel The tabs on the right and left side will then release 3 Rotate the be...

Page 299: ...nel buttons removal 1 Remove the top access cover assembly See Top access cover assembly removal on page 4 43 2 Place the top access assembly on a soft link free cloth with the touchscreen facing down...

Page 300: ...4 34 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...

Page 301: ...6 Go Back Previous Next 5 Lift the position guide so you can access the cables 6 Flip open the lock D on the wide ribbon cable and remove the cable from the connector 7 Disconnect the display cable E...

Page 302: ...26 Go Back Previous Next Installation note Inspect the display cable A and make sure that it is connected to the UICC card with its white side facing the card as shown 8 Remove the screw F and disconn...

Page 303: ...ation 4 37 7526 Go Back Previous Next 9 Remove the three screws G from the operator panel card 10 Move the UICC card out of the way to access the buttons 11 Remove the button or buttons that you need...

Page 304: ...4 38 Service Manual 7526 Go Back Previous Next Output bin extension cover removal See Output bin extension cover on page 7 3 for the part number Lift to remove the output bin extension cover...

Page 305: ...age the two tabs B Note If you are removing the rear cover to access another part leave the cooling fan filter in place and you are done If you need to replace the rear cover continue with the next st...

Page 306: ...4 40 Service Manual 7526 Go Back Previous Next Rear frame cover removal See Rear frame cover on page 7 3 for the part number 1 Loosen the eight screws A 2 Lift the rear frame cover and remove A...

Page 307: ...removal See Right cover on page 7 3 for the part number 1 Remove the rear cover See Rear cover removal on page 4 39 2 Open the top access cover 3 Open the front access cover 4 Remove the plastic scre...

Page 308: ...4 42 Service Manual 7526 Go Back Previous Next 6 Remove the three screws C 7 Pull up on the rear of the right cover and then press down at the indicated location to disengage the tab...

Page 309: ...eplace just the springs See Top access cover springs removal on page 4 179 to fasten the springs without having to replace the entire top cover assembly 1 Remove the right cover See Right cover remova...

Page 310: ...k Previous Next 5 Open the three clips on the toroid to remove it from the USB cable Note Be sure to re install the toroid when the top access cover is replaced 6 Remove the cables through the opening...

Page 311: ...oard 8 Open the two clips on the toroid H on the UICC Note Be sure to retain the toroid and reinstall it on the cable when you install the top access cover 9 Remove the cables through the frame over t...

Page 312: ...y are upright and then remove them Note If you are removing the top access cover to access another part leave the top access cover and the operator panel bezel attached and you are done If you need to...

Page 313: ...side where the spring was attached is broken off B or is no longer there newer parts make sure the spring is oriented so the spring bend is on the bottom C If the original rib on the right side is pr...

Page 314: ...the top access cover See Top access cover assembly removal on page 4 43 2 Remove the flatbed scanner See Flatbed scanner removal on page 4 279 3 Remove the LVPS Note Make sure you note the routing of...

Page 315: ...USER1 D on the system board 5 Remove the output bin sensor cable A and the feed through sensor cable B through the side of the frame E 6 Remove the two screws F and disconnect the cooling fan Note If...

Page 316: ...4 50 Service Manual 7526 Go Back Previous Next 7 Remove the six screws G 8 Remove the screw H in front...

Page 317: ...right side and remove the ground cable from the cable restraint K Note If you need to replace the top cover FRU continue with the next step to remove the separate output bin extension cover FRU 10 Rem...

Page 318: ...See 5 V interlock switch on page 7 7 for the part number 1 Remove the EP drive assembly See Electrophotographic EP drive assembly removal on page 4 89 2 Disconnect the cable in connector at JINT1 A o...

Page 319: ...7526 Go Back Previous Next 4 Remove the cable from the two cable retainers C 5 Remove the 5 V interlock switch and bracket from the printer 6 Remove the screw D and remove the 5 V interlock switch ca...

Page 320: ...xt 24 V interlock switch removal See for the part number 1 Remove the LVPS See 24 V interlock switch on page 7 7 2 Disconnect the connector at JCVR1 A at system board 3 Remove the screw B and the brac...

Page 321: ...Repair information 4 55 7526 Go Back Previous Next Installation notes Observe the routing of the 24 V interlock switch cable A A A A...

Page 322: ...haft and gear parts pack on page 7 11for the part number 1 Remove the paper pick mechanism assembly See Paper pick mechanism assembly removal on page 4 137 2 Remove the left cover See Left cover remov...

Page 323: ...Repair information 4 57 7526 Go Back Previous Next 4 Release the locking tab B from the front lower corner of the HVPS 5 Lay the board to the left B...

Page 324: ...4 58 Service Manual 7526 Go Back Previous Next 6 Grasp the auger shaft C and remove it C...

Page 325: ...rmation 4 59 7526 Go Back Previous Next 7 Make sure to remove the auger gear D on the other side Installation note The auger gear needs to go onto the auger shaft as shown with the flat surfaces going...

Page 326: ...ver assembly See Top cover assembly removal on page 4 48 2 Remove the cable from the openings including the loop through the frame A 3 Press up on the tab B to remove the flag Installation notes With...

Page 327: ...removal 1 Remove the rear frame cover See Rear frame cover removal on page 4 40 2 Disconnect JBLW1 A 3 Open the three clips holding the toroid on the cable and remove the toroid Note Retain the toroid...

Page 328: ...4 62 Service Manual 7526 Go Back Previous Next 5 Remove the two screws C 6 Remove the cartridge cooling fan C...

Page 329: ...dge guide wheel Note Only replace defective cartridge guide wheel s 1 For yellow cyan or magenta a Remove the two screws A from the cartridge guide b Gently pull the cartridge guide then remove the ca...

Page 330: ...iers to hold the cartridge guide wheel in place when installing a new cartridge wheel Installation note Inspect carefully if the cartridge guide wheel is seated properly on the cartridge guide before...

Page 331: ...artridge guide to avoid damage Installation note Gently pull the cartridge guide then use a long nosed pliers to hold the cartridge guide wheel in place when installing a new cartridge guide wheel Ins...

Page 332: ...a Remove the two screws A from the cartridge guide b Gently pull the cartridge guide then remove the front B or rear C cartridge guide wheel CAUTION Do not pull too hard on the cartridge guide to avo...

Page 333: ...tion 4 67 7526 Go Back Previous Next Installation note Gently pull the cartridge guide then use a pair of long nosed pliers to hold the cartridge guide wheel in place when installing a new rear cartri...

Page 334: ...ly align the pins to their proper slot when reinstalling the cartridge guide wheel Be careful not to damage or bend the pins Installation note Inspect carefully if the cartridge guide wheel is seated...

Page 335: ...ous Next 2 For black a Remove the screw D from the lower most cartridge guide b Gently pull the cartridge guide then remove the front E or rear F cartridge guide wheel CAUTION Do not pull too hard on...

Page 336: ...ide wheel fall off Installation note Inspect carefully if the cartridge guide wheel is seated properly on the cartridge guide before reinstalling the screw on the cartridge guide Cartridge motor 1 fus...

Page 337: ...ormation 4 71 7526 Go Back Previous Next 3 Disconnect the connectors from the cartridge motor 1 C and the fuser motor D 4 Disconnect the camshaft cable connector E from the motor card and unwind the t...

Page 338: ...he six retainers F Installation notes Make sure you wrap the camshaft cable around the cartridge motor 1 fuser cable as shown to prevent the cables from interfering with the motors or the motors damag...

Page 339: ...e motor 2 3 cable removal 1 Remove the LVPS See Low voltage power supply LVPS removal on page 4 124 2 Disconnect the connectors in JCARTP2 A and JCARTS2 B on the system board 3 Disconnect the connecto...

Page 340: ...4 74 Service Manual 7526 Go Back Previous Next 4 Remove the cable from the seven retainers E Installation notes Note the routing of the cables and the cable retainers E E E E...

Page 341: ...olor on demand assembly removal 1 Remove the print cartridges 2 Remove the top cover assembly See Top cover assembly removal on page 4 48 3 Disconnect the connector at JBOR1 A on the system board 4 Re...

