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Lexmark X7500 Service Manual

1. sonari rech RE 1 23 Scanner CODIFOL ur HEV Nr d 1 24 Mechanical Dive iscsi eee EE raies dE 1 28 Scanning MelHlods Lams Land owes met ER 1 30 Diagnostic Information baisers Edd 33 2 1 ORL EE 2 1 ielerins DP 2 2 MED Controller Cage EITOIS ex rn m ques 2 4 2 7 Diagnostic 3 1 DADF Repair Procedures 4 1 Ee EH 4 1 Notations the Removal Replacement text 4 2 EE EA E 4 3 DADF Assembly Height Adjustment 4 3 DADF Assembly Paper Skew Adjustment 4 4 Adjusting the Position of Full Rate Half Rate Carriages 4 6 Contiguring the MED Controller Card DE done Rb see 4 8 DADF Repair Procedures dane acess 4 9 DADF Assembly Removal seen 4 9 DADF Front Cover Handle and Magnet Removal 4 11 DADF Cushion Removal dem o ao ede Rr 4 12 DADF Exit Reverse Solenoid Removal 4 14 DADF Input Tray Assembly Removal 4 15 DADF Jam Access Door Assembly Removal 4 16 DADE
2. ke o o 2 e P P 555 cic c 99 8 C VENNE VE W lt DD bo E OM 5 2 Service Manual 4036 501 P J Connected to Other end connected to P J7 DADF controller card assembly P J8 DADF controller card assembly P J9 DADF controller card assembly P J11 PWBA size P J4 DADF controller card assembly P J12 DADF document in sensor P J4 DADF controller card assembly P J13 PWBA size P J4 DADF controller card assembly P J14 P J22 DADF pre registration 2 sensor P J6 DADF controller card assembly P J23 DADF pre registration 1 sensor P J15 DADF pickup sensor P J8 DADF controller card assembly P J16 PWBA tray sensor P J6 DADF controller card assembly P J17 Stamp solenoid P J3 DADF controller card assembly P J18 DADF pick up clutch P J3 DADF controller card assembly P J19 DADF large roll clutch P J3 DADF controller card assembly P J20 DADF exit reverse clutch P J3 DADF controller card assembly P J22 DADF pre registration 2 sensor P J6 DADF controller card assembly P J23 DADF pre registration 1 sensor P J6 DADF controller card assembly P J24 DADF registration sensor P
3. 4 10 Service Manua 4036 501 DADF Front Cover Handle and Magnet Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information 2 Remove the two 2 screws in the DADF handle Note The left screw in the DADF handle is shorter 3 Remove the DADF handle 4 Remove the two 2 screws in the DADF front cover 5 Remove the DADF front cover 6 Remove the screw in the DADF magnet 7 Remove the DADF magnet Note When reinstalling the DADF magnet the white paint side must face out DADF Front Cover Magnet DADF Repair Procedures 4 11 4036 501 DADF Cushion Removal 1 Open the DADF Assembly Note The DADF cushion is stuck with two sided tape 2 After removing the DADF cushion completely remove the two sided tape remaining 3 Remove the DADF cushion 4 12 Service Manual 4036 501 To replace the DADF cushtion 1 Lay the DADF cushion with seals facing up on the platen glass of the scanner 2 Peelthe seals and align the DADF cushion to the rear of the scanner 3 Lower the DADF assembly and push against the DADF cushion DADF Repair Procedures 4 13 4036 501 DADF Exit Reverse Solenoid Removal ape N Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Disc
4. 5 8 DADF Master Wiring Diagram EEN seek eu edad 5 9 Scanner Master Wining Diagram pedo de dns abus 5 17 iv Preventive Maintenance Parts Catalog 1234 XXX OTRO Maintaining Your Multifunction Product MFP 6 1 CISaNingthetouch Screen cup Ee di RANGER ANS 6 1 Cleaning the scanner bed 6 1 Cleaning the scanner rollers 6 1 Cleaning the scanner pick pads 6 3 SNE EE ET 7 1 Howto Use This Pans Catalog ske 7 1 Assembly 1 DADF Cover and Solenoid 7 2 Assembly 2 DADF Cover Switch and Hinge Rear 7 4 Assembly 3 DADF Control Board and DADF Registration Roll Drive Motor Assembly 7 6 Assembly 4 DADF Separator Pad Asm and Paper Stop 7 8 Assembly 5 DADE Pick Roller das 7 10 Assembly 6 DADF Document Registration 7 12 Assembly 7 DADF Wiring Harness 7 14 Assembly 8 Scanner Platen Glass and IPS PWB 7 16 Assembly 9 Scanner Lens Assembly CCD 7 18 Assembly 10 Scanner Carriage Motor and Cable 7 20 Assembly 11 Scanner
5. 7 12 Service Manual 4036 501 Assembly 6 Ref Units Description 1 12G6879 1 Guide DADF Upper Paper 2 12G6883 2 Bearing Roller Shaft 3 12G6880 1 Sensor Registration 4 12G6881 1 Spring Tension Roller 5 12G6882 1 Roller Tension 6 12G6884 1 Gear DADF 3 7 12G6885 1 Gear DADF 4 Parts Catalog 7 13 4036 501 Assembly 7 DADF Wiring Harness 2 ESA 7 14 Service 4036 501 Assembly 7 Ref en Units Description 1 12G6896 1 J16 J30 Wiring Harness 2 12G6893 1 J7 J26 J27 J28 Wiring Harness 3 12G6889 1 14 J13 Wiring Harness 4 12G6888 1 J14 J22 J23 Wiring Harness 5 12G6894 1 J33 J35 Wiring Harness 6 12G6890 1 44 J12 J13 J29 Wiring Harness 7 12G6887 1 J2 J32 Wiring Harness 8 12G6891 1 J3 J17 J13 J19 J20 Wiring Harness 9 12G6836 1 J9 J30 Wiring Harness 10 12G6895 1 48 J15 Wiring Harness 11 12G6892 1 J6 J14 J25 J31 J35 Wiring Harness Parts Catalog 7 15 4036 501 Assembly 8 Scanner Platen Glass and IPS PWB 7 16 Service Manual 4036 501 Assembly 8 Ref Units Description 1 12G6807 1 Plate Flatbed Center Platen Glass 2 12G6808 1 Plate Right 3 12G6809 1 Card Assembly Scanner Motor 4 12G6810 1 Switch Assembly Plate 5 1206811 1 Sensor Assembly Registration 6 12G6812 1 Sensor Assembly Flatbed Open 7 12G6813 1 Card Assembly Scanner
6. Service Manual Lexmark X7500 4036 501 Table of Contents e Start Diagnostics e Safety and Notices Trademarks Index Manuals Menu 4036 501 Edition October 2001 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 PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This publication could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in later editions Improvements or changes in the products or the programs described may be made at any time Comments may be addressed to Lexmark International Inc Department D22A 032 2 740 West New Circle Road Lexington Kentucky 40550 U S A or e mail at ServicelnfoAndTraining Lexmark com Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you You can purchase additional copies of publications related to this product by calling 1 800 553 9727 In other countries contact your point of purchase Lexmark and L
7. User interface RESET User interface communication signal user interface reset User interface User interface communication signal RESET user interface reset SCNRESET communication signal reset SCNRESET communication signal reset SCNSTS communication signal status SCNSTS communication signal IIT status SCNCMD communication signal command SCNCMD communication signal command PRTLSYNC Fast scan synchronized signal from the IOT PRTLSYNC Fast scan synchronized signal from the IOT SCNVCLK video scanning clock SCNVCLK video scanning clock SCNPSYC slow scan synchronized signal SCNPSYC slow scan synchronized signal SCNVVALD fast scan synchronized signal SCNVVALD fast scan synchronized signal SCNVDO scanning video data 0 SCNVDO scanning video data 0 SCNVD1 IIT scanning video data 1 SCNVD1 IIT scanning video data 1 SCNVD2 IIT scanning video data 2 SCNVD2 scanning video data 2 Connector Locations 5 31 4036 501 Signal Name Description SCNVD3 IIT scanning video data 3 SCNVD3 IIT scanning video data 3 SCNVD4 IIT scanning video data 4 SCNVD4 IIT scanning video data 4 User interface CMD User interface communication single use
8. 4 44 DADF Upper Paper Guide Removal 4 45 DADP 4 Gear REMOVA 4 46 Scanner Repair Procedures iR iG Sor RERO AE dba ds 4 48 User Interface Panel Removal 4 49 Flatbed Scanner Top Cover Assembly Removal 4 50 Flatbed Center Platen Glass Plate Removal 4 52 Left DADF Platen Glass Plate Removal 4 54 Scanner Main Drive Motor Assembly Removal 4 55 Scanner Motor Card Assembly Removal 4 56 Flatbed Open Sensor Removal 4 57 Registration Sensor Assembly Removal 4 58 Plate Switch Assembly Removal 4 59 Scanner System Card Assembly Removal 4 60 Charge Couple Device Card Assembly Removal 4 62 Automatic Paper Size Sensor Removal 4 64 Full Rate Carriage Lamp Assembly Removal 4 65 Cable Assembly Scan Rear 4 66 Full Rate Carriage Lamp Cable Removal 4 71 Connector Locations ETTE geg 5 1 eege e He died dona dodi d TE ars 5 2 Wiring Diagrams and Signal Information
9. Slightly lift the DADF pick roller assembly Slide the front bearing toward the inside until it releases from the frame Pull out the shaft toward the rear Lift the roller assembly from the left side and remove ONO oR OM DADF Repair Procedures 4 41 4036 501 Registration Sensor Removal 1 BR N 4 42 Service Manual Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Remove the DADF jam access door assembly See DADF Jam Access Door Assembly Removal on page 4 16 for more information Disconnect the connector P J24 in the DADF registration sensor Release the harness from the three 3 clamps Remove the screw from the bracket Remove the bracket together with the DADF registration sensor Registration Sensor 4036 501 DADF Gear 3 Bearing Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF rear cover See DADF Rear Cover Removal on page 4 19 for more information Remove the DADF main drive motor assembly See DADF Main Drive Motor Assembly Removal on page 4 28 for more information Remove the DADF left hinge See DADF Left and Right Hinge Removals on page 4 22 for more information Press the large roll from the u
