Lexmark C91x Printer Service Manual
Contents
1. esse 4 34 Operator panel removal 00 00s eee e eee eee 4 34 Paper carrying frame removal leere 4 35 Paper carrying roller removal 3mm temas SES win 4 36 Paper feed frame removal 0000ee eee e eee eee eee 4 37 Paper feed roller removal seen ee eee eens 4 38 Paper present sensor removal lese 4 38 Paper remaining sensor removal leues 4 39 Paper size sensor board assembly removal 4 39 Power supply 1 remoyval ssssscu stc srt ds een 4 40 Power supply E 2 222 rietRe ke ees ane 4 41 Power Switch removal samet xE ECT STE TAS 4 42 Printer controller removal ellen 4 43 Printhead controller board removal Lese 4 44 Registration sensor removal leere 4 48 Right slide tall removal amp avo xm rry RARI ER RR 4 49 ker Ell aer ege ere EE sue 4 49 5ensor board remoeoVval ssseusss ue tees e t mananan 4 50 Stay armi removal 22252 asi c eim e ah RII uus 4 51 Sub frame removal e SEELEN NEES EE YE 4 52 Sub frame F1 sub frame F2 removal ses 4 53 POP tnit removal iesu tems ee I REI ted SET 4 55 Transier belt removal 5525L em Ee ERST Eese rds 4 56 Turn guide cover sensor removal Lese 4 65 Upper fati remaval a iua mean e ded 4 66 Options removals 4 67 Expansion paper feeder removal sre 4 67 vii 5055 xxx Duplex removals EE EELER EELER E 4 75 Duplex unit separation removal EE iere 4 75 Duplex uni2. 5055 xxx Image quality troubleshooting Lees 2 88 Print quality problems 22 2 2222 2 88 Options SONICS EEN 2 98 Diagnostic aids cc cee close rcu rf kk Rex Rx ve 3 1 Power On Self Test sequence lelles 3 1 Using the operator panel sss ene elite EPA 3 2 Operator panel DultonB xau xeu cade RE rr EET AS 3 3 Printing the menu settings llle 3 4 Operator menu disabled 2389 EE AEN REEL AER e 3 4 Menu OVervIeW x25 css pese EE RIA 3 4 Diagnostic MOOB sescenti s rnm es E nau Ree es 3 6 Adjustment example eonun mw a SE E 3 8 Print tests 25225934 0 Fre quedes RAPERE I d RET 3 10 HHardwate Ee d 22 edo EE E 3 12 High capacity feeder Tests 3 18 Finisher 18818 Ss sec uec REDE EE ESQ idee 3 20 DevicalosiS auisa he cce EE SUUENRA EP ePs eed 3 23 Diagnostics printer setuD ceic eIeze AS 3 26 Dalali 22229 ppm RR GUEEERGURCRCRORARURCE 6 REENEN 3 26 Viewing and resetting the drum counters 3 28 Diagnostics error Jog as e ces eene reed nera E Eee Qe 3 31 Theory of operation 3 33 Processes and configuratlon eese cmo E rxux TRE EE 3 33 Electrophotography process eeseeeeerse 3 33 Developmbsit UNIT 529993 c2 eee QRCKeR cs TERRE RA LER 3 34 Trsnster unii ssi iio em eere REFERS SPP he 3 34 Cleaning Uit ema srisrcst ER PIA HEAR RES ES 3 35 Paper Teeding TUSING as erit e dere Ed ee RETE 3 35 Drive Sysleifi ssescchostcessrcesttreqiesdstrid
3. For the complete PDF manual please visit www LaserPros com Service Manual SSS eee 5055 xxx e Table of Contents e Start Diagnostics e Safety and Notices e Trademarks e Index LEXMARK 5055 xxx Edition October 2004 The following paragraph does not apply to any country where such provisions are inconsistent with local law LEXMARK INTERNATIONAL INC PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This publication could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in later editions Improvements or changes in the products or the programs described may be made at any time Comments may be addressed to Lexmark International Inc Department D22A 032 2 740 West New Circle Road Lexington Kentucky 40550 U S A or electronically mailed e mail to ServicelnfoAndTraining Lexmark com Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you You can purchase additional copies of publications related to this product by calling 1 800 553 9727 In other countries