Page 342: ...tion notes 1 Push the actuators A all the way down 2 Turn the printer around and verify the actuators are in the correct location by looking inside the front of the printer The actuators B should be v...

Page 343: ...Repair information 4 77 7526 Go Back Previous Next 3 Rotate the large COD gear until the stop C on the gear is against the housing 4 Engage the gears on the left side of the COD C...

Page 344: ...ews E 7 Verify the actuators can be seen by looking inside the printer at the triangular holes as in step 2 8 Check to make sure you can rotate the large COD gear from stop to stop 9 Reconnect the cab...

Page 345: ...number Charge roll contact spring removal 1 Remove the HVPS See High voltage power supply HVPS removal on page 4 120 2 Remove the charge roll contact springs A Be sure to push the springs under the re...

Page 346: ...er supply HVPS removal on page 4 120 2 Pull out the spring that will be replaced HVPS DB contact spring A HVPS DR contact spring B HVPS TAR contact spring C Installation note Refer below for the locat...

Page 347: ...Go Back Previous Next Torsion spring removal 1 Remove all the toner cartridges 2 Remove the screw A and the spring cap B of the appropriate contact spring 3 Press the lower half C D of the springs an...

Page 348: ...notes When installing make sure the top half E of the spring is under the straight spring F This is typical for both types of springs Also make sure the bottom half D G of both springs are compressed...

Page 349: ...removal 1 Remove the rear frame cover See Rear frame cover removal on page 4 40 2 Remove the rear cover See Rear cover removal on page 4 39 3 Disconnect the cable at the connector JFAN1 A on the syste...

Page 350: ...Manual 7526 Go Back Previous Next Cooling fan filter removal 1 Remove the rear cover See Rear cover removal on page 4 39 2 Turn the cover over 3 Squeeze the right side of the filter and remove it from...

Page 351: ...are is required when removing the screws to prevent the heat sink from excessively moving Installation notes 1 Orient the fan so that airflow is to the heat sink 2 Extra care is required when installi...

Page 352: ...on either side of the transfer module and lift out the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid damaging the photoconductor drum hold th...

Page 353: ...5 Looking down at the keyed end of the restraint D twist the end clockwise slide the restraint upward through the slit E and slip the end of the restraint through the keyed hole F Repeat for the other...

Page 354: ...4 88 Service Manual 7526 Go Back Previous Next 7 Remove the two screws G 8 Remove the duplex reference edge guide assembly G...

Page 355: ...out the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid damaging the photoconductor drum hold the photoconductor units by their handle and plac...

Page 356: ...evious Next 7 Disconnect the cartridge 1 fuser motor cable two connectors D and remove the cables from the cable retainers E 8 Disconnect the camshaft transport cable connector F and remove the cable...

Page 357: ...mshaft transport cable around the other cables with about four twists to keep them from interfering with or being damaged by the motors 10 Disconnect the cartridge 2 cartridge 3 motor cable two connec...

Page 358: ...4 92 Service Manual 7526 Go Back Previous Next 12 Remove the two screws N to remove the motor driver card assembly 13 Remove the three screws P on the front M L N M...

Page 359: ...Repair information 4 93 7526 Go Back Previous Next 14 Remove the two screws O on the inside O P...

Page 360: ...4 94 Service Manual 7526 Go Back Previous Next 15 Remove the seven screws R securing the EP drive R R First R R...

Page 361: ...the single function printers and the multiple function printers MFP are the same except for the fuser retract link The package comes with the EP drive assembly with the single function printer link i...

Page 362: ...ous Next 3 Install the new fuser retract link C the follower cam D and the E clip E Note Be sure to orient the follower cam so that the smaller diameter side is against the fuser retract link and the...

Page 363: ...all the EP drive 1 Push the actuator rack all the way to the right A 2 Pull the link all the way up B Note After installing the EP drive assembly be sure to test the link by moving it up and down It s...

Page 364: ...ner C on the bottom of the EP drive 4 Align the gear so the first gear tooth D of the top cover camshaft meshes with the first two gear teeth E after the flat area in the EP drive actuator rack and th...

Page 365: ...Repair information 4 99 7526 Go Back Previous Next 5 Hold the drive in place while replacing the first of the seven screws then continue replacing the rest of the screws G...

Page 366: ...place the three screws J on front 8 Wind the camshaft cable K around the cartridge 1 fuser cables about four times to make sure they do not interfere with or are damaged by the fuser motor 9 Connect t...

Page 367: ...ck Previous Next 10 Connect the cartridge 2 cartridge 3 motor cable two connectors N and make sure the cable is in the cable clamps O 11 Connect the camshaft transport cable connector P and make sure...

Page 368: ...e transport belt module and developer units 16 Replace the cartridges and the fuser 17 Replace the paper tray Fax modem removal 1 Remove the rear frame cover See Rear frame cover removal on page 4 40...

Page 369: ...l you need on 1 Remove the front access cover assembly See Front access cover assembly removal on page 4 20 2 Remove the LVPS See Low voltage power supply LVPS removal on page 4 124 3 Disconnect the J...

Page 370: ...ice Manual 7526 Go Back Previous Next 6 Open the front door assembly 7 Unwrap and remove the cable from the left and right pulleys C 8 Close the front door assembly and remove the mounting screw D and...

Page 371: ...t to the right and remove You need to press firmly to slide the front door assembly to the right Installation note See Front door assembly front cable left removal on page 4 106 and Front door assembl...

Page 372: ...on either side of the transfer module and lift out the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid damaging the photoconductor drum hold th...

Page 373: ...Back Previous Next 5 Looking down at the keyed end of the restraint D twist the end clockwise slide the restraint upward through the slit E and slip the end of the restraint through the keyed hole F...

Page 374: ...cover See Left cover removal on page 4 23 7 Close the front access door assembly 8 Release the cable spring G from the front door assembly Note In order to access the springs make sure the top access...

Page 375: ...vious Next 10 Open the front door assembly and using a flathead screwdriver rotate the top cover camshaft clockwise to raise the front door locking mechanism J Installation note Note The longer cable...

Page 376: ...on either side of the transfer module and lift out the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid damaging the photoconductor drum hold t...

Page 377: ...Back Previous Next 5 Looking down at the keyed end of the restraint D twist the end clockwise slide the restraint upward through the slit E and slip the end of the restraint through the keyed hole F...

Page 378: ...Close the front access door assembly 7 Release the spring G from the front door assembly Note In order to access the springs make sure the top access cover is closed 8 Remove the end of the cable H fr...

Page 379: ...Repair information 4 113 7526 Go Back Previous Next Installation notes The shorter restraint cable installs on the right side of the printer...

Page 380: ...Grasp the handles B slide the fuser out from the printer Installation note If you install a new fuser be sure to reset the fuser counter in the Configuration Menu To reset the counter 1 Turn off the m...

Page 381: ...t Fuser AC cable removal Note The LVPS to fuser AC cable is black 1 Remove the top cover assembly See Top cover assembly removal on page 4 48 2 Turn the top cover assembly over 3 Slide the connector d...

Page 382: ...ual 7526 Go Back Previous Next 4 Remove the cable from the cable openings B Note Observe the routing of the cable for reinstallation 5 Remove the cable from the cable restraint C on the right side and...

Page 383: ...Remove the top cover assembly See Top cover assembly removal on page 4 48 2 Turn the top cover assembly over 3 Remove the connector A from the top cover assembly Warning You will damage the old connec...

Page 384: ...xt Hard drive assembly removal 1 Remove the rear frame cover See Rear frame cover removal on page 4 40 2 Press the locking tab A as you disconnect the hard disk cable from the system board B 3 Open th...

Page 385: ...Repair information 4 119 7526 Go Back Previous Next 4 Pull the hard disk straight out to pop the hard disk standoffs free of the system board...

Page 386: ...age power supply HVPS removal See High voltage power supply on page 7 11 for the part number 1 Remove the left cover See Left cover removal on page 4 23 2 Remove the six mounting screws A 3 Release th...