10. CMD DADF command signal CMD DADF command signal STA DADF status signal STA DADF status signal SCANHRDY DADF ready of scan signal SCAN STA RT DADF start of scan signal DADF ATC DADF attachment signal Connector Locations 5 29 4036 501 Scanner System Card IPS lt gt 1 4 SCANNER SYSTEM CARD 5 30 Service Manual c E o s UISTS UISTS 3 Die SPARE1 4 SPARE1 UIRESET EJ UIRESET IS SCNRESET SCNRESET BI SCNSTS 10 D SCNSTS 11 Die SCNCMD i2 SCNCMD 13 SI PRTLSYNC SCNVCLK ig SCNVCLK 17 IPSI SCNPSYC SCNPSYC 19 DI SCNVVALD 20 D SCNVVALD SCNVDO 22 D SCNVDO IDI SCNVD1 24 D SCNVD1 25 ID SCNVD2 26 DI SCNVD2 isl SCNVD3 28 SCNVD3 2 SCNVD4 SCNVD4 I UICMD En UICMD A SPARE2 le SPARE2 a AY AY FAN AY a a FA Fa a Fa A FAN A FA FA a Fa Ae D a 4036 501 Signal Name Description User interface STS User interface communication signal user interface status User interface STS User interface communication signal user interface status SPARE 1 User interface communication signal spare 1 SPARE 1 User interface communication signal spare 1
11. IL24V B HAIHAN CL B Signal name Description STAMP Controls on off of the stamp solenoid and also detects the installation of the stamp Control logic 24V OffA Detection logic effective when the control logic is off OV the stamp is not installed A 24V The stamp is installed IL24V Supplies 24V through the DADF top cover open switch 24V through the interlock switch PICKUP CL Controls the drive power transmission of the motor 24V disable to transmit OV enable to transmit HANSO CL Controls the drive power transmission of the large roll drive motor 24V disable to transmit OVzenable to transmit HAIHAN CL Controls the drive power transmission of the large roll drive motor 24V Disable to transmit OV enable to transmit Connector Locations 5 13 4036 501 DADF Controller Card Assembly lt Reverse Sensor 1 J33 P35 J35 REGI2 A LBL GND LBL REGI2 LBL WB aon DADF EXIT REVERSE E DADFPRE REGI2 SNR 2 E 3 DADFPRE REGI snR 2 3 DADF REGI SNRPWB 2 3 DADF ENCODER SNRL__ 2 5 14 Service Manual LBL i gt LBL HAIHAN LBL HAIHAN LBL HAIHAN K LBL LBL Je 422 J14 P14 REGI2 A LBL GND LBL RE
12. more information Remove the DADF main drive motor assembly See DADF Main Drive Motor Assembly Removal on page 4 28 for more information Remove the two 2 screws in the DADF left hinge Remove the DADF left hinge S 4 re 4 4 22 Service Manual 4036 501 7 Place the DADF assembly upside down 8 Remove four 4 screws in the DADF right hinge 9 Remove the DADF right hinge g m ps C G aT 1 DADF Repair Procedures 4 23 4036 501 DADF Controller Card Assembly Removal 1 1 1 4 24 Service Manual 1 Disconnect Disconnect Disconnect Remove the four 4 screws from the DADF controller card To remove the controller card from the bracket remove the two 2 screws on each Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF rear cover See DADF Rear Cover Removal on page 4 19 for more information Unlatch the cables from harnesses Disconnect P J2 on the DADF control card Disconnect Disconnect 2 3 4 5 6 7 8 9 0 1 2 P J3 P J4 Disconnect P J6 P J7 P J8 P J9 puc side of the connector Remove the DADF controller card assembly 4036 501 9 P J3 P P J4 DADF Repair Procedure
13. 24VRTN 2 5 gt 5 Signal name Description LAMP ON Controls on off of the lamp Connector Locations 5 19 4036 501 Scanner System Card IPS lt Size Detect SENSOR AY APS 600 MN SCANNER SYSTEM CARD P J744 DOC SIZE 1 DOC SIZE 2 YEL amp wo P J747 747 3 PLTANT EL Sre PLATEN SVATN VIO INTLK SW 1 2 P J745 5V GRY REGHSNR Fu REGI SNR 2 P J746 S 45V GRY EH PLTHAGL VEL ANGLE SR 2 Da gt Signal Name Description DOC SIZE1 Detects the long edge of the paper on the flatbed center platen glass plate DOC SIZE 2 Detects the long edge of the paper on the flatbed center platen glass plate PLT INT Detects on off of the platen REGI SNR Detects the home positions of the carriage assembly F and R PLT AGL Detects open close of the DADF 5 20 Service Manual 4036 501 Scanner System Card IPS Scan Drive lt IIT Motor SCANNER SYSTEM CARD ene ESP AN SEN je le 24V ORN la PG VIO 10 PG VIO 5 P J749 5 De FOV 24 i le SMOTSCLK BLU 7 GND VIO P 3 SMOTSPWDN BLU E
14. LD SMOT PWUP BLU 5 SMOT CW BLU 10 gt 3 6 51 SMOTS ON BLU gt SMOT RST BLU 12 gt lt 1 Signal Description MBN Motor drive signal MB Motor drive signal B MAN Motor drive signal MA Motor drive signal A SMOT CLK Pulse signal to drive the scan motor SMOT PWD Current value selecting signal for the scan motor N power up SMOT PWU Current value selecting signal for the scan motor P power down SMOT CW Controls the drive direction of the scan motor High reverse Low forward SMOT ON Switches the scan motor on and off 5V Stop OV Drive SMOTS RST Resets the energizing sequence Connector Locations 5 21 4036 501 Scanner System Card IPS lt gt Control Panel LCD 5 22 Service Manual SCANNER SYSTEM CARD P J25 T Y P J731 A9 A1 5V GRY AB 214 GND VIO in A7 gt lt A3 de Es A5 teg 5 SPARE2 YEL M DT SPARE2 BLU A3 i YEL a UISTS 79 ag BLU A1 gt 4 LISE 9 le UICMD B UICMD BLU 38 UIRESET BE 87 014 IRE T e E GND VIO B5 gt un 5 B4 B6 gt OND B7 5V GRY B2 gt B8 5V GRY B1 gt i B9 4036 501 Signal Description SPARE 1 User interfa
15. When replacing the user interface panel ensure the DIP switches on the bottom of the user interface panel are set Position 1 and 2 should be On while the other positions are set to Off DADF Repair Procedures 4 49 4036 501 Flatbed Scanner Top Cover Assembly Removal 1 apo M Remove the DADF assembly See DADF Assembly Removal on page 4 9 for more information Remove the user interface panel See User Interface Panel Removal page 4 49 for more information Remove the six 6 screws Release the latches on the sides Remove the cover assembly by shifting it to the front while raising the rear Note Disengage the notch on the front side Warning Take care not to damage the flatbed open sensor assembly 4 50 Service Manual 4036 501 Cover DADF Repair Procedures 4 51 4036 501 Flatbed Center Platen Glass Plate Removal 1 Remove the two 2 screws 2 Remove the right side plate 3 Remove the flatbed center platen glass plate Flatbed Center Platen Glass Plate Right Side Plate 4 52 Service Manual 4036 501 When replacing the flatbed center platen glass plate Push the flatbed center platen glass plate in the arrow A direction Push the right plate in the arrow B direction DADF Repair Procedures 4 53 4036 501 Left DADF Platen Glass Plate Removal Oo c A N Remove the DADF assembly See DADF Assembly Removal on pa
16. 5 4036 501 Assembly 3 DADF Control Board and DADF Registration Roll Drive Motor Assembly 7 6 Service Manual 4036 501 Assembly 3 Ref Units Description 1 12G6864 1 Motor Assembly DADF Registration Roll Drive 2 12G6865 1 Motor Assembly DADF Main Drive 3 12G9058 1 Gear DADF 2 4 12G6863 1 Gear DADF 2 5 12G6862 1 Gear DADF 1 6 12G6861 1 Cable Scanner to DADF 7 12G6860 1 Card Assembly DADF Controller Parts Catalog 7 7 4036 501 Assembly 4 DADF Separator Pad Asm and Paper Stop 7 8 Service Manual 4036 501 Assembly 4 Ref en Units Description 1 1206866 1 Pad Assembly DADF Separator 2 12G6867 1 Pad DADF Individual Separator 3 12G6868 1 Linkage DADF 1 4 12G6869 1 Linkage DADF 2 5 12G6870 1 Cover DADF Linkage 6 12G6872 1 Spring Paper Stop 7 12G6871 1 Stop Paper Parts Catalog 7 9 4036 501 Assembly 5 DADF Pick Roller 7 10 Service Manual 4036 501 Assembly 5 Ref Units Description number 1 12G6878 1 Kit Assembly DADF Pick Roller with Separator Pad 2 12G6877 1 Flag Paper Present Sensor 3 12G6876 1 Sensor DADF Paper Present 4 12G6875 1 Card Assembly Paper Present Indicator 5 12G6874 1 Sensor Pre Registration1 6 1206873 1 Shaft Assembly Roller Engagement Parts Catalog 7 11 4036 501 Assembly 6 DADF Document Registration
17. Card Assembly gt Document In Sensor PWBA Size DADF LED PWD P J12 P J4 PWBA EMPTY A ORN D lt 1 D aen om 3 3 DADF DOCUMENT DADF LED PWD E 2 5V ORN 6 E HABA1 S ORN a S 2 5 ORN 2 PWBA size i HABA3 S ORN gt HABA4 ORN P J29 DADF CONTROL P J13 P J13 5V ORN HABA1 ORN HABA2 S ORN ORN ND P MG OO P Signal name Description EMPTY Detects paper setting 5V not ready OV ready EMPTY Supplies the power from 5V terminal through the current limiter to the LED on the DADF paper present sensor photo transistor type Normally on HABA4 Detects the paper size 5V proper paper is not loaded OV proper paper loaded Detects the paper size 5V proper paper is not loaded 0 paper is loaded 2 S Detects the paper size 5V proper paper is not loaded OV proper paper is loaded HABA1 S Detects the paper size 5V proper paper is not loaded 0 proper paper is loaded LED1 Supplies the power through the current limiter to light the LED of the DADF LED PWD Whenever the LED lights this turns on 5 10 Service Manual 4036 501 DADF Controller Card Assembly gt DADF Jam Cover Open Switch DADF Control P J32 WAGEIERG ORN 4
18. DADF individual separator pad See Separator Pad Removal page 4 31 for more information Remove the linkage cover See Linkage Cover Removal on page 4 33 for more information Unhook the paper stop spring at both lower ends Remove the spring Fold the DADF input tray assembly up Remove the E ring from the rear shaft of the paper stopper 4036 501 9 Slide the paper stop toward the rear until the front shaft of the stop is released from the bearing 10 Pull the paper stop out diagonally DADF Repair Procedures 4 35 4036 501 DADF Roller Engagement Shaft Assembly Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information 2 Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information 3 Unhook the tension spring from the roller engagement shaft assembly Remove the KL clip from the front side of the shaft assembly to the bearing Remove the KL clip from the rear side of the shaft assembly to the bearing Slide the bearings on both sides of the shaft assembly toward the inside to release Remove the shaft assembly NOOO A 4 36 Service Manual 4036 501 When replacing the shaft assembly ensure it is oriented correctly DADF Repair Procedures 4 37 4036 501 DADF Paper Present Sensor Removal 1 Remove the DADF top cover See DADF Top Cover Remov