4. 7 56 Assembly 26 Pinisher foed EE 7 58 Assembly 27 Finisher feed 2 Leesls 7 62 Assembly 28 Finisher elevator leeess 7 64 Assembly 29 Finisher electronics Lee 7 66 Assembly 30 Finisher docking 1 7 68 Assembly 31 Finisher docking 2 wince RR RR Rn 7 70 Assembly 32 Miscellaneous options es 7 72 Assembly 33 Finisher parts packet PIN DEPO480 EE 7 81 Je qe T Li Part numberindex ee n du A ERRARE Ee E eves l 9 For the complete PDF manual please visit www LaserPros com X Service Manual
5. contact your point of purchase Lexmark and Lexmark with diamond design are trademarks of Lexmark International Inc registered in the United States and or other countries ImageQuick Optra Forms and PrintCryption are trademarks of Lexmark International Inc PCL6 is a registered trademark of the Hewlett Packard Company PostScript is a registered trademark of Adobe Systems Incorporated Other trademarks are the property of their respective owners 2003 2004 Lexmark International Inc All rights reserved UNITED STATES GOVERNMENT RIGHTS This software and any accompanying documentation provided under this agreement are commercial computer software and documentation developed exclusively at private expense P N 12G9292 5055 xxx Contents Safety information sslleleseeleeeeeeeeeee xi POAC vosiecu ER enu ER Xu ERE UE PARE REQUE ERE GE xvi Definitions EE 1 xvi General information 00 0c eee eee eee eee 1 1 OVEIVIOW eg E EE EES 1 1 Flesol tlOI usui mmm x EELER eae ae 1 1 Model differences usse REESEN RR EUR x ER e 1 1 Technical specifications lllesseeess 1 2 Toner darknessSsss cae cupi ett kv ra p RE EX gues 1 2 Color correction settings ssec hm mmm 1 2 Physical specifications and weight LL 1 3 Print speed and performance NEE isi ee 1 4 Pernorman E seswsaceccex dE eR eRRG d EIIEN wade sass 1 5 Time to irst prinla i2icieczke nk RR 1 5 PIODGGSSOL x cxesd
6. xac EE E Vaga X C dede ga E ES E EEUE 1 5 DULY CYCIO sssr cece ence eee REESEN ERA 1 5 Pnntermeomoty EE 1 6 Resident e TEE 1 7 Paper and media specifications 1 8 Input and output configurations NENNEN NEE EEN 1 8 Media size supported wo cc SNE iacu rrr 1 10 Input media types and weights lesse 1 15 Output media types and weights l Ls 1 16 Input capacity by media and source sees 1 18 Output capacity by media and source LL 1 19 Media guidelinas 2 2lcu lernt 1 20 PEIDUBIOd sed es kawed Quas FN dau du Sake ew E EE 1 21 Options and features uleus 1 22 CONNCCUVITY osuere Ee DEC EE Ep 1 23 elle Ce asse ur ARR RADAR FRU E Kae RUR RT NOR HR 1 23 Optional internal local connections LLL 1 23 Network connections sss ire PTRERERPURERETETTCSRSITAS 1 24 Me EE 1 25 Operating BySlelliS reeL tse 1 25 5055 xxx Power and electrical specifications 1 26 Power requirements EE EIER EES s x E A XO EOS SOR UE ed 1 26 Electrical specifications 2 s0c2ss dene weed ke RR a 1 26 Operating Clearances s us ENNEN even ion ENN ER NN as 1 27 Enivironment EE 1 27 Printer temperature and humidity a a a aaansannnnnnnno 1 27 Maintenance approach 1 29 Standard inspection and cleaning procedure 1 29 RUIN parts amp ssseccs nnnm mre xe 1 30 Service recommendations 000200 cece eee eee eee 1 30 i