Page 387: ...ormation 4 121 7526 Go Back Previous Next 4 Disconnect the five connectors C from the HVPS Installation notes Be sure to replace the spring when replacing the HVPS See the illustration for proper orie...

Page 388: ...the top cover assembly See Top cover assembly removal on page 4 48 2 Disconnect the cable connector at JHVPS1 A on the system board and extract the cable through the opening B in the frame 3 Disconne...

Page 389: ...ation 4 123 7526 Go Back Previous Next Left bellcrank assembly removal See for the part number 1 Remove the left cover See Left cover removal on page 4 23 2 Remove the C clip A 3 Remove the left bellc...

Page 390: ...2 Remove the rear frame cover See Rear frame cover removal on page 4 40 3 Disconnect the connector at JLVPS1 connector A and at JLVPS2 B on the system board 4 Remove the cable from the cable restrain...

Page 391: ...age switch A is set for the proper value 115 V or 230 V depending on the country Install the LVPS and make sure the fuser AC cable is in the cable guides and not behind the LVPS Reconnect the fuser AC...

Page 392: ...voltage power supply LVPS removal on page 4 124 2 Disconnect the connector in JDVR1 A on the system board 3 Disconnect the connector on the motor driver card B 4 Remove the cable from the cable from...

Page 393: ...ion 4 127 7526 Go Back Previous Next Motor driver card removal 1 Remove the right cover See Right cover removal on page 4 41 2 Disconnect the three cables A 3 Remove the two screws B and remove the mo...

Page 394: ...using removal See the multipurpose feeder duplex gear and housing kit on for the part number 1 Remove the paper pick mechanism assembly See Paper pick mechanism assembly removal on page 4 137 2 Remove...

Page 395: ...Repair information 4 129 7526 Go Back Previous Next 5 Slide a flathead screwdriver up and under the front cover 6 Slide the remaining two gears and housings off...

Page 396: ...supply LVPS See Low voltage power supply LVPS removal on page 4 124 2 Remove the multipurpose feeder duplex gear and housing See Multipurpose feeder MPF duplex gear and housing removal on page 4 128 3...

Page 397: ...ation 4 131 7526 Go Back Previous Next 6 Slide the motor out of the housing 7 Disconnect the connector D from the motor Installation notes 1 Connect the cable A at the motor 2 Slide the cable tie B on...

Page 398: ...4 132 Service Manual 7526 Go Back Previous Next 3 Insert the motor into the frame 4 Replace the screws C...

Page 399: ...Repair information 4 133 7526 Go Back Previous Next 5 Slide the housing onto the motor making sure the four tabs of the housing slide under the cable tie...

Page 400: ...e feeder MPF duplex motor cable removal 1 Remove the multipurpose feeder duplex motor See Multipurpose feeder MPF duplex motor cable removal on page 4 134 2 Disconnect the connector from JDX1 A on the...

Page 401: ...removal 1 Remove the LVPS See Low voltage power supply LVPS removal on page 4 124 2 Disconnect the cable connector at JOPT2 A on the system board 3 Replace the rear frame cover to protect the system b...

Page 402: ...4 136 Service Manual 7526 Go Back Previous Next 6 Press the tabs together to remove the option cable connector Note Be sure to note the cable routing for reinstallation...

Page 403: ...Remove the waste toner assembly See Waste toner assembly removal 3 Remove the rear frame cover See Rear frame cover removal on page 4 40 4 Disconnect the connector in JFDPCK1 A and JTRAY1 B on the sys...

Page 404: ...the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid damaging the photoconductor drum place the transfer module with the photoconductor units o...

Page 405: ...us Next 12 Remove the four screws G from the bottom pan 13 With one hand disengage the gear H then grasp the paper pick assembly and pull forward and downward to disengage the assembly until the front...

Page 406: ...AY1 and JTRAY2 connectors do not bind when passing through the frame access hole Installation notes 1 Remove the waste toner assembly See Waste toner assembly removal on page 4 212 2 Replace the rear...

Page 407: ...canner 5 Turn the printer on its back 6 Slide the paper pick assembly toward the back of the printer and down to engage the tabs A 7 Slide the tabs A and engage the gear B 8 Reach into the printer and...

Page 408: ...Service Manual 7526 Go Back Previous Next 10 Secure the remaining three screws D 11 Remove the rear frame cover 12 Route the cables through the hole in the frame and connect them to JFDPCK1 E and JTR...

Page 409: ...Replace the rear frame cover 15 Replace the waste toner assembly 16 Replace the toner cartridges 17 Replace the transfer module with the photoconductor units 18 Close the front access cover 19 Replac...

Page 410: ...from the holding pin B Installation note If a new photoconductor unit is installed reset the life count value in the printer memory If a message appears on the operator panel 1 When 84 color PC Unit...

Page 411: ...f you have additional input options and you are having problems with media picking replace these tires also Always replace the pick tires in pairs The tires come in a package of two Warning Remove onl...

Page 412: ...in the direction shown Printer pad removal 1 Slide the corner of the printer containing the damaged pad over the corner of the table 2 Remove the side cover that corresponds to the damaged pad so you...

Page 413: ...r 5 Open the front access door 6 Remove the fuser 7 Remove the transfer module and photoconductor units a Disconnect the transfer module cable A b Press the two tabs B to release the front access cove...

Page 414: ...Remove the rear frame cover a Loosen the eight screws E b Lift the rear frame cover and remove 10 Remove the right cover See Right cover removal on page 4 41 11 Remove the left cover with the left do...

Page 415: ...ing screws F b While holding the printhead in place loosen the printhead alignment screw G until the printhead comes out easily Warning Secure the printhead when loosening the printhead alignment scre...

Page 416: ...ews loose so you can print the pages that will be used to align the black plane to the printer frame This also allows the black skew adjustment with the printhead alignment screw Once the black skew i...

Page 417: ...the ribbon cables do not rub against the edges of the frame c Replace the remaining system board shield screws D in the following order Replace the five screws D1 from the inner right side of the sup...

Page 418: ...tem board in the following order Loosely attach the four corners E1 in a clockwise order beginning with the left top center Replace the USB connector screw E2 Replace the top center right center side...

Page 419: ...crews H for the hard disk shield f Reconnect all the connectors to the system board Use the diagram below for a guideline Warning Be careful reconnecting the printhead ribbon cable J and the UICC cabl...

Page 420: ...Tighten the eight screws 11 Replace the rear cover a Place the two top tabs in the slots b Replace the four screws 12 Reinstall the transfer module with the photoconductor units still attached 13 Rec...

Page 421: ...he top access cover b Open the front access cover c Enter Diagnostic mode turn off the printer press and hold 3 and 6 turn on the printer and release the buttons when the progress bar appears d Select...

Page 422: ...4 156 Service Manual 7526 Go Back Previous Next f Touch Quick Test A page similar to this one prints...

Page 423: ...terclockwise a full revolution and print the Quick Test page Repeat adjusting the screw and printing the Quick Test page until the top alignment marks are the same distance from the top of the media N...

Page 424: ...fer module cable d Press the two tabs on either side of the transfer module and lift out the transfer module with the photoconductor units in place e Remove all of the toner cartridges f Tighten the p...

Page 425: ...the values until both top alignment marks are on the top edge of the print The right arrow increases the value and moves the top alignment marks down the page The left arrow decreases the value and m...

Page 426: ...e page The right arrow increases the value and moves the left side alignment marks to the right The left arrow decreases the value and moves the left side alignment marks to the left 2 Press Submit to...

Page 427: ...rgin Right Margin Bottom Margin Skew and Bow 5 Touch Submit to enter all the values It is important to set all the values to zero before starting 6 Touch Quick Test in the Cyan menu Two pages print Yo...

Page 428: ...er the number determined from the Fine Adjustment scale or the Coarse Adjustment scales on the part of the page for the T value The current value is automatically entered on the sheet At this point it...

Page 429: ...example is shown below 12 Continue to follow the directions on the bottom of the first page to find the Cyan Top Margin T the Skew Z and on the second page of the Quick Test page the Left Margin L Ri...

Page 430: ...Manual 7526 Go Back Previous Next Right bellcrank assembly removal See for the part number 1 Remove the right cover See Right cover removal on page 4 41 2 Remove the C clip A 3 Remove the right bellc...