19. DC24V am Cover E ew Open Switch BE 2 24 Signal name Description IL24V Supplies 24V through the jam door open switch 24V through the interlock switch Connector Locations 5 11 4036 501 DADF Controller Card Assembly lt DADF Pick Up Sensor PWD DADF PICK UP SNR PWB PWBA TRAY SNR VCC LBL SZT K LBL a DADF CONTROL Signal name Description SZT K LED return of the DADF pick up sensor SZT Monitor the level of paper Sensor output gt Threshold paper present Sensor output lt Threshold paper not present DADF Controller Card Assembly PWBA Tray Sensor P J16 TRAY LBL TRAY A S D TRAY LBL S 8 TRAY 2 2 4 E LBL PGND i DADF CONTROL P J30 P J30 PWBA Signal name Description LED return of the PWBA tray sensor TRAY Monitor the level of paper Sensor output gt Threshold paper present Sensor output lt Threshold Paper not present 5 12 Service Manual 4036 501 STAMP SOLENOID DADF Controller Card Assembly lt gt Stamp Solenoid DADF CONTROL IL 24V LBL DADF PICK UP CL DADF LAGE ROLL CL DADF EXIT REVERSE CL P1 19 c STAMP BL B B 24V PICKUP CL IL 24V HANSO CL B B o
20. Exit Reverse Roll Large Roll Exit Reverse Sensor General Information 1 13 4036 501 Step 2 Scan of side 2 1 14 Service Manual The paper is re fed to the large roll by the counterclockwise rotation of the exit reverse roll After the paper passes the gate through the upper path and at the timing when the top of the paper actuates the paper present sensor flag of the pre registration sensor 2 the movement is interrupted for the specified time to synchronize the paper feed timing and then restarted The paper is moved toward the DADF platen glass The paper it is interrupted to synchronize the feed timing with the scanning timing of the scanner by the command signal sent from the DADF registration sensor card Paper is conveyed on to the platen glass by the rotation of the large roll and side 2 of the paper is scanned at the platen glass After scanning paper is moved toward the exit reverse roll passing the gate through its lower path Paper movement is interrupted for specified time when the end of the paper passes on the exit reverse sensor 4036 501 DADF Registration Sensor Pre Registration Sensor 2 Pick Roller Assembly Paper Side 2 Exit Reverse Roll Platen Glass Large Roll Exit Reverse Sensor General Information 1 15 4036 501 Step 3 High speed reverse rotation The paper is re fed to the large roll by the counterclockwise rotation of the exit reverse roll Af
21. Full Rate and Half Rate Carriage 7 22 Assembly 12 Scanner Top Cover 7 24 Assembly 13 Multifunction Device Controller Cage Electronics 7 26 1234 4036 501 Notices and Safety Information Safety Information This product is designed tested and approved to meet strict global safety standards with the use of specific Lexmark components The safety features of some parts may not always be obvious Lexmark is not responsible for the use of other replacement parts The maintenance information for this product has been prepared for use by professional service person and is not intended to be used by others There may be an increased risk of electric shock and personal injury during disassembly and servicing of this product Professional service personnel should understand this and take necessary precautions Consignes de S curit Ce produit a t con u test et approuv pour respecter les normes strictes de s curit globale lors de l utilisation de composants Lexmark sp cifiques Les caract ristiques de s curit de certains l ments ne sont pas toujours videntes Lexmark ne peut tre tenu responsable de l utilisation d autres pi ces de rechange Les consignes d entretien et de r paration de ce produit s adressent uniquement un personnel de maintenance qualifi Le d montage et l entretien de ce produit pouvant pr senter certains risqu
22. Top Cover Removal 4 18 DADF Rear Cover Removal 4 19 1234 DADF Jam Door Open Switch Removal 4 20 Mylar Paper Guide Strip Removal 4 21 DADF Left and Right Hinge Removals 4 22 DADF Controller Card Assembly Removal 4 24 DADF Registration Roll Drive Motor Assembly Removal 4 26 DADF Main Drive Motor Assembly Removal 4 28 DADF Separator Pad Assembly Removal 4 30 DADF Separator Pad Removal 4 31 DADF 1 and 2 Linkage Removals 4 32 Linkage Cover Removal 2202620082424 e eau she Meek d eww ees es 4 33 Paper Stop Spring and Paper Stop Removal 4 34 DADF Roller Engagement Shaft Assembly Removal 4 36 DADF Paper Present Sensor Removal 4 38 DADF Paper Present Indicator Card Assembly Removal 4 39 Paper Present Sensor Flag Removal 4 40 DADF Pick Roller with Separator Pad Kit Assembly Removal 4 41 Registration Sensor Removal basins eau bam Rus 4 42 DADF Gear 3 Bearing Removal 4 43 Tension Roller Spring and Tension Roller Removal
23. are used to transmit and control drive to the various components throughout the scanner The purpose of the drive is to provide energy for movement of the full and half rate carriages while maintaining the focus distance to the CCD card lens Timing Pulley Scanner Motor Assembly Lo Scan Cable Assembly Rear Drive Shaft Assembly Half Rate Carriage Full Rate Carriage Pulley Idler Scan Cable Assembly Front 1 28 Service Manual 4036 501 Mechanical Drive Components Scanner Motor The 24VDC motor provides the drive power to the timing pulley Timing Pulley A pulley which dampens rotational pulses from the scanner motor while providing rotational energy to the drive shaft assembly Scanner Cable Assemblies Front And Rear Cables which move the full rate carriage by rotation of the drive shaft assembly The cables also move the half rate carriage half the displacement of the full rate carriage Half Rate Carriage component which transfers the optical image from the full rate carriage to the CCD card lens using two mirrors Full Rate Carriage component used for scanning the image of the paper on the platen glass by turning on the exposure lamp and scanning the image through the mirror combination General Information 1 29 4036 501 Scanning Methods 1 Platen Mode Scans the document placed on the platen glass by movement of the full rate carriage The half rate carriage moves at half the rate of the fu
24. bracket Remove the switch OO P N P J32 Jam Door Open Switch K i go Front 4 20 Service Manual 4036 501 Paper Guide Strip Removal Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Remove the DADF rear cover See DADF Rear Cover Removal on page 4 19 for more information Remove the eight 8 screws in the top half of the DADF assembly Release the cables from the two 2 harnesses Disconnect all the cables from the DADF controller card Remove the top half of the DADF assembly from the DADF base Fold the input tray assembly up Tilt the top half of the DADF assembly up on Remove the screw in the paper stop Remove the paper bracket With the spring attached rotate the paper stop and set aside Remove the mylar paper guide strip with a screwdriver DADF Repair Procedures 4 21 4036 501 DADF Left and Right Hinge Removals 1 oc A Remove the DADF top cover DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Remove the DADF rear cover See DADF Rear Cover Removal on page 4 19 for
25. ein zus tzliches Risiko eines elektrischen Schlags und k rperlicher Verletzung Das zust ndige Fachpersonal sollte entsprechende VorsichtsmaBnahmen treffen Pautas de Seguridad Este producto se ha disefiado verificado y aprobado para cumplir los m s estrictos est ndares de seguridad global usando los componentes espec ficos de Lexmark Puede que las caracter sticas de seguridad de algunas piezas no sean siempre evidentes Lexmark no se hace responsable del uso de otras piezas de recambio La informaci n sobre el mantenimiento de este producto est dirigida exclusivamente al personal cualificado de mantenimiento Existe mayor riesgo de descarga el ctrica y de dafios personales durante el desmontaje y la reparaci n de la m quina El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias Informa es de Seguran a viii Service Manual Este produto foi concebido testado e aprovado para satisfazer os padr es globais de seguran a na utiliza o de componentes espec ficos da Lexmark As fun es de seguran a de alguns dos componentes podem n o ser sempre bvias A Lexmark n o respons vel pela utiliza o de outros componentes de substitui o As informa es de seguran a relativas a este produto destinam se a profissionais destes servi os e n o devem ser utilizadas por outras pessoas Risco de choques el ctricos e ferimentos graves durante a desmontagem e manuten o deste
26. motion Mount the DADF platen glass Mount the cover assembly Mount the flatbed center platen glass plate Mount the user interface Mount the DADF assembly 4036 501 Full Rate Carriage Lamp Cable Removal 1 Remove the flatbed center platen glass plate and cover card See Flatbed Center Platen Glass Plate Removal on page 4 52 for more information 2 Remove the two 2 screws that secure the full rate carriage Full Rate Carriage Carriage Cable AN 3 Reverse the full rate carriage 4 Remove the screw and then the guide DADF Repair Procedures 4 71 4036 501 9 Guide Y Holder OD My i Y P742 Full Rate Carriage P733 Front 5 Remove the full rate carriage lamp cable 6 Disconnect the P742 and P733 7T Remove the full rate carriage lamp cable 4 72 Service Manual 4036 501 5 Connector Locations Use the table and maps in this section to locate specific P J connectors within the scanner To find the location of P J 1 Locate the P J connector number in the first column of the table 2 Locate the corresponding map and location number such as M1 24 in the second column 3 Goto the map M1 number and locate item number 24 Connector Locations 5 1 4036 501 Location Maps Unpacking Other end connected to gt gt gt 0 JEJEJE