7. Rum sabe NEE E ELSE 6 2 Lubricants and Cleahers esc i RR ERI EE ERES 6 2 Parts catalogi suci ospita ecco bes hekh x b ERE Epp i puros 7 1 How to use this parts catalog lesse 7 1 Assembly 1 GOVSIS EE 7 2 Assembly 2 EE 7 4 Assembly a GUVBIS EE 7 6 Assombly 4 COVES 4 onic sida Ress re ERA SI RI EAS 7 8 Assembly 5 Govers EEN 7 10 Assembly 6 Upbet UDIE ausser ERA TERT ER UIS 7 12 Assembly 7 BaSe T senesdesteees ee IeRIeAP REST D 7 16 Assembly 8 Base 2 ssesesrb TREE RA SERE RUN AS 7 18 Assembly 9 Base 3 2 9 1f meri ftre m me Rn 7 20 5055 xxx Assembly 10 Electrical 1 222 222 7 22 Assembly 11 Hipboard l iosl esee err hm 7 26 Assembly 12 Fuser UNI susce Rer ISTE EPPLDET RSS 7 28 Assembly E Me dusk re rna Aa 7 30 Assembly 14 Expansion feeder 1 7 32 Assembly 15 Expansion feeder 2 LL 7 34 Assembly 16 Duplex unit 1 eee s 7 38 Assembly 17 D plex UNT 2 2 mec Rc htec RUE Te T 7 40 Assembly 18 High capacity feeder 1 7 42 Assembly 19 High capacity feeder 2 7 44 Assembly 20 High capacity feeder 3 Ls 7 46 Assembly 21 High capacity feeder 4 Lee 7 48 Assembly 22 High capacity feeder 5 7 50 Assembly 23 High capacity feeder 6 7 52 Assembly 24 Finisher covers elleeelse 7 54 Assembly 25 Finisher frame 523 ace ENEE seeder
8. dee e 3 36 Paper T8edlhntl WEE 3 37 Cassette paper feeder cece eee eee eee 3 37 Multipurpose feeding lesen 3 38 Registration ON as end sese dh vrES Ur RUE REC REESE 3 38 oepsraudon UE EE 3 39 E le UE 3 40 DENOV eic Orden serius EE 3 41 ET 3 42 Bok Dee e EE 3 43 Expansion papar faeder uunc niam cuu EV ware 3 43 5055 xxx Duplex unit eene EELER EE EE A 3 44 Paper weight 22 4 24 rn eR Rn RR max sm RM 3 45 Clearing papel IalTiS es sues spe Rime m Er ER TERR T 3 46 Highiscapacity feeder HGF sss e Eeer er nnn 3 52 Maintenance Mode iioi iss RI E IRR IRE Uer A 3 60 ell ENT 3 61 Finisher installation 3 73 Attaching the docking plate and guide rail 3 73 Combining the finisher and stand 3 75 Attaching the DINS a EINEN ROS RACE Y ame ws 3 79 Aligning the finisher and printer 00e0e eee ee eeee 3 80 Adjusting hu ENEE 3 88 Aiacting Rue EE 3 90 Hole punchiadjustmert s seen m Rr tS EE 3 94 Repair information see EIERE rur EES eee 4 1 Service DIecautlofS 2s cese esoreerec tere meses E 4 1 Handling printed circuit boards e SNE e NEES EENS EE 4 1 AGIUSUMONIS lt 252 6 640c 06 fees Ree ROI E PER AS 4 3 High capacity paper feed timing belt adjustment 4 3 Removals 2 222 ex tees demas ORE EEUU ES RE RR RES 4 4 COVE Op remiovalsss d uds pace urbscunbirebeesc rk see 4 4 Cover front removal 223 232 22 2 c ee agate sade ee nd Rag 4 5 Cover front left remova
9. l icc cide deawad a Rr XR AER 4 5 Cover rear removal size isu pude iv eme cci 4 6 Cover solenoid removal eene 4 6 Cover left side removal Jueces Re EE 4 7 Cover right side removal siscctesendeiedeidodededwaead 4 8 Gover RIP board removal 2 ku aho a atn 4 9 Tay paper exit TEMOVAl aps s pce aeo tot CAR cie tre d 4 10 Belt up down clutch removal 4 10 Belt up down detection sensor removal 4 11 Cassette guide removal cece eee eee eee 4 12 Connector duplex unit removal 222 22 9 e93 ere ae 4 13 Separation fingers removal lseeeee 4 14 Sensor cleaner removal ace sicoudieieisaierienasaawad 4 14 Drive gear unit sensor assembly removal 4 15 Drive motor assembly removal e 4 16 Electronic box removal hne Rh nh 4 17 Fanning pad removal 25223 xx vins m naim torcia 4 19 vi Service Manual 5055 xxx Front cover open switch actuator removal 4 20 S TemOVal sa quetaue m ud GP Rap E pd GER Jam EE GE 4 21 High voltage power supply board HVU removal 4 23 LED printhead reimoVales esses teer rar Ra Re 4 24 Eraser removal EE 4 27 Lock handle assembly removal a an snasasnnnnnnnnnnn 4 28 Main drive unit removal 0 00 eee eee eee eee 4 29 Main nit tan removal 2 save tbe ERNEST EES wan 4 32 Motor drive board removal 20020s eee e cece eens 4 33 Multipurpose feeder paper present sensor removal 4 33 Multipurpose feeder tray removal