Page 431: ...the rear frame cover See Rear frame cover removal on page 4 40 3 Remove the hard disk if one is installed See Hard drive assembly removal on page 4 118 4 Remove the wireless network card if one is ins...

Page 432: ...d the toroids and replace them during installation 8 Disconnect all the cables from the system board Warning Do not use tools to remove the UICC cable B or the printhead ribbon cable C Flat ribbon cab...

Page 433: ...Repair information 4 167 7526 Go Back Previous Next 9 Remove the nine screws D from the system board 10 Remove the system board...

Page 434: ...em board in the following order Loosely attach the four corners A1 in a clockwise order beginning with the left top corner Replace the USB connector screw A2 Replace the top center right center side a...

Page 435: ...ous Next 4 Replace all the screws B from the left side of the printer including Ethernet port connector 1 screws Modem shield 1 screws Hard disk shield 2 screws Ground screw 1 screw Note Be sure to at...

Page 436: ...m below for a guideline Warning Be careful reconnecting the printhead ribbon cable D and the MDC cable E Ribbon cables can be damaged easily and should be handled carefully 5 Install the toroids hard...

Page 437: ...65 2 Remove the right cover See Right cover removal on page 4 41 3 Pull the cables through the access holes on the right side of the printer 4 Remove the five mounting screws A from the outer left sid...

Page 438: ...top and bottom of the support shield Note Only the ribbon and mirror motor cables come through the access holes in the system board support shield 7 Lower and remove the support shield Note Be carefu...

Page 439: ...lace the remaining system board shield screws in the following order Replace the five screws B from the inner right side of the support shield Tighten the two mounting screws A to the top of the suppo...

Page 440: ...4 174 Service Manual 7526 Go Back Previous Next Toner level sensor removal See Toner level sensor on page 7 11 for the part number Note the locations of the toner sensors...

Page 441: ...ress both locking tabs at the same time Using a spring hook press the locking tab A and disengage the sensor on that side Press the other locking tab B and remove the sensor Note Use a slight pressure...

Page 442: ...the top access cover 2 Remove the side cover that corresponds to the link you need to replace For example if you are replacing the right lower link remove the right cover 3 Disconnect the spring A 4...

Page 443: ...cover See Rear frame cover removal on page 4 40 2 Disconnect the cable in connector JFDS1 and remove the cable through the top left frame 3 Remove the right cover See Right cover removal on page 4 41...

Page 444: ...r 2 Snap the sensor into place Note Make sure the sensor is replaced with the slot A in the center aligned with the gap in the top cover frame Also note the placement of the cable connector 3 Route th...

Page 445: ...ings removal The down level springs should be replaced If the cover won t open Lift the top access cover as far as you can slip the spring hook into the opening between the top access cover and the si...

Page 446: ...not open see If the cover won t open on page 4 179 2 With a spring hook remove the right spring from the link Note Depending on the orientation of the spring the spring will attach from the inside or...

Page 447: ...vot remove it 6 Place the new spring in place to hook onto the pivot and push the pivot back into place securing the spring on the pivot If the original rib where the spring was attached is broken off...

Page 448: ...o Back Previous Next 7 Rotate the pivot down to lock it back into place 8 Attach the other end of the spring onto the link Note Depending on the orientation of the spring step 6 the spring will attach...

Page 449: ...vious Next Replacing the left spring 1 Open the top access cover 2 With a spring hook detach the spring from the left link 3 Detach the spring from the frame Note If the spring is not attached to the...

Page 450: ...the pivot out of the frame and outer top access cover holes Do not remove it from the inner hole If a spring is attached to the pivot remove it 6 Position the new spring with the bend in the spring do...

Page 451: ...Repair information 4 185 7526 Go Back Previous Next 8 Use a screwdriver to push the pivot back into the slot to lock it in place 9 Attach the front end of the spring to the top access cover link...

Page 452: ...ee for the part number 1 Remove the top access cover See Top access cover assembly removal on page 4 43 2 Remove the fuser See Fuser assembly removal on page 4 114 3 Remove the top screw A and loosen...

Page 453: ...us Next 5 Rotate the camshaft up using the camshaft actuator handle D so you can access the other two screws E and remove them 6 Flex the EP drive assembly to remove the right side of the camshaft fro...

Page 454: ...Manual 7526 Go Back Previous Next Installation notes 1 On the left side align the mark on the idler gear A with the mark on the camshaft gear B and slide the camshaft into place meshing the gears on...

Page 455: ...ar tooth of the camshaft aligns with the first two gear teeth of the EP drive actuator rack D Note Make sure the actuator rack on the EP drive is all the way back 3 Flex the EP drive on the right to s...

Page 456: ...camshaft actuator handle and replace the two screws H 6 Replace the screw in the EP drive that allowed you to flex the EP drive and tighten the other screw see step 4 of the removal 7 Replace the top...

Page 457: ...ts on the transport belt when removing Warning To avoid damaging the photoconductor drum place the transfer module with the photoconductor units on a clean surface Never expose the photoconductor unit...

Page 458: ...Remove the photoconductor units Lift the right end handle D of the photoconductor unit releasing from the mount 7 Lift the unit up and away from the left side of printer ensuring the left end of the...

Page 459: ...abs C on either side of the transfer module and lift out the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid damaging the photoconductor drum p...

Page 460: ...f the cable is smaller than the connector on the front access door and it may be easier to get that end through the openings 6 Extract the cable through the opening in the frame to the right side of t...

Page 461: ...Repair information 4 195 7526 Go Back Previous Next 9 Remove the six screws H from the cable shield 10 Remove the cable through the cable channel J...

Page 462: ...k Previous Next Transport motor cable removal 1 Remove the right cover See Right cover removal on page 4 41 2 Disconnect the cable from the transport motor drive A 3 Disconnect the cable from the tran...

Page 463: ...card removal 1 Remove the top access cover assembly See Top access cover assembly removal on page 4 43 2 Place the top access assembly on a soft link free cloth with the touchscreen facing down 3 Rem...

Page 464: ...4 198 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...

Page 465: ...o Back Previous Next 5 Lift the position guide so you can access the cables 6 Flip open the lock D on the wide ribbon cable and remove the cable from the connector 7 Carefully pull the display cable E...

Page 466: ...26 Go Back Previous Next Installation note Inspect the display cable A and make sure that it is connected to the UICC card with its white side facing the card as shown 8 Remove the screw F and disconn...

Page 467: ...Repair information 4 201 7526 Go Back Previous Next 9 Remove the position guide 10 Disconnect the UICC cable F 11 Remove the three screws G from the operator panel card 12 Remove the UICC card...

Page 468: ...ble removal 1 Remove the top access cover assembly See Top access cover assembly removal on page 4 43 2 Place the top access assembly on a soft link free cloth with the touchscreen facing down 3 Remov...

Page 469: ...Repair information 4 203 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C 5 Lift the position guide so you can access the cables...

Page 470: ...4 204 Service Manual 7526 Go Back Previous Next 6 Flip open the lock D on the wide ribbon cable and remove the cable from the connector 7 Disconnect the display cable E by pulling it straight out...

Page 471: ...7526 Go Back Previous Next Installation note Inspect the display cable A ans make sure that it is connected to the UICC card with its white side facing the card as shown 8 Remove the screw F and disco...

Page 472: ...4 206 Service Manual 7526 Go Back Previous Next 9 Remove the position guide 10 Disconnect the UICC cable G and remove the cable from the cable retainers H 11 Remove the UICC card...

Page 473: ...or cable removal front panel 1 Remove the top access cover See Top access cover assembly removal on page 4 43 2 Place the top access assembly on a soft link free cloth with the touchscreen facing down...

Page 474: ...4 208 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C 5 Lift the position guide so you can access the cables...

Page 475: ...Repair information 4 209 7526 Go Back Previous Next 6 Flip open the lock D on the wide ribbon cable and remove the cable from the connector 7 Disconnect the display cable E by pulling it straight out...