27. such as R right assumes you are facing the scanner user interface panel Arrows in an illustration show direction of movement when removing a component Slashes in a part name indicate that numerous components share the same heading and function For example gears in feed out refers to gear in gear feed and gear out e The notation P Jx indicates a plug and jack connection with the number being x KL clip E E ring e S screw 4 2 Service Manual 4036 501 Adjustments DADF Assembly Height Adjustment Adjusts the height of the counterbalance to ensure correct paper feeds To ensure the adjustment is correct make sure the two projections of the lower frame touch the DADF platen glass slightly when the DADF assembly is shut under its own weight Make sure there is no space between the DADF platen cushion and the platen glass when the DADF assembly is shut under its own weight Loosen the nuts on both sides of the counterbalance Adjust the height and the slope of the DADF assembly by turning the set screws Turn the set screw in the direction of A The front side of the DADF is up and the rear side is down Turn the set screw in the direction of The front side of the DADF is down and the rear side is up Note After adjusting tighten the nuts gt ch DADF Repair Procedures 4 3 4036 501 DADF Assembly Paper Skew Adjust
28. 1 B 42 6 43 al lt 44 GND ES GND ER 5 24 Service Manual 4036 501 Signal Description DO CPU data bus 0 01 CPU data bus 1 D2 CPU data bus 2 D3 CPU data bus 3 D4 CPU data bus 4 D5 CPU data bus 5 D6 CPU data bus 6 D7 CPU data bus 7 CPU address bus 0 MROMCS ROM chip selection CRKITCS Creation kit chip selection FLASHATC Flash ROM attachment signal RD Read signal from the CPU WR Write signal from the CPU CRKTINT Interruption signal to the creation kit 1 CPU address bus 1 A2 CPU address bus 2 A3 CPU address bus 3 A4 CPU address bus 4 A5 CPU address bus 5 A6 CPU address bus 6 A7 CPU address bus 7 Connector Locations 5 25 4036 501 Scanner System Card IPS lt Flash ROM 2 2 FLASH ROM 2 2 5 26 Service Manual P J737 A8 AB 47 48 A10 49 A11 50 A12 51 A13 52 A14 53 15 54 16 55 17 i 57 CRKTSTS END gt 58 GND 60 BYTE 61 FROMBUSY 62 RST P 63 CRKTSTS P 64 CRKTCMD gt lt 65 CRKTCMD END gt lt 66 67 GND 68 5V 69 5V 36 5V 71 5V 72 SCANNER SYSTEM CARD 4036 501 Signal Descrip
29. 2V 23 la GND 22 it SAR gt VOUTODD_M VOUTEVEN_M GND VOUTODD_S VOUTEVEN_S GND 5V 5V GND CCD RS GND CCD CLK2 GND CCD CLK1 GND CCD CLP GND GND CCD SH rz 5V 5V n y 3 y AIA ON OOK WD I vv AA YIVIVIVIVIVIVIVIVIVIVIVIMIVIVY A A A A do The following table shows the signal names for this board Signal name Description CCD SH Shift pulse signal to operate the CCD CCD CLP Clamping signal to operate the CCD CCD CLK1 Clock 1 signal to operate the CCD CCD CLK2 Clock 2 signal to operate the CCD CCD RS Reset signal to operate the CCD VOUTEVEN_S EVEN signal from the CCD sub output VOUTODD_S ODD signal from the CCD sub output VOUTEVEN_M EVEN signal from the CCD main output VOUTODD_M ODD signal from the CCD main output 5 18 Service Manual 4036 501 LAMP Scanner System Card LX lt gt Lamp Invertor Power Supply FLPS SCANNER P J743 P J742 24V P J733 SYSTEM CARD 1 1 1 24V lt 5 LAMP ON gt 3 24VRTN 4 gt 4
30. 3 Bearing 4 43 DADF Input Tray Assembly 4 15 DADF Jam Access Door Assembly 4 16 DADF Jam Door Open Switch 4 20 DADF Left and DADF Right Hinges 4 22 DADF Paper Present Indicator Card Assembly 4 39 DADF Paper Present Sensor 4 38 DADF Pick Roller with Separator Pad Kit Assembly 4 41 DADF Rear Cover 4 19 DADF Registration Roll Drive Motor Assembly 4 26 DADF Roller Engagement Shaft Assembly 4 36 DADF Separator Pad 4 31 DADF Separator Pad Assembly 4 30 DADF Top Cover 4 18 DADF Upper Paper Guide 4 45 Duplex Auto Document Feed DADF Assembly 4 9 Linkage Cover 4 33 Mylar Paper Guide Strip 4 21 Paper Present Sensor Flag 4 40 Paper Stop Spring and Paper Stop 4 34 Registration Sensor 4 42 Scanner Automatic Paper Size Sensor 4 64 Cable Assembly Scan Rear 4 66 Charge Couple Device Card Assembly 4 62 Flatbed Center Platen Glass Plate 4 52 Flatbed Open Sensor 4 57 Flatbed Scanner Top Cover Assembly 4 50 Full Rate Carriage Lamp Assembly 4 65 Full Rate Carriage Lamp Cable 4 71 Left DADF Platen Glass Plate 4 54 Plate Switch Assembly 4 59 Registration Sensor Assembly 4 58 Scanner Main Drive Motor Assembly 4 55 Scanner Motor Card Assembly 4 56 Scanner System Card Assembly 4 60 User Interface Panel 4 49 Tension Roller Spring and Tension Roller 4 44 5 Safety Information iv vii Scanner Control 1 24 Scanner Control Components 1 26 Scanner Errors 2 2 Scanner Power 1 23 Scanner Principles of Operation 1 23 Mechanical Drive 1 28 Mechanical Driv
31. 500 Scanner 4036 501 and contains maintenance procedures for service personnel only It is divided into the following chapters 1 NO O1 N General Information contains a general description of the scanner and the maintenance approach used to repair it Special tools and test equipment are listed in this chapter as well as general environmental and safety instructions Diagnostic Information contains error indicator tables and troubleshooting tables used to isolate failing field replaceable units FRUs Diagnostic Aids this scanner does not contain diagnostic aids Repair Information provides instructions for making scanner adjustments and removing and installing FRUs Connector Locations uses illustrations to identify the connector locations and test points on the scanner Preventive Maintenance contains recommendations to prevent problems Parts Catalog contains illustrations and part numbers for individual FRUs 4036 501 1 General Information The Lexmark X7500 4036 501 scanner option is multifunction solution for the Lexmark W820 printer that adds copy fax and monochrome network scanning capabilities for increased corporate productivity With the X7500 scanner option you can Up to 45 ppm scan once print many duplex in out job building book copy reduce enlarge brightness adjustment Fax 33 6 KBS JBIG speed dial memory send retry fax server support memor
32. 7 12G6912 7 27 12G6913 7 27 12G6918 7 27 12G9058 7 7 12G9061 7 27 12G9062 7 27 12G9063 7 27 12G9080 7 25 56P9910 7 27
33. Controller Card Standoff N S 12G9062 1 Parts Pack Screw N S 12G4368 1 Parts Pack Clamp Kit Lexmark W820 printer 4025 N S 12G4369 1 Parts Pack E Clip Kit Lexmark W820 printer 4025 N S 12G4375 1 Parts Pack Screw Lexmark W820 printer 4025 Parts Catalog 7 27 4036 501 7 28 Service Manual 4036 501 Index A Acronyms 1 2 Adjustments 4 3 DADF Assembly Height 4 3 DADF Assembly Paper Skew 4 4 Position of Full Rate Half Rate Carriages 4 6 C Configuring the MFD Controller Card 4 8 Connector Locations 5 1 DADF Master Wiring Diagram 5 9 External LVPS 5 36 Location Maps 5 2 Scanner Master Wiring Diagram 5 17 Maintaining Your MFP 6 1 Cleaning The Scanner Bed 6 1 Cleaning The Scanner Pick Pads 6 3 Cleaning The Scanner Rollers 6 1 Cleaning The Touch Screen 6 1 Maintenance Approach 1 1 Mechanical Drive Components 1 29 MFD Controller Cage Errors 2 4 MFD Controller Card Configuration 4 8 Operational Pattern 1 1 12 Operational Pattern 2 1 18 P Principles of Operation 1 4 DADF Control 1 4 DADF Control Components 1 6 DADF Mechanical Drive Components 1 9 DADF Paper Path 1 10 DADF Paper Path Components 1 22 DADF Power 1 4 Mechanical Drive 1 8 Operational Pattern 1 1 12 Operational Pattern 2 1 18 R Removals DADF 1 and 2 Linkage 4 32 DADF 4 Gear 4 46 DADF Controller Card Assembly 4 24 DADF Cushion 4 12 DADF Exit Reverse Solenoid 4 14 DADF Front Cover Handle and Magnet 4 11 DADF Gear
34. DADF EXIT REVERSE SOL GO RIKAN SOL BLU DADF REGI ROLL DRIVE MOT DADF LARGE ROLL DRIVE MOT 1 BLU 5 N C 3 KMOT R BLU 4 si c C y nar OMN a DADF CONTOL P J26 7 P J28 The following table shows the signal names for this board Signal name Description RIKAN SOL Controls on off of the separation solenoid High Inactive Low Active KMOT F Controls on off of the clockwise rotation Controls on off of the counterclockwise rotation PMOT A Pulse that controls motor rotation PMOT A Pulse that controls motor rotation PMOT B Pulse that controls motor rotation PMOT B Pulse that controls motor rotation 5 16 Service Manual 4036 501 Scanner Master Wiring Diagram P J PJ CCD i CCD SNR 732 751 PWBA MED H XENON 730 LAMP P J P J P J 733 742 FLPS 743 SENSOR AY 744 APS 600 MN P J PLATEN 747 INTLK SW P J 734 SCANNER d REGI SNR SYSTEM CARD P sj ANGLE SNR PA SCANNER p j MOTOR CARD 749 IT MOT CONTROL 25 DE PANEL LCD P J DADF qud P J 737 FLASH ROM Connector Locations 5 17 4036 501 Scanner System Card IPS LX lt gt CCD PWBA CCD SNR SCANNER P J751 P J732 SYSTEM CARD 12V 24 gt 1
35. GI2 LBL VCC LBL vec LBL LBL ESO REGI1 LBL REJGI1 KLBL K LBL 3 3 N C J24 J31 P31 READ K LBL 138 READ K LBL READ LBL r N READ LBL VCC LBL e 3 LBL SGND LBL KMOT CK LBL KMOT CK A LBL DADF CONTROL PWBA 4036 501 The following table shows the signal names for this board Signal name Description HAIHAN K LED return of the DADF exit reverse sensor HAIHAN Detects whether paper exists or not Sensor output lt Threshold paper exists Sensor output gt Threshold no paper exists REGI2 Detects top of paper 5V Top of paper is detected OV Top of paper is not detected REGI2 A Supplies the power from 5V terminal through the current limiter for the LED of the DADF pre registration 2 sensor photo transistor type Normally on REGI1K LED return of the DADF pre registration 1 sensor Detects which paper exists or Sensor output lt Threshold paper exists Sensor output gt Threshold no paper exist READ Detects which paper exists or not Sensor output lt Threshold paper exists Sensor output gt Threshold no paper exist READ K LED return of the DADF registration sensor KMOT CK The hole of the rotating disk goes to be low level Connector Locations 5 15 4036 501 DADF Controller Card Assembly lt gt Exit Reverse Solenoid j 24V ORN