10. rge brush removal 4 102 Staple unit removal gg Reie aridi SER EA 4 102 Straight paper exit discharge brush removal 4 103 Straight paper exit roller removal ss 4 103 Timing belts 1 and 2 removal eee eee 4 105 Tractor belt removal 2 2 se mem mm mE Rma 4 106 Tractor drive motor assembly removal 4 108 viii Service Manual 5055 xxx Locations 2 2 x Rx R RARE EIN ENN 5 1 Covers dagta ecien doi desse iu den IR GE P somes deed 5 1 Major ee 0 TE 5 2 Sensor and switch locations ssszse ura hr nua 5 4 Component locations 22x rm mer Rm eee 5 6 Printer controller board EES n rrr mun 5 8 Printer controller board connectors ee eee eee 5 9 Printhead controller board ee VEER EES EES Rn 5 12 miglior 5 13 Power source unit 1 board ee EIERE hn 5 14 Power source unit 2 board enee EENS EELER A 5 14 High voltage power supply board ee 5 15 Senso DOS EE 5 15 Expansion paper feeder controller board 5 16 Duplex nit controller board urere 5 16 Motor drive Doald 2x22 v pos EP EIcRRET GS E EE E 5 16 Size sensorboartl i ecleuc e rhe rrr exea nns 5 17 High capacity feeder HOF 222 2l rui RR RR 5 18 High capacity paper feed configuration 5 18 Electrical parts layout ax uasa anette ei eee ce ri te 5 19 Driving parts layout NEE e rmn n 5 20 Finisher lOGanonS EE 5 21 Preventive maintenance 6 1 Maintenance EE 6 1 Periodic maintenance siissdus
11. t removal sumus ee eee i ERR EET 4 76 Duplex timing belt removal cece eee eee 4 76 Duplex pressure roller and solenoid removal 4 77 Duplex feed roller and solenoid removal 4 78 Duplex side fence motor assembly side fence removal 4 79 Duplex paper carrying motor removal 4 80 High capacity feeder HCF removals 4 81 HCF COVEIS removal ux ssauxc sax n aU CR Ro UR RR AUR DR 4 81 HCF call roller paper feed roller reverse roller removal 4 82 HCF pickup solenoid removal usls 4 83 HGF tray motor romoval 23 amr RRReT4 ee RR RE RR OE 4 86 HCF paper level sensor removal eee ewes 4 87 HCF power supply removal leeren 4 88 Finisher removals 5 5 succ RR RE see daw ee 4 89 External covers removals esos m rns 4 89 Finisher control board removal lll 4 90 Elevator motor removal EEN me 4 91 Feed motor assembly removal slslees 4 91 Hole punch removal enee eret Rete 4 92 Inverter paper exit discharge brush removal 4 93 Inverter paper exit roller removal Lees 4 93 JOGGING unit Femoval EE 4 95 Path select gate removal ege hmm 4 96 Patting roller removal sss kei eR ee ad dw maces e 4 97 Power supply removal s cciee ri ttu 4 99 Registration roller removal sce esate kr ux 4 100 Registration roller clutch removal 4 101 Stack area discha
12. v ge m 1 31 Serial number configuration ID and part number 1 32 ADDEGVIBUDES audi cric mao E RIRs keeles ds ees used dm 1 33 Diagnostic information 2 1 Adjustments and procedures following parts replacement 2 1 ciclo c D rnm 2 3 Initial CHECK se za2os ka soStqSLETADR GU RGSSRSZiPE aac 2 3 Printerme ssages sur EE eR REG xs RS i 2 4 Service error message tables 000 cece eee eens 2 4 Attendance messages lleleeeseeeeeeee 2 34 Maintenance analysis procedures MAPS 2 54 ENTREE 2 63 Service CHECKS 215222212026 22psiosd Esc adr aneor as 2 68 Drive 1 DC motor service check e eee eeee 2 68 Drive 2 stepper motor service check EE ENEE Ek 2 68 Duplex unit service check EEN cese 2 69 Expansion paper feed service check esee 2 69 Face down stacker full service check 2 70 High capacity feeder HCF service check 2 70 Fitusn r service Check eege ge 2 71 Marks on paper service check e 2 72 Operator panel service check 2 73 Paper carrying Service CheCk 6 02 enc keene eee eee ee 2 74 Paper exit face up service check 2 82 Paper skew service check 2 83 Paper tray missing service check 2 83 Photodeveloper missing service check 2 84 Power supply service check e 2 85 210 Staple jam service check use ENN rnm n 2 86 Transfer belt up down service check L 2 87 iv Service Manual
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