Page 476: ...26 Go Back Previous Next Installation note Inspect the display cable A asn make sure that it is connected to the UICC card with its white side facing the card as shown 8 Remove the screw F and disconn...

Page 477: ...Next 9 Remove the position guide 10 Disconnect the USB ground cable G Note Take note of the routing of the ground cable 11 Remove the two screws H that secure the USB connector 12 Remove the USB conn...

Page 478: ...12 Service Manual 7526 Go Back Previous Next Waste toner assembly removal Not a FRU 1 Press the waste toner release latch A 2 Swing the front of the waste toner assembly away from the printer and remo...

Page 479: ...ver assembly 3 Press the two tabs C on either side of the transfer module and lift out the transfer module Note Leave the photoconductor units on the transport belt when removing Warning To avoid dama...

Page 480: ...4 214 Service Manual 7526 Go Back Previous Next 5 Remove the six mounting screws D holding the HVPS in place 6 Release the locking tab E from the front lower corner of the HVPS D E...

Page 481: ...Repair information 4 215 7526 Go Back Previous Next 7 Lay the board to the left 8 Disconnect the three top toner level sensor cables F from the HVPS F...

Page 482: ...4 216 Service Manual 7526 Go Back Previous Next 9 Remove the two screws G G 18B1236...

Page 483: ...Repair information 4 217 7526 Go Back Previous Next 10 Remove the cleaner shutter actuator H from the waste toner HV contact assembly H...

Page 484: ...8 Service Manual 7526 Go Back Previous Next 11 Remove the four screws J the two screws K and the screw L Tilt the Waste toner HV contact assembly forward and up to remove it J 18B0832 K 88A0313 L 27S2...

Page 485: ...when re installing the waste tone HV contact assembly 1 Remove the fuser 2 Remove all four toner cartridges 3 Remove the four sets of torsion springs Remove the screw A and the spring cap B of the ap...

Page 486: ...all the waste toner HV contact assembly into place Route the toner level sensor cables E through the holes in the waste toner HV contact assembly while positioning the assembly Make sure the aligner s...

Page 487: ...Repair information 4 221 7526 Go Back Previous Next 6 Install the seven screws in the order shown below Install 1 18B0832 st Install 2 88A0313 nd Install 4 18B0832 th Install 3 rd 27S2838...

Page 488: ...22 Service Manual 7526 Go Back Previous Next 7 Use two screws F to attach the cleaner shutter actuator to the Waste toner HV contact assembly Make sure the gear aligns as shown F 27S2838 Rib Ribs alig...

Page 489: ...Repair information 4 223 7526 Go Back Previous Next 8 Attach the eight springs G to the Waste toner HV contact assembly as shown Make sure the springs are behind the retainers G Retainer...

Page 490: ...hen installing each contact spring make sure the top half H of the spring is under the straight spring J This is typical for both types of springs Also make sure that the bottom half K L of both sprin...

Page 491: ...emove the wireless network card see Wireless network card removal on page 4 226 2 Disconnect the wireless network antenna cable A from the wireless network card 3 With pliers squeeze the inner tabs B...

Page 492: ...ork card removal 1 Remove the rear frame cover See Rear frame cover removal on page 4 40 2 Squeeze the connector A to disconnect the wireless cable from the system board at J5 3 Open the left door cov...

Page 493: ...re removing the wireless network card to access another part leave the antenna attached to the card and you are done If you need to replace the wireless network card FRU continue with the next step to...

Page 494: ...ext Scanner flatbed and automatic document feeder ADF ADF front cover removal 1 Open the ADF front cover 2 Remove the two screws A 3 Close the ADF front cover 4 Separate the cover from the ADF case as...

Page 495: ...Repair information 4 229 7526 Go Back Previous Next 5 Lift the cover from the ADF...

Page 496: ...Service Manual 7526 Go Back Previous Next ADF front side cover removal 1 Remove the input tray See Input tray removal on page 4 242 2 Open the ADF front cover 3 Remove the screw A 4 Lift the cover to...

Page 497: ...4 231 7526 Go Back Previous Next Installation notes Insert the tab into the slot and lower it into place ADF handle cover removal 1 Open the ADF 2 Remove the two screws A in the handle cover 3 Remove...

Page 498: ...k Previous Next ADF motor side cover removal 1 Remove the input tray See Input tray removal on page 4 242 2 Remove the ADF front cover See ADF front cover removal on page 4 228 3 Open the ADF case ass...

Page 499: ...he ADF motor side cover to access another part leave the cable attached and you are done If you need to replace the ADF motor side cover FRU continue with the next step to remove the separate left doo...

Page 500: ...e cable from the ADF motor side cover Installation notes Install the cable from the old FRU in the new FRU Be sure to route the cable through the hole The smaller connector goes through the hole Inser...

Page 501: ...Repair information 4 235 7526 Go Back Previous Next ADF upper case cover removal 1 Open the ADF cover 2 Remove the two screws A...

Page 502: ...are removing the ADF upper case cover to access another part leave the cable attached and you are done If you need to replace the ADF upper case cover continue with the next step to remove the separat...

Page 503: ...ck Previous Next Flatbed cave LED card and cover removal The flatbed cave LED card and the flatbed cave LED cover are separate FRUs The removal for each is the same 1 Remove the screw A 2 Pull the ass...

Page 504: ...4 238 Service Manual 7526 Go Back Previous Next 4 Pinch each of the two clear posts C separate the flatbed cave LED cover from the flatbed cave LED card 5 Separate the FRU you need to replace...

Page 505: ...removal 1 Remove the ADF See ADF removal entire on page 4 248 2 Disconnect the two cables A 3 Remove the scanner left cover See Scanner left cover removal on page 4 244 4 Remove the scanner right cov...

Page 506: ...4 240 Service Manual 7526 Go Back Previous Next 6 Remove the four screws C from the right and left sides 7 Remove the two screws D from the top...

Page 507: ...Repair information 4 241 7526 Go Back Previous Next 8 Lift up and extract the two cables E through the frame 9 Remove the flatbed with glass cover...

Page 508: ...anual 7526 Go Back Previous Next Input tray removal 1 Lift the input tray 2 Remove the screw A securing the cable cover 3 Disconnect the cable connector B 4 Lift the left front side and ease the rear...

Page 509: ...ious Next 5 Disengage the cable from the channel and remove the tray Note Observe the routing for re installation Scanner front cover removal 1 Open the ADF 2 Grasp the front cover and the top right a...

Page 510: ...cover removal 1 Remove the scanner front cover See Scanner front cover removal on page 4 243 2 Remove the left cover See Left cover removal on page 4 23 3 Remove the three screws A 4 Pull the bottom...

Page 511: ...Repair information 4 245 7526 Go Back Previous Next Scanner rear cover removal 1 Remove the six screws A 2 Remove the scanner rear cover Note Make sure the flatbed filter does not get lost...

Page 512: ...nner right cover removal 1 Remove the scanner front cover See Scanner front cover removal on page 4 243 2 Remove the right cover See Right cover removal on page 4 41 3 Remove the screw A 4 Slide the c...

Page 513: ...Repair information 4 247 7526 Go Back Previous Next 5 Grasp the cover on the lower right and pull up...

Page 514: ...us Next ADF removal entire 1 Remove the left cover See Left cover removal on page 4 23 2 Remove the ground screw A secured to the MDC card 3 Disconnect the cable B 4 Remove the scanner rear cover See...

Page 515: ...ove the screw C that secures the ground cable 6 Remove the cable from the cable restraint D 7 LIft the ADF until it has resistance press the release tabs D and complete removing the ADF Note It may be...

Page 516: ...see step 6 above Warning Whenever you replace the ADF entire the flatbed scanner or the MDC card perform the Scanner Manual Registration in Configuration menu To enter Config Menu 1 Turn off the mult...

Page 517: ...Back Previous Next ADF case assembly removal 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Disconnect the sensor cable A 3 Rotate the ADF case assembly until the flattened s...

Page 518: ...4 252 Service Manual 7526 Go Back Previous Next 4 Remove the sensor cable from the narrow retainer by untwisting the cable wires and easing them out individually 5 Remove the ADF case assembly...