36. Multifunction Product MFP Warning Do not spray the touch screen with water or glass cleaner Liquid can damage the MFP CleaNing the touch screen 1 Dampen a clean lint free cotton cloth with water 2 Wipe the touch screen Cleaning the scanner bed 1 Dampen a clean lint free cotton cloth with water 2 Open the cover Wipe the scanner bed glass Cleaning the scanner rollers Clean the rollers if documents do not feed smoothly or easily or if several documents feed at one time The rollers may be contaminated with ink toner particles or paper coating We recommend cleaning rollers every 30 000 scans 1 Turn off and unplug the control unit 2 Dampen a clean lint free cotton cloth with water Preventive Maintenance 6 1 4036 501 3 Open the lid 4 Rotate the set of pick rollers forward with your finger and wipe each one with the cloth until the entire roller is cleaned Pick Rollers I VLLL LN I V je d D of IE Lift the paper guide Rotate the three sets of feeding rollers forward with your finger and wipe each one with the cloth until the entire roller is cleaned Lower the paper guide and the ADF cover Plug in the control unit
37. OM broken Replace the main scanner board Scanner EEPROM R W error Replace the main scanner board Scanner to MFD cage framing overrun parity error Check the connection of the scanner to MFD controller cage cable Replace if defective Scanner to MFD cage error Check the connection of the scanner to MFD controller cage cable Replace if defective Scanner to MFD cage No communication Check the connection of the scanner to MFD controller cage cable Replace if defective Scanner to MFD cage Communication not established Check the connection of the scanner to MFD controller cage cable Replace if defective Carriage registration sensor not cleared Inspect replace the registration sensor in the scanner Carriage registration sensor failed Inspect replace the registration sensor in the scanner Motor pulse gap between scan and return Inspect replace the scanner motor fail Replace the flatbed lamp problem persists replace the lamp power inverter fail 1 Replace the flatbed lamp problem persists replace the lamp power inverter fail 2 Replace the flatbed lamp problem persists replace the lamp power inverter Shading calibration write failed Replace the flatbed lamp If problem persists replace the lamp power inverter 2 2 Service Manual 4036 501 Error message displayed to user
38. Port Replace the O O controller board O600 28 2 Problem with the CPU Replace the MFD controller board COOC 0O00 2 4 Service Manual 4036 501 Error message m 2n E ind LED pattern displayed to user Corrective action p interface 31 3 No Hard Drive Found Check connections to Note Error code the hard disk drive and OO message displayed associated cables for 0009 the user interface continuity Check power Only beep code and going to the hard disk LED patterns are drive Replace the generated for this error Power distribution card if no power is present power is present replace the hard disk drive 32 3 Missing VM Linux The Linux kernal is not Note Error code found Replace or message not displayed reformat the hard disk on the user interface drive Only beep code and LED patterns are generated for this error 34 3 Hard drive failure There was an error writing to the hard drive or the Linux code is corrupt Replace or reformat the hard disk drive 41 4 Scanner interface not The scanner image found processing board was not found Check connections to the interface board If connections are good replace the image processor board 42 4 Scanner interface failed The image processor self diagnostics board is defective OG OO Replace Gm deck processor board 51 5 No memory The memory DIMM was Note Error code message no
39. System 8 12G6814 1 Cable Scanner to Controller 9 12G6815 1 Plate Left DADF Platen Glass Parts Catalog 7 17 4036 501 Assembly 9 Scanner Lens Assembly and CCD 2 e SM 37 YOM 7 l ABN VI A7 AN J 7 18 Service Manual 4036 501 Assembly 9 Ref Units Description number 1 12G6819 1 Lens CCD Card 2 12G6816 1 Card Assembly Charged Couple Device 3 12G6817 1 Cable CCD 4 12G6818 1 Sensor Automatic Paper Size APS Parts Catalog 7 19 4036 501 Assembly 10 Scanner Carriage Motor and Cable 7 20 Service Manual 4036 501 Assembly 10 Ref AN Units Description 1 12G6829 1 Spring Motor 2 12G6828 1 Motor Assembly Main Drive 3 12G6824 1 Damper Dynamic Motor 4 12G6827 1 Belt Main Drive 5 12G6826 2 Bearing Pulley Shaft 6 12G6830 4 Foot Scanner Base Parts Catalog 7 21 4036 501 Assembly 11 Scanner Full Rate and Half Rate Carriage 7 22 Service Manual 4036 501 Assembly 11 Ref T Units Description 1 12G6834 1 Lamp Assembly Full Rate Carriage 2 12G6835 1 Cable Full Rate Carriage Lamp 3 12G6833 1 Power Invertor Lamp 4 12G6886 3 Mirror Parts Catalog 7 23 4036 501 Assembly 12 Scanner Top Cover 7 24 Service Manual 4036 501 Asse
40. System Card IPS lt gt 3 4 SCANNER SYSTEM CARD 5 34 Service Manual 5V 5V Ka 5V Ka 5V 5V 5V 5V 5V 5V 5V K 5V K 5V K 5 raj 5V lt 5V K 5V K 24V K 24V K 24V 24V K K 24V K 24V K 24V K 24V 24V 24V Ka 4036 501 Scanner System Card IPS lt gt 4 4 SCANNER SYSTEM CARD P J730 91 92 93 94 95 D H 96 97 98 99 100 D 101 II UK 104 105 106 D4 107 He 109 110 111 1055 112 113 eg 114 D4 115 D 116 DA 117 D4 118 D 119 4 120 Connector Locations 5 35 4036 501 External Low Voltage Power Supply 7 12 1 6 Pin Wire color Voltage 1 Black GND 2 Black GND 3 Black GND 4 Black GND 5 Black GND 6 Black GND 7 White 24V 8 Red 5V 9 Yellow 12V de 10 Red 5V de 11 Red 5V de 12 Red 5V de 5 36 Service Manual 4036 501 6 Preventive Maintenance Maintaining Your
41. WB P J6 DADF controller card assembly P J25 DADF encoder sensor P J6 DADF controller card assembly P J26 DADAF exit reverse solenoid P J7 DADF controller card assembly P J27 DADF registration roll drive motor P J7 DADF controller card assembly P J28 Main drive motor assembly P J7 DADF controller card assembly P J29 DADF LED PWD P J4 DADF controller card assembly P J30 P J16 PWBA tray sensor P J9 DADF controller card assembly P J31 P J24 DADF registration sensor PWB P J6 DADF controller card assembly P J32 DADF jam cover open switch P J2 DADF controller card assembly P J33 DADF exit reverse sensor P J6 DADF controller card assembly P J35 P J33 DADF exit reverse sensor P J700 DADF controller card assembly Connector Locations 5 3 4036 501 P J744 5 4 Service Manual 4036 501 P J Connected to Other end connected to P J25 User interface P J731 scanner system board P J731 Scanner system board P J25 user interface P J732 Scanner system card assembly LMK P J751 PWB assembly F Dual P J733 SCANNER system card assembly LMK P J742 power supply lamp P J734 SCANNER system card assembly LMK P J744 sensor paper position P J745 sensor assembly registration P J746 sensor assembly platen P J747 switch assembly platen P J735 Scanner system card assembly LMK P J748 PWB assembly scan P J737 scanner system card assembly LMK PROM assembly scanner system board P J744 Sensor paper positi
42. al on page 4 18 for more information Remove the screw from the DADF paper present sensor card and mylar cover Disconnect the paper present sensor connector P J15 Remove the sensor aan P J15 Front 4 38 Service Manual 4036 501 DADF Paper Present Indicator Card Assembly Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information 2 Disconnect the connector P J29 from the DADF paper present indicator card 3 Remove the screw 4 Remove the indicator card Front DADF Repair Procedures 4 39 4036 501 Paper Present Sensor Flag Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information 2 Remove the DADF paper present indicator card assembly See DADF Paper Present Indicator Card Assembly Removal on page 4 39 for more information 3 Remove the KL clip from the paper present sensor flag 4 Raise the input tray assembly to 90 angle 5 Slide the sensor toward the rear to remove Front 4 40 Service Manual 4036 501 DADF Pick Roller with Separator Pad Kit Assembly Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Note Ensure the roller engagement shaft assembly pins are in the up position Remove two 2 KL clips from the shaft of the pick roller Release the two 2 springs Slide the rear bearing toward the inside
43. ame of wire 5V INTLK Voltage measured with the 24VDC negative probe of the meter on SG Voltage value of signal HEAT ON The voltage goes LOW when the signal is ON In this case the HEAT signal is ON so the normal voltage of 4 2VDC drops to OVDC There is continuity between SG and Continuity between FG and SG depends on circuit specifications GND GROUND SGND SIGNAL GROUND PGND FRAME GROUND RTN RETURN in a signal name indicates the signal is coming from the MCU CPU in a signal name indicates the signal is going to the MCU CPU H Interactive communication signal Analog signal 5 8 Service Manual 4036 501 DADF Master Wiring Diagram STAMP HT E SOLENOID LE OPTIO P J 000 DADF Han PICK UP CL P J 3 DADF DOCUMENT P J IN SNR 12 P J PWBA SIZE CI P J13 P J DADFLEDPWD 59 P J 000 DADF LARGE FI ROLL CL P J 000 DADF EXIT Man REVERSE CL EG P J P J DADF EXIT 35 33 I REVERSE SNR DADF JAM COVER gt gt SG OPEN SWITCH 2 P J DADF PRE 22 REGI SNR P J DADF PICK UP P J 1 SNR PWB 15 P J DADF PRE P J 23 REGI SNR 6 TRAY fe SCH P J Te DADFREGI 3 24 SNR PWB P J DADF ENCODER EI P J 1 P J DADF EXIT 26 REVERSE SOL P J DADF REGI ROLL 7 27 DRIVE MOTOR Unpacking 5 P J DADF LARGE 28 ROLL DRIVE MOTOR Connector Locations 5 9 4036 501 DADF Controller