Page 519: ...Go Back Previous Next ADF skew sensor card removal 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Disconnect all cables and remove the screw B from the skew sensor card A 3 R...

Page 520: ...l 7526 Go Back Previous Next ADF closed cover flag removal 1 Remove the ADF front cover See ADF front cover removal on page 4 228 2 Remove the screw A 3 Lift the sensor B out of the way 4 Remove the c...

Page 521: ...Previous Next ADF exit sensor with cable removal 1 Remove the ADF motor side cover See ADF motor side cover removal on page 4 232 2 Disconnect the output sensor cable 3 Push the cable and connector t...

Page 522: ...ewdriver to open the latch C the output sensor card 6 Remove the ADF exit sensor and cable ADF hinge left and right removal The hinges are removed in a similar manner Only one hinge is shown in this r...

Page 523: ...nt The heavy weight hinge has a blue dot on the side and should be installed on the side indicated below 1 Install the heavy weight hinge with the blue dot in the position indicated below 2 Replace th...

Page 524: ...emoval 1 Remove the ADF motor side cover See ADF motor side cover removal on page 4 232 2 Disconnect the three connectors A 3 Remove the two screws B and the two ground screw C 4 Remove the ADF motor...

Page 525: ...r and make sure the clutch motor cable A is through the housing 2 Make sure the fork of the clutch assembly B is up and the gear C is up 3 Slide the left side of the ADF motor gear train assembly into...

Page 526: ...l 7526 Go Back Previous Next 4 Slide the right side of the ADF motor gear train assembly into place making sure that the fork E engages the plate F 5 Rotate the gear arm G down until the spring H latc...

Page 527: ...revious Next 6 Route the clutch assembly cable through the cable retainers J 7 Replace the four screws K making sure that the ground cable L is attached to the indicated screw 8 Reconnect the cables 9...

Page 528: ...DF paper stop removal Pull the paper stop all the way out and slide out ADF pick pad removal 1 Open the ADF cover 2 Lift the pick pad A and remove the pad Note Although the spring is not part of the A...

Page 529: ...ous Next ADF pick pad spring removal 1 Remove the ADF pick pad See ADF pick pad removal on page 4 262 2 Lift out the spring A ADF pick roller assembly removal 1 Open the ADF 2 Rotate the locking lever...

Page 530: ...lation notes 1 Install the left side of the ADF pick roller assembly first 2 Push the assembly flat into the ADF while turning the gear on the right A 3 When the assembly clicks into position then rot...

Page 531: ...allation was correct by pressing the ADF pick roller into the ADF door then pulling the door down until the ADF pick roller assembly smoothly falls forward without falling out ADF pressure plate cover...

Page 532: ...ck Previous Next 3 Pull the pressure plate cover down and remove it Installation note Set the pressure plate face down over the glass of the flatbed and close the ADF The ADF pressure pad will snap in...

Page 533: ...ck Previous Next ADF separator pad removal 1 Open the ADF cover 2 Lift the ADF separator pad A and remove the pad Note Cover the separator pad with your other hand to prevent the pad from flying away...

Page 534: ...removal 1 Remove the flatbed CCD carrier module See Flatbed CCD carrier module removal on page 4 274 2 Remove the two screws A on either end of the carriage transport belt 3 Remove the cable from the...

Page 535: ...SD brush removal 1 Remove the ADF upper case cover See ADF upper case cover removal on page 4 235 2 Gently pry the brush off the two posts with a flat bladed screwdriver Note One post firmly holds the...

Page 536: ...4 270 Service Manual 7526 Go Back Previous Next Flatbed air filter removal 1 Press the tab A and remove the filter door cover 2 Remove the filter...

Page 537: ...4 271 7526 Go Back Previous Next Flatbed CCD lamp assembly removal 1 Remove the flatbed with glass cover See Flatbed with glass cover removal on page 4 239 2 Remove the three screws A 3 Lift the cover...

Page 538: ...4 272 Service Manual 7526 Go Back Previous Next 4 Release the two latches C 5 Rotate the lamp assembly and disconnect the cable D...

Page 539: ...formation 4 273 7526 Go Back Previous Next Warning Do not touch the lamp with your hand Hold it only by the ends as shown 6 Remove the lamp assembly Installation notes Make sure the four springs A are...

Page 540: ...vice Manual 7526 Go Back Previous Next Flatbed CCD carrier module removal 1 Remove the flatbed with glass cover See Flatbed with glass cover removal on page 4 239 2 Remove the two screws A and remove...

Page 541: ...k Previous Next 3 Disconnect the two CCD cables B Warning Be careful disconnecting and reconnecting the ribbon cables Ribbon cables can be damaged easily and should be handled carefully 4 Loosen the g...

Page 542: ...4 276 Service Manual 7526 Go Back Previous Next 5 Rotate the clip E 6 Lift rod and slide the flatbed CCD carrier module off the rod...

Page 543: ...Repair information 4 277 7526 Go Back Previous Next Installation note Be sure to route the carriage transport belt correctly...

Page 544: ...8 Service Manual 7526 Go Back Previous Next Flatbed cooling fan removal 1 Remove the flatbed with glass cover See Flatbed with glass cover removal on page 4 239 2 Remove the four A screws 3 Remove the...

Page 545: ...Go Back Previous Next Flatbed scanner removal 1 Remove the ADF See ADF removal entire on page 4 248 2 Remove the right cover See Right cover removal on page 4 41 3 Remove the two screws A and the smal...

Page 546: ...ect the two cables C at the connectors on the MDC card ribbon cable Note Be careful disconnecting and reconnecting the ribbon cables Ribbon cables can be damaged easily and should be handled carefully...

Page 547: ...remove it Warning Whenever you replace the ADF entire the flatbed scanner or the MDC card perform the Scanner Manual Registration in Configuration menu To enter Config Menu 1 Turn off the multifunctio...

Page 548: ...y See Input tray removal on page 4 242 2 Remove the six screws A securing the underside of the input tray 3 Disconnect the cable at the connector B Note Observe the routing of the cable for re install...

Page 549: ...rn the ADF over Be sure to brace the ADF to prevent damage 3 Remove the three screws A securing the MDC cable cover and remove the cover 4 Disconnect the ICC cable B from the scanner ICC card 5 Turn t...

Page 550: ...onnect the ground cables when you reinstall the card 9 Remove the card Scanner ICC cable removal 1 Remove the ADF See ADF removal entire 2 Turn the ADF over Be sure to brace the ADF to prevent damage...

Page 551: ...ove the cable from the cable restraints D and note the routing 7 Open the clips E on the toroid and set it aside for reinstallation later 8 Turn the ADF over 9 Remove the ADF motor side cover See ADF...

Page 552: ...m board Only replace one component at a time Replace the required component and perform a POR before replacing a second component listed above If this procedure is not followed the printer will be ren...

Page 553: ...onnect the eight cables C from the MCD card Warning Be careful disconnecting and reconnecting the ribbon cables Ribbon cables can be damaged easily and should be handled carefully 4 Remove the three s...

Page 554: ...the MDC card Warning Whenever you replace the ADF entire the flatbed entire or the MDC card perform the Scanner Manual Registration in Configuration menu To enter Config Menu 1 Turn off the multifunc...

Page 555: ...hen removing the high capacity input tray HCIT media tray assembly it is not necessary to remove it from the base machine and the caster base 1 Open the HCIT media tray assembly A until it reaches a s...

Page 556: ...front tray cover it is not necessary to remove the HCIT media tray assembly from the base machine and the caster base 1 Remove the HCIT media tray assembly See HCIT media tray assembly removal on pag...

Page 557: ...Repair information 4 291 7526 Go Back Previous Next HCIT rear cover removal 1 Remove the four screws A securing the HCIT rear cover to the drawer 2 Remove the HCIT rear cover...

Page 558: ...e high capacity input tray HCIT and remove the HCIT from the caster base 2 Remove the HCIT media tray assembly See HCIT media tray assembly removal on page 4 289 3 Remove the HCIT rear cover See HCIT...