44. and turn it on ON oo ER UM 2 o lm etre Feed Rollers in PL Ln l FRU Wy E I Im amp Paper Guide z E TT TH gt L gt ELI ULL LLI Ur L 6 2 Service Manual 4036 501 Cleaning the scanner pick pads Lift the input tray Remove the two screws Lower the roller plate and pull it straight out Dampen a clean lint free cotton cloth with water Wipe the two pick pads es O Pick Pads Preventive Maintenance 6 3 4036 501 Align the tabs on either side of the roller plate with the grooves inside the paper exit area Insert the right tab into the right groove and then slip the left tab into the left groove Tilt the roller plate up and slanted slightly down on the right side Slide the plate back until it snaps into place 10 Install the two screws to secure the plate ON For instructions on maintaining the printer refer to the printer publications CD 6 4 Service Manual 4036 501 7 Parts Catalog How to Use This Parts Catalog SIMILAR ASSEMBLIES If two assemblies contain a majority of identical parts they are shown on the same list Parts peculiar to one or the other of the assemblies are l
45. anner Top Cover Assembly Removal on page 4 50 for more information Shift the full rate carriage away from the registration sensor by rotating the timing pulley N 5 Disconnect P J745 6 Remove the screw from the bracket 7 Remove the registration sensor assembly P J745 4 58 Service Manual 4036 501 Plate Switch Assembly Removal 1 Noob N Remove the DADF assembly See DADF Assembly Removal on page 4 9 for more information Remove the user interface panel See User Interface Panel Removal page 4 49 for more information Remove the flatbed scanner top cover assembly See Flatbed Scanner Top Cover Assembly Removal on page 4 50 for more information Unclamp the harness in the plate switch assembly Disconnect the P J747 Remove the screw Remove the plate switch assembly P J747 DADF Repair Procedures 4 59 4036 501 Scanner System Card Assembly Removal 1 Remove the flatbed center platen glass plate See Flatbed Center Platen Glass Plate Removal on page 4 52 for more information Warning The scanner contains number of screws painted red Do not loosen or remove 2 Disconnect the P J730 and P J736 3 Remove the three 3 screws a P J736 P J730 4 60 Service Manual 4036 501 Move the full rate carriage to the left side of the scanner Remove the six 6 screws Remove th
46. bution board The 5VDC and 24VDC voltages are sent through the image processing board and onto the scanner through the 120 pin scanner cable The voltage travels from the scanner cable into the scanner system board where it passes onto the DADF 120 Pin Power Supply Power Image Scanner Scanner Main Motor 5VDC Distribution y processor Cable System Board Board Board gt Voltage 12VDC I Clutches 24VDC 24VDC Duplex gt Motors Controller Cage Auto PP Document gt Clutches Feeder gt Sensors DADF Control The DADF control card provides the logic and information processing that is necessary for the DADF to function Every electrical component within the DADF is connected to the control card Sensors in the DADF send status information to the control card The control card processes that information shares it with the MFD controller cage and compares it to timing tables stored in ROM Acting on the results of the processing the control card sends commands to the various DADF components 1 4 Service Manual 4036 501 Exit Reverse DADF Control PWB Solenoid Top Cover Open Pick Up Clutch Switch Exit Reverse Clutch Pre Regi Sensor 1 Large Roll Clutch Regi Roll VT Pre Regi Sensor 2 Size Sensor Encoder S
47. canner Motor Lamp Power Exposure Lamp Invertor User Interface Card MFD BOX Registration Sensor Flatbed Open Sensor Scanner Motor Card 1 1 Er ee EA Platen Switch 1 1 General Information 1 25 4036 501 Scanner Control Components 1 26 Service Manual Scanner System Card The card controls all scanner functions executes commands sent from the MFD box and sends information back to the MFD box Registration Sensor The sensor detects the paper present sensor flag at the side of the carriage and is used to detect carriage home position Charged Couple Device CCD Card The card transmits video data read by the CCD card lens to the scanner system card PS Lamp The lamp provides the electric power to light the exposure lamp Scanner Motor Card The card controls the rotation of the scanner motor 4036 501 Scanner Motor Card CCD Lens Flatbed Open Sensor Scanner System Card CCD Card lt gt res sq ER gt AD Registration Sensor Platen Switch APS Sensor Exposure Lamp PS Lamp Mirror 2 Half Rate Carriage Mirror 3 Mirror 1 Full Rate Carriage General Information 1 27 4036 501 Mechanical Drive Mechanical drive describes both the rotation of the scanner motor assembly and the action of the gears belts and pulley that
48. ce communication signal spare 1 SPARE 1 User interface communication signal spare 1 SPARE2 User interface communication signal spare 2 SPARE2 User interface communication signal spare 2 User interface STS User interface communication signal user interface status User interface STS User interface communication signal user interface status User interface CMD User interface communication signal user interface command User interface CMD User interface communication signal user interface command User interface RESET User interface communication signal user interface reset User interface RESET User interface communication signal user interface reset Connector Locations 5 23 4036 501 Scanner System Card IPS Flash ROM 1 2 SCANNER POOR SYSTEM CARD FLASH ROM 1 2 m 5V 5 5V 45V 4 GND EP GND DO gt D1 8 D2 Ee Ds 10 D4 11 DS IC 12 p 13 D7 14 GND e GND DE LC 17 N C N C P N C e N C 2 N C P N C x 0 24 GND GND MROMCS i CRKTCS Sab FLASHATC 29 N C RE 7 31 32 N C pa as CRKTINT am GND p GND Se NG 37 1 53 A2 40 4
49. check of pick roller Re install pick roller assembly Motor assembly failure registration roll drive motor assembly main drive motor assembly Visual check or motor rotation Replace the failure motor assembly Gear failure DADF gear 1 2 2B 3 or 4 Visual check of gear rotation Replace the failing gear Main drive motor Main drive assembly Visual check Replace the motor assembly Dirt on carriage None Visual check Clean the carriage guides guides with isopropyl alcohol 2 8 Service Manual 4036 501 Frequent paper jam double feed or skew Cause Relevant unit Check method Maintenance method Paper setting failure Operation error Isthe paper correctly set in the upper paper guide Teach users to properly position the paper Paper failure Operation error Is the specified paper used None Paper debris None Check for paper fragments in paper path Clean paper path of dirt and debris DADF pick roller ADF pick roller Check the pick roller Clean or replace the failure assembly assembly for dirt and pick roller assembly wear See Maintaining Your Multifunction Product on page 6 1 for more information Separator pad Separator pad Check the pad for Clean or replace the assembly failure assembly wear and tear separator pad assembly Improper reg
50. d method Image processor Image processor Visual check Replace the image board failure board processor board Lamp power invertor Lamp power invertor Visual check Replace the lamp failure power invertor Lamp failure Lamp Visual check Replace the lamp CCD board scanner None Visual check Connect the system board connector connection failure CCD board fails CCD board Visual check Replace the CCD board Diagnostic Information 2 11 4036 501 2 12 Service Manual 4036 501 3 Diagnostic Aids The Lexmark X7500 does not have any onboard diagnostic aids available Diagnostic Aids 3 1 4036 501 3 2 Service Manual 4036 501 4 DADF Repair Procedures Preparation There are two sections containing the removal and replacement procedures for the major parts within the duplex automatic document feeder DADF and the scanner Before you begin any removal and replacement procedure 1 Switch off the power to the entire scanner system 2 Disconnect the AC power cord from the electrical outlet 3 Ensure that all external devices are powered off and unplugged from wall outlets 4 Wear an electrostatic discharge wrist strap to protect sensitive parts from damage Warning Never disconnect a cable while the power is on This can easily damage sensitive circuit boards in the DADF scanner and MFD controller cage DADF Repair Procedures 4 1 4036 501 Notations in the Removal Replacement text Locations
51. d by the MFD controller card are displayed to the user interface panel If an error is reported to the user interface go to Scanner Errors on page 2 2 to determine the corrective action necessary to perform the repair MFD errors detected by the MFD controller card are displayed to the user interface panel along with an audible beep code and LED code visible on the MFD controller card If the malfunction is associated with the user interface panel preventing error messages to be displayed the beep and LED codes can further assist the servicer in diagnosing the problem During a full Power On Self Test a beep and LED code are generated if a malfunction is detected Refer to MFD Controller Cage Errors on page 2 4 to read the codes and determine the corrective action necessary to perform the repair If a problem exists with the scanner system unrelated to any of the error codes go to Symptom Tables on page 2 7 to troubleshoot the problem and determine appropriate repair action Diagnostic Information 2 1 4036 501 Scanner Errors Scanner Errors refers to errors detected within the flatbed scanner and duplexing auto document feeder DADF These errors are displayed on the user interface touch screen Error message displayed to user interface Corrective action Main scanner board memory error Replace the main scanner board Scanner RAM R W error Replace the main scanner board Scanner EEPR
52. e Components 1 29 Scanner Control 1 24 Scanner Control Components 1 26 Scanner Power 1 23 Scanning Methods of the Scanner 1 30 Start Diagnostics 2 1 T Tools Required 1 1 W Wiring Diagrams 5 8 Part Numbers 12G4191 7 5 12G6807 7 17 12G6808 7 17 12G6809 7 17 12G6810 7 17 12G6811 7 17 12G6812 7 17 12G6813 7 17 12G6814 7 17 12G6815 7 17 12G6816 7 19 12G6817 7 19 12G6818 7 19 12G6819 7 19 12G6824 7 21 12G6826 7 21 12G6827 7 21 12G6828 7 21 12G6829 7 21 1206830 7 21 1206833 7 23 12G6834 7 23 1206835 7 23 12G6836 7 15 12G6837 7 25 1206838 7 25 12G6839 7 25 12G6840 7 25 12G6841 7 3 12G6842 7 3 12G6843 7 3 12G6844 7 3 12G6845 7 3 12G6846 7 5 12G6847 7 5 12G6848 7 5 12G6849 7 5 12G6850 7 5 12G6851 7 5 12G6852 7 5 12G6853 7 5 12G6854 7 5 12G6856 7 5 12G6857 7 5 12G6858 7 5 12G6859 7 5 12G6860 7 7 12G6861 7 7 12G6862 7 7 12G6863 7 7 l 2 Service Manual 12G6864 7 7 12G6865 7 7 12G6866 7 9 12G6867 7 9 12G6868 7 9 12G6869 7 9 12G6870 7 9 12G6871 7 9 12G6872 7 9 12G6873 7 11 12G6874 7 11 12G6875 7 11 12G6876 7 11 12G6877 7 11 12G6878 7 11 12G6879 7 13 12G6880 7 13 12G6881 7 13 12G6882 7 13 12G6883 7 13 12G6884 7 13 12G6885 7 13 12G6886 7 23 12G6887 7 15 12G6888 7 15 12G6889 7 15 12G6890 7 15 12G6891 7 15 12G6892 7 15 12G6893 7 15 12G6894 7 15 12G6895 7 15 12G6896 7 15 12G6898 7 27 12G6901 7 27 12G6902 7 27 12G6907 7 27 12G6908 7 27 12G6909 7 27 12G6910 7 27 12G6911 7 2
53. e DADF Pick Up Sensor The sensor detects the existence of paper This sensor utilizes timing control of the paper conveyance as well as analyzes and recognizes the length of paper 4036 501 Registration Sensor This sensor detects top of paper The sensor uses the on off control of the large roll clutch to match up the timing of paper scanning with the timing of paper conveyance e Exit Reverse Sensor The sensor detects the paper passing it This sensor also uses a timing control of the paper conveyance PWBA Tray Sensor The tray sensor detects paper length set on the tray as being longer than the specified length General Information 1 7 4036 501 Pick 2 Roller Assembly Gear Regi Roll Drive Motor Mechanical Drive Mechanical drive describes both the rotation of the motor and the action of the gears belts and clutches that are used to transmit and control drive to the various components throughout the DADF The major purpose of the drive is to provide the dynamic energy required for the paper conveyance throughout the DADF The registration roll drive motor provides the rotation power with the center gear of the frame assembly through the belt 6 mm The center gear of the frame assembly delivers the rotation power to the gear 23T 48T through the belt 6 mm With the rotation of the gear 23T 48T the rotation power is distributed to the gears of the registration roll gear and the pick 2 roller assembly respective
54. e KL clip from the roller in the upper front side of the DADF assembly Slide the upper roller toward the front Remove the roller along with the bearing Note Pass through an opening on the rear side of the DADF assembly between the bearing and the gear 4 46 Service Manual 4036 501 8 Remove the KL clip from the roller 9 Slide the lower roller toward the front 10 Remove the roller along with the bearing Note Pass through an opening on the rear side of the DADF assembly between the bearing and the gear 11 Remove the main drive motor assembly 12 Remove the E ring 13 Pull out the gear DADF Repair Procedures 4 47 4036 501 Scanner Repair Procedures This section contains the removal and replacement procedures for major parts within the printer Scanner Warning The scanner contains number of screws painted red Do not loosen or remove 4 48 Service Manual 4036 501 User Interface Panel Removal CAUTION Ensure the scanner power is off before the user interface panel is removed The back light of the touch screen is powered with high voltage and could harm servicer if touched Warning Ensure that all external devices are powered off and unplugged from wall outlets 1 Remove the five 5 screws from the user interface panel 2 Raise the user interface from the front side 3 Disconnect P J25 from the user interface card Bottom Extension Cover P J25 Note
55. e cover Disconnect the P J731 P J732 P J733 P J734 and P J735 P 733 C lt P J732 P J734 P J731 P J735 8 Remove 5 screws 9 10 Remove the scanner system card DADF Repair Procedures 4 61 4036 501 Charge Couple Device Card Assembly Removal 1 Remove the flatbed center platen glass plate See Flatbed Center Platen Glass Plate Removal on page 4 52 for more information Warning The scanner contains number of screws painted red Do not loosen or remove 2 Remove the two 2 screws from the cover 3 Remove the cover Cushion 4 62 Service Manual 4036 501 4 Disconnect the CCD card lens and the charge couple device card 5 Remove the two 2 screws 6 Remove the charge couple device card PWB Assembly F Dual DADF Repair Procedures 4 63 4036 501 Automatic Paper Size Sensor Removal 1 Remove the flatbed center platen glass plate See Flatbed Center Platen Glass Plate Removal on page 4 52 for more information Warning The scanner contains number of screws painted red Do not loosen or remove Mark the position of the screws from the automatic paper size sensor Disconnect P J744 Remove the screw Remove the automatic paper size sensor or gt 4 64 Service Manual 4036 501 Full Rate Carriage Lamp Assembly Removal 1 Remove the flatbed center platen glass plate See Flatbed Cen
56. ee DADF Assembly Removal on page 4 9 for more information Remove the user interface panel See User Interface Panel Removal page 4 49 for more information Remove the flatbed scanner top cover assembly See Flatbed Scanner Top Cover Assembly Removal on page 4 50 for more information Release the harness from the clamp on the scanner motor card Disconnect P J749 and P J748 Remove the screw in the scanner motor card Remove the card assembly by shifting it to the rear BR N P J748 P J749 4 56 Service Manual 4036 501 Flatbed Open Sensor Removal 1 ou P N Remove the DADF assembly See DADF Assembly Removal on page 4 9 for more information Remove the user interface panel See User Interface Panel Removal page 4 49 for more information Remove the flatbed scanner top cover assembly See Flatbed Scanner Top Cover Assembly Removal on page 4 50 for more information Disconnect P J746 Remove the screw Remove the flatbed open sensor by shifting upward P J746 DADF Repair Procedures 4 57 4036 501 Registration Sensor Assembly Removal 1 Remove the DADF assembly See DADF Assembly Removal page 4 9 for more information Remove the user interface panel See User Interface Panel Removal page 4 49 for more information Remove the flatbed scanner top cover assembly See Flatbed Sc
57. ensor Document In Sensor Pick Up Sensor Scanner System Card Regi Sensor Exit Reverse Sensor Tray Sensor General Information 1 5 4036 501 Encoder Sensor Paper Present Sensor Pick Up Sensor PWB Pre Registration Sensor 2 Registration Sensor PWB Exit Reverse Sensor 1 6 Service Manual DADF Control Components Paper Present Indicator DADF Control PWB Ny PWBA Tray Sensor Top Cover Open Switch Size Sensor Pre Registration Sensor 1 Exit Reverse Solenoid DADF Control Card The card controls all DADF functions executes commands sent from the MFD controller cage and sends information back to the MFD controller cage Top Cover Open Switch The switch detects the jam access door assembly in the DADF is either opened or closed Pre registration Sensor 1 This sensor detects top of paper and sends a signal for making the paper standby just before the registration roll Pre registration Sensor 2 This sensor detects top of paper and sends a signal for making the paper standby just before the large roll Size Sensor The sensor detects paper size The passing paper uses three actuators on the size sensor card and turns them on and off respectively The originated signal is transmitted to the MCU card Encoder Sensor The sensor detects the number of registration roll drive motor rotations Paper Present Sensor This sensor detects the paper loaded in th
58. es lectriques le personnel d entretien qualifi devra prendre toutes les pr cautions n cessaires Norme di sicurezza Il prodotto stato progettato testato approvato in conformit a severi standard di sicurezza e per l utilizzo con componenti Lexmark specifici Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione Lexmark non responsabile per l utilizzo di parti di ricambio di altri produttori Le informazioni riguardanti la manutenzione di questo prodotto sono indirizzate soltanto al personale di assistenza autorizzato Durante lo smontaggio e la manutenzione di questo prodotto il rischio di subire scosse elettriche e danni alla persona pi elevato personale di assistenza autorizzato deve quindi adottare le precauzioni necessarie Notices and Safety Information vii 4036 501 Sicherheitshinweise Dieses Produkt und die zugeh rigen Komponenten wurden entworfen und getestet um beim Einsatz die weltweit g ltigen Sicherheitsanforderungen zu erf llen Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich Sofern Teile eingesetzt werden die nicht von Lexmark sind wird von Lexmark keinerlei Verantwortung oder Haftung f r dieses Produkt bernommen Die Wartungsinformationen f r dieses Produkt sind ausschlieBlich f r die Verwendung durch einen Wartungsfachmann bestimmt W hrend des Auseinandernehmens und der Wartung des Ger ts besteht