Page 559: ...the high capacity input tray HCIT and remove the HCIT from the caster base 2 Remove the HCIT media tray assembly See HCIT media tray assembly removal on page 4 289 3 Remove the HCIT rear cover See HCI...

Page 560: ...Top plate assembly removal on page 4 303 2 Remove the four screws A securing the pass thru sensor bracket to the top plate assembly Note The bushing may come off when removing the pass thru sensor bra...

Page 561: ...right cover See HCIT right cover removal on page 4 292 2 Disconnect the seven connectors A from the HCIT controller board 3 Remove the ground screw B from the HCIT controller board 4 Remove the two s...

Page 562: ...lide but removing the right slide is similar 1 Remove the HCIT media tray assembly See HCIT media tray assembly removal on page 4 289 2 Remove the three screws A securing the HCIT drawer slide to the...

Page 563: ...uring the pass thru sensor to the top plate assembly 4 Remove the pass thru sensor from the top plate assembly 5 Release the harness from the clamps C 6 Remove the eight screws D securing the elevator...

Page 564: ...high capacity input tray HCIT media tray assembly See HCIT media tray assembly removal on page 4 289 2 Pull the autocompensator pick arm A down 3 Remove the pick tire B from the pick roll assembly C 4...

Page 565: ...rd assembly removal on page 4 295 2 Disconnect the two springs A from the frame Note Leave the springs attached to the cam size sensing plate B and the actuator switch 3 Slide the cam size sensing pla...

Page 566: ...tion note 1 Place the card mount option into position and secure it with the four screws 2 Reinstall the media size actuator to the card mount option 3 Reinstall the actuator switch with spring throug...

Page 567: ...on page 4 292 2 Disconnect the photointerrupter sensor cable connector A from the HCIT controller board 3 Turn the drawer rear side down and use 4 0 mm Allen wrench to remove the four screws B securi...

Page 568: ...us Next 4 Remove the screw C securing the sensor to the rear frame and then release the hooks D Note Remove the cable from the restraint and observe the routing for reinstallation 5 Remove the photoin...

Page 569: ...03 7526 Go Back Previous Next Top plate assembly removal 1 Remove the high capacity input tray HCIT right cover See HCIT right cover removal on page 4 292 2 Disconnect the five connectors A from the H...

Page 570: ...526 Go Back Previous Next 3 Release the hooks B securing the pass thru sensor from the top plate assembly 4 Remove the fourteen screws C securing the top plate assembly to the frame 5 Remove the top p...

Page 571: ...Connector locations 5 1 7526 Go Back Previous Next 5 Connector locations Locations printer base...

Page 572: ...5 2 Service Manual 7526 Go Back Previous Next Connectors System board...

Page 573: ...FBR_AFE_SEN_ 22 FBR_AFE_SH_R 23 FB_PWRSVR_R 24 5V_F_AIO 25 5V_F_Aio 26 Ground 27 24V_FB_CDU 28 24V_FB_CDU 29 FB_LAMP_ON_R 30 Ground J2 UART MDC control 1 Ground 2 24V_MDC 3 24V_MDC 4 24V_MDC 5 Ground...

Page 574: ...V dc J6 Feedback Vortext UART MDC 1 Ground 2 MDC_RXD 3 MDC_TXD J7 AIO Flatbed CCD interface 1 CS_CUHD_R 2 Ground 3 SDI_CUHD_R 4 Ground 5 SDO_CUHD_R 6 Ground 7 CLK_CUHD_R 8 Ground 9 DSPIRQ 10 5V_AIO 1...

Page 575: ...9A 2 5V_PHY_I J49 Fan 1 5 V dc 2 5 V dc or Ground 3 FANSENSE JBIN1 Output bin sensor 1 VS12_BF 2 S_BIN_FB 3 Ground JBLW1 Cartridge blower 1 S_BLOW_FG 2 V18_BLOW_RTN 3 BLT_BLOW_FB JBOOT1 0 1 3 3 V dc 2...

Page 576: ...ER_FG 12 GD_FUSER_HALL_U JCARTS2 Cartridge 2 cartridge 3 motors 1 TG_CART3_FG 2 TG_CART3_HALL_U 3 5V_SW 4 TG_CART3_HALL_V 5 Ground 6 TG_CART3_HALL_W 7 Ground 8 TG_CART2_HALL_W 9 5V_SW 10 TG_CART2_HALL...

Page 577: ..._FEED_ENC 4 V24_PICK_M 5 Ground 6 Ground 7 V24_FEED_MTR 8 S_T1PK_ENC 9 V24_FEED_MTR 10 VS12_5V_ENC JFDS1 Feed thru sensor 1 VS12_FDS 2 S_FDS_FB 3 Ground JFMUSB1 Front panel USB port 1 Ground 2 USB_DM1...

Page 578: ...26 GD_HVPS_ID JINT1 Interlock switch 5v 1 VS24_JINT 2 Ground 3 VS24_INT JLVPS1 Low voltage power supply 1 24V_AIO 2 24V_AIO 3 5V_AIO 4 5_AIO 5 Ground 6 Ground JLVPS2 Low voltage power supply 1 5 V dc...

Page 579: ...VDO_SYNC_B 4 VDO_LENA 5 TG_VDO_SHADE_D 6 VS12_ 3 3VPH 7 TG_VDO_SHADE_C 8 VS12_JPH1 9 TG_VDO_SHADE_B 10 VS12_JPH1 11 TG_VDO_SHADE_A 12 Ground 13 D_VDO_D2 14 D_VDO_D2 15 Ground 16 D_VDO_D 17 D_VDO_D 18...

Page 580: ...VDO_LADJ_AB JSB1 Cartridge SB 1 S_SB_Y 2 Ground 3 S_SB_C 4 Ground 5 S_SB_M 6 Ground 7 S_SB_K 8 Ground JSEC1 Security jumper 1 V2 2 Ground 3 Ground JT1 Test Connector 1 Ground 2 Ground JT12 Manual Rese...

Page 581: ...1 input NMT sensors 1 Ground 2 S_TRAY_INPUT 3 VS12_TRAY_INPT_LED 4 VS12_TRAY 5V_NMT 5 S_TRAY_NMT 6 Ground JTWF1 Winflex serial port engine 1 Ground 2 TG_RXD1 3 TG_TXD1 4 5 V dc or Ground JUSB1 USB dev...

Page 582: ...5 12 Service Manual 7526 Go Back Previous Next...

Page 583: ...switch and the power supply Damaged missing or altered covers especially in the area of the top cover and the power supply cover Possible safety exposure from any non Lexmark attachments Lubrication s...

Page 584: ...nter print quality problems such as streaks on copied or scanned images 1 Slightly dampen a soft lint free cloth or paper towel with water 2 Open the scanner cover 3 Wipe the areas shown and let them...

Page 585: ...timal printing performance Residue on the ADF parts may cause print quality issues and false 290 294 paper jam messages 1 Turn the printer off 2 Slightly dampen a soft lint free cloth with water 3 Ope...

Page 586: ...7 Wipe the entire surface under the ADF cover including the two small white rollers 8 Wipe the separator pad and then wipe the pick pad 9 Pull the flap up as shown and then wipe the sensor behind it 1...

Page 587: ...10 minutes 3 Remove all four toner cartridges Do not remove the photoconductors for this procedure 4 Locate the four printhead lenses 5 Clean the lenses using a can of compressed air Warning Potential...

Page 588: ...6 6 Service Manual 7526 Go Back Previous Next...

Page 589: ...units packaged together and identified by the part number NS Not shown in the Asm Index column indicates that the part is procurable but is not pictured in the illustration Model information used in...

Page 590: ...7 2 Service Manual 7526 Go Back Previous Next Assembly 1 Covers printer 11 12 D B C A 1 2 4 9 5 6 3 15 14 13 7 8 10 16 17...

Page 591: ...ss cover links slider cam 1 D Bin full sensor with cable and flag 1 7 40X5287 1 1 Cooling fan filter 8 40X5169 1 1 Rear frame cover 9 40X5172 1 1 Right cover 10 40X5184 1 1 Front access door cover ass...

Page 592: ...7 4 Service Manual 7526 Go Back Previous Next Assembly 2 Front 5 2 3 4 7 9 11 A B D 8 10 12 E 13 C G F F 1 6...

Page 593: ...ear MP feeder reduction gear MP feeder duplex reduction gear MP feeder drive cover 5 40X6319 1 1 Cranklift spring and metal clip 6 40X5223 1 1 Paper pick assembly 7 40X5152 2 2 Pick tire 8 40X5273 1 1...

Page 594: ...7 6 Service Manual 7526 Go Back Previous Next Assembly 3 Right 1 2 3 4 5 6...

Page 595: ...ht Index P N Units mach Units FRU Description f3 1 40X5290 1 1 EP drive assembly 2 40X5182 1 1 Low voltage power supply 3 40X5126 1 1 Motor driver card 4 40X5131 1 1 MP feeder duplex motor 5 40X5128 1...

Page 596: ...7 8 Service Manual 7526 Go Back Previous Next Assembly 4 Rear...

Page 597: ...cord 8 ft Austria Belgium Catalan Czechoslovakia Finland France Germany Greece Hungary Ireland Italy Netherlands Norway Paraguay Poland Portugal Russia Spain Sweden Turkey United Kingdom NS 40X0271 1...

Page 598: ...7 10 Service Manual 7526 Go Back Previous Next Assembly 5 Left 4 4 places 1B 4 places 4 places 1A 1C 4 places 4 places 3 8 places 4 places 1G 1E 1F 5 1D 2...

Page 599: ...n PCD contact spring B Torsion CR contact spring C Contact spring cap D Charge roll contact spring E HVPS TAR contact spring F HVPS doctor developer contact spring G HVPS Db contact spring Screw 2 40X...

Page 600: ...ack Previous Next Assembly 6 Top Index P N Units mach Units FRU Description 6 1 40X5109 1 1 Cooling fan 2 40X5122 1 1 Color on demand assembly 3 40X5130 1 1 Top cover camshaft assembly 4 40X5108 1 1 C...

Page 601: ...bles including A Cartridge motor 1 fuser cable 1 B Fuser AC cable 1 C Fuser DC cable 1 D MP feeder duplex motor cable 1 E Transport motor cable 1 F High voltage power supply cable 1 G Cartridge motor...

Page 602: ...7 14 Service Manual 7526 Go Back Previous Next Assembly 8 Covers scanner 6 8 9 10 5 7 11 14 1 2 13 3 4 12...

Page 603: ...document input tray 4 40X5193 1 1 ADF paper stop 5 40X5194 1 1 Pressure plate cover 6 40X5198 1 1 Flatbed filter door cover 7 40X5218 1 1 Flatbed air filter 8 40X5207 1 1 Scanner rear cover 9 40X5205...

Page 604: ...7 16 Service Manual 7526 Go Back Previous Next Assembly 9 Automatic document feeder ADF...

Page 605: ...1 1 Paper present LED card 4 40X5209 1 1 ADF hinge left or right 5 40X5166 1 1 ADF exit sensor with cable 6 40X5220 1 1 Scanner ICC card 7 40X5189 1 1 ADF pick pad 8 40X5165 1 1 ADF static ground brus...

Page 606: ...7 18 Service Manual 7526 Go Back Previous Next Assembly 10 Flatbed scanner...

Page 607: ...d cave LED cover clear 4 40X5213 1 1 Flatbed CCD lamp assembly 5 40X5212 1 1 Flatbed CCD carrier module including lamp assembly 6 40X5214 1 1 Carriage transport belt with clip 7 40X5219 1 1 Scanner MD...

Page 608: ...xt Assembly 11 Optional 550 sheet media drawer and tray Index P N Units opt Units FRU Description 11 1 40X5140 1 1 550 sheet tray option drawer and tray assembly 2 40X5168 2 2 Pick tire 550 sheet tray...

Page 609: ...Next Assembly 12 Optional special media tray assembly Index P N Units opt Units FRU Description 12 1 40X5142 1 1 Special media assembly including tray 2 40X5152 2 2 Pick tire 550 sheet drawer 3 40X51...

Page 610: ...7 22 Service Manual 7526 Go Back Previous Next Assembly 13 Optional high capacity input option HCIT 4 2 1 6 5 7 8 11 12 10 13 14 3 9...

Page 611: ...4 40X5149 1 1 HCIT rear cover 5 40X4585 2 1 Tray latch with spring 6 40X5159 1 1 HCIT controller card assembly 7 40X4587 1 1 Slide assembly with springs 8 40X5147 1 1 HCIT right cover 9 40X5155 1 1 El...

Page 612: ...7 24 Service Manual 7526 Go Back Previous Next Assembly 14 Options and features...

Page 613: ...NS 40X5302 1 1 512 MB SDRAM NS 40X5303 1 1 1024 MB SDRAM NS 40X5704 1 1 256 MB flash card NS 40X5969 1 1 Korean font card NS 40X5971 1 1 Traditional Chinese font card NS 40X5970 1 1 Simplified Chinese...

Page 614: ...7 26 Service Manual 7526 Go Back Previous Next...

Page 615: ...mpensator See paper pick mechanism B bellcrank left bellcrank 4 123 parts catalog 7 5 right bellcrank 4 164 bezel parts catalog 7 2 removal 4 32 bin full sensor assembly removal 4 60 Black Only Mode 3...

Page 616: ...est 3 18 Top Margin 3 20 Event Log Clear Log 3 29 Display Log 3 28 Print Log 3 28 exit diagnostics 3 29 Hardware Tests Button Test 3 15 DRAM Test 3 16 Panel Test 3 15 Motor Tests Align Motor Test 3 12...

Page 617: ...front access cover assembly removals 4 20 front cover locks 3 49 front door assembly left front cable removal 4 106 parts catalog 7 4 removal 4 103 right front cable removal 4 110 fuser AC cable remo...

Page 618: ...42 paper support output bin extension cover 4 38 paper tray parts catalog 7 4 parts catalog automatic document feeder ADF 7 16 cable parts packet 7 13 covers printer 7 2 covers scanner 7 14 flatbed sc...

Page 619: ...37 flatbed with glass cover 4 239 input tray 4 242 scanner front cover 4 243 scanner left cover 4 244 scanner rear cover 4 245 scanner right cover 4 246 CPU fan 4 85 duplex reference edge guide 4 86 e...

Page 620: ...ad error 2 42 120 xx fuser error 2 43 140 xx Autocomp motor error 2 46 142 xx motor error 2 47 142 xx fuser motor error 2 47 143 xx motor error 2 48 144 xx motor error 2 50 145 xx 906 05 906 08 motor...

Page 621: ...cover parts catalog 7 2 removal 4 48 top cover camshaft assembly parts catalog 7 12 removal 4 186 transfer contact assembly parts catalog 7 10 transfer module parts catalog 7 4 removal 4 191 service c...

Page 622: ...I 8 Service Manual 7526 Go Back Previous Next...

Page 623: ...Tray latch with spring 7 23 40X4587 Slide assembly with springs 7 23 40X4593 HCIT drawer slide assembly 7 23 40X4596 Power cord 8 ft Brazil 7 9 40X4597 Card reader cable 7 25 40X4598 Smart card cover...

Page 624: ...ver 7 3 40X5174 Rear cover 7 3 40X5175 Top cover assembly 7 3 40X5176 Top access cover assembly 7 3 40X5177 Operator panel bezel 235 275 7 3 40X5178 Operator panel bezel 436 476 7 3 40X5179 Operator p...

Page 625: ...287 Cooling fan filter 7 3 40X5288 Operator panel bezel 496 7 3 40X5289 Operator panel bezel 295 7 3 40X5290 EP drive assembly 7 7 40X5291 ADF skew card 7 17 40X5301 256 MB SDRAM 7 25 40X5302 512 MB S...

Page 626: ...I 12 Service Manual 7526 Go Back Previous Next...

Search results

Summary of Contents for X734DE

Reviews:

Related manuals for X734DE

Brands by name

Popular brands

Lexmark X734DE, Service Manual

Search results

Summary of Contents for X734DE

Reviews:

Related manuals for X734DE

Brands by name

Popular brands