59. ests against the right side frame 5 Tighten the two 2 screws in the full rate carriage 6 Mount the flatbed center platen glass plate 4 6 Service Manual 4036 501 DADF Repair Procedures 4 7 4036 501 Configuring the MFD Controller 4 8 Service Manual the controller card is installed for the Lexmark X7500 and X4500 a geography configuration must be performed in order for the fax modem to work properly Once the card is installed follow the instructions below to set the appropriate fax modem setting 1 O O1 P ND Turn on the power to the complete system Allow the system to go through the initial booting procedure Enter the SE menu by pressing 441 Select Fax Setting on the main SE menu Select Modem Type from the fax setting menu Select the appropriate geography from the list Reboot the system 4036 501 DADF Repair Procedures DADF Assembly Removal Remove the connector P J700 located at the rear side of the DADF assembly Open the DADF assembly Remove the two 2 thumbscrews Remove the black hinge loading plate from the right counterbalance Slide the DADF assembly toward the rear and lift up ARON ch DADF Assembly Hinge Loading Plate Thumbscrew P J700 DADF Repair Procedures 4 9 4036 501 Note Follow the steps in the order shown to install the DADF
60. exmark with diamond design are trademarks of Lexmark International Inc registered in the United States and or other countries Other trademarks are the property of their respective owners O Copyright Lexmark International Inc 2001 All rights reserved UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph 1 1 of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 and in applicable FAR provisions Lexmark International Inc Lexington KY 40550 U S A U S A P N 12G9083 Japanese P N 1234 Table of Contents Notices and Safety Information asesssasssressasrasasen ske vii Safety EE ET ETER iv vii Pref ce AA ERR BRE RR Ro EU General Information EE 1 1 aiu Less hoe BE aa 1 1 Tools Required for S VNE des 1 1 REDDE eie stade 1 2 Preparing the scanner for shipping 1 3 Duplex Auto Document Feeder DADF Power Principles of Operation 1 4 appes ergeet ee a 1 4 Scanner Principles of Operation esse 1 23 SCANS PONS
61. f the cable assembly scan rear into the groove in the pulley capstan rear DADF Repair Procedures 4 67 4036 501 12 Wind the spring exit hooking side of the cable assembly scan rear around the pulley capstan rear by 1 5 turns 13 Secure the spring exit hooking side of the cable assembly scan rear to the frame with gum tape 14 Wind the ball side of the cable assembly scan rear around the pulley capstan rear by 2 turns 4 68 Service Manual 4036 501 1 5 ROLL Gite Co Color Black Color Silver FRONT 15 Fasten the cable assembly scan rear wound to the pulley capstan rear with a gum tape 16 Engage the spring exit and the cable assembly scan rear to the pulley on the left side of the half rate carriage 17 Insert a ball of the cable assembly scan rear into a notch of the frame DADF Repair Procedures 4 69 4036 501 18 19 20 21 22 23 24 25 26 27 28 29 4 70 Service Manual Engage the cable assembly scan rear to the pulley idler Engage the pulley on the right side of the half rate carriage Engage the spring exit and auxiliary part of the cable assembly scan rear to the hook on the frame Secure the cable assembly scan rear to the full rate carriage Peel off the gum tape used Adjust the position and parallelism of the full rate carriage and half rate carriage Move the full rate carriage to check for smooth
62. ge 4 9 for more information Remove the user interface panel See User Interface Panel Removal on page 4 49 for more information Remove the flatbed scanner top cover assembly See Flatbed Scanner Top Cover Assembly Removal on page 4 50 for more information Remove two 2 screws Remove the two 2 brackets Remove the left DADF platen glass plate When reinstalling the DADF platen glass place ensure the white stripe on the glass is positioned toward the rear of the scanner 4 54 Service Manual 4036 501 Scanner Drive Motor Assembly Removal 1 NN OO A N Remove the DADF assembly See DADF Assembly Removal on page 4 9 for more information Remove the user interface panel See User Interface Panel Removal page 4 49 for more information Remove the flatbed scanner top cover assembly See Flatbed Scanner Top Cover Assembly Removal on page 4 50 for more information Release the harness and disconnect P J749 Unhook the motor spring from the base of the frame Mark the position of the screws that secure the scanner motor assembly Loosen the four 4 screws Slide the scanner main drive motor to the left to remove P J749 In replacing the scanner motor assembly secure it with the screws aligned with the marked positions DADF Repair Procedures 4 55 4036 501 Scanner Motor Card Assembly Removal 1 Remove the DADF assembly S
63. ged from None Visual check Insert the AC plug outlet into the outlet power unplugged None Visual check Insert the AC cable at power supply into power supply Power switch is off MFD controller cage Visual check Turn the power switch on Power supply power None Visual check Connect the distribution board connector connection failure Power supply output LVPS Tester check the Replace the power supply Power distribution Power distribution Tester check Replace the failed board failure board 5V GND power distribution board MFD controller board MFD controller board None If problem persists replace MFD controller board Note check method explains how to check the failed item T offline test display on the front panel The tester check is made by checking the voltage levels of the relevant units he visual check can be made by physically observing the part or observing the See Connector Locations page 5 1 for more information Diagnostic Information 2 7 4036 501 Strange sound generated DADF Cause Relevant unit Check method Maintenance method Paper setting failure Operation error Isthe paper correctly set in the upper paper guide Teach users to properly position the paper Paper failure Operation error Is the specified paper used None ADF pick roller improperly installed Pick roller assembly Visual
64. ified time to synchronize with the paper feed timing The paper restarts toward the registration roll After passing the DADF upper paper guide the top of the paper reaches and actuates the paper present sensor flag of the pre registration sensor 2 At the position just in front of the large roll the paper movement is interrupted again for the specified time to synchronize with the paper feed timing The paper is moved to the DADF platen glass by rotation of the large roll The DADF registration sensor card interrupts the movement for the specified time to synchronize with the scanning timing of the scanner The scanner restarts to move the paper to the platen glass by rotation of the large roll Utilizing the combined mechanism of the large roll rotation and the scanner full rate carriage side 1 of the paper is scanned After scanning the paper passes the gate through the lower path and moves to the exit reverse roll Along the way the timing of the exit reverse sensor detects the pass of the top of the paper The paper is stopped by the exit reverse roll and the reverse roll The paper movement is stopped at the time when the end of the paper passes on the exit reverse sensor 4036 501 Pick Roller Assembly Registration Sensor Pre Registration Sensor 1 Feed Roll Pre Registration Sensor 2 Nudger Roll Exit Gate Registration Roll Holder Assembly Paper Side 1 Separation Pad Platen Glass
65. interface Corrective action DADF motor failed Inspect replace the registration motor in the DADF DADF pre registration sensor 1 failed Inspect replace the pre registration sensor 1 in the DADF DADF pre registration sensor 2 failed Inspect replace the pre registration sensor 2 in the DADF DADF registration sensor failed Inspect replace the registration sensor in the DADF DADF exit sensor failed Inspect replace the exit sensor in the DADF DADF memory error Replace the DADF controller card assembly DADF EEPROM R W error Replace the DADF controller card assembly Scanner to DADF initial communication error Check the connection of the scanner to DADF cable Replace if defective Scanner to DADF framing overrun parity error Check the connection of the scanner to DADF cable Replace if defective Scanner to DADF BBC error Check the connection of the scanner to DADF cable Replace if defective Scanner to DADF no communication Check the connection of the scanner to DADF cable Replace if defective Scanner to DADF communication not established Check the connection of the scanner to DADF cable Replace if defective Scanner software error This error occurs when the controller card in the MFD cage receives information from the scanner it doesn t expect Turn off the power to the scanner system and restart If the problem persists rep
66. isted separately and identified by description NS Not Shown indicates that the part is procurable but is not shown in the illustration The capital letters E KL and S shown in an illustration stand for E ring KL Clip and Screw Note To obtain any of these parts not included in a FRU assembly refer to the Lexmark W820 printer parts catalog for a screw parts pack clamp kit pack or E clip kit pack Parts Catalog 7 1 4036 501 Assembly 1 DADF Cover and Solenoid 7 2 Service Manual 4036 501 Assembly 1 Ref Units Description number 1 12G6841 1 Cover DADF Front 2 12G6842 1 Handle DADF 3 12G6843 1 Cushion DADF 4 12G6844 1 Magnet DADF 5 12G6845 1 Solenoid DADF Exit Reverse Parts Catalog 7 3 4036 501 Assembly 2 DADF Cover Switch and Hinge Rear 7 4 Service Manual 4036 501 Assembly 2 Ref Units Description 1 12G6846 1 Tray Assembly DADF Input 2 12G6847 1 Door Assembly DADF Jam Access 3 12G6848 1 Lever Jam Access Door 4 12G6849 1 Cover DADF Top 5 12G6851 1 Plate Lever 6A 12G6852 1 Actuator Jam Door Open Switch 6B 12G6853 1 Switch Jam Door Open 7 12G6854 1 Strip Mylar Paper Guide 8 12G4191 1 DADF Thumbscrew 9 1206856 1 Hinge Left DADF 10 12G6858 1 Plate Hinge Loading 11 12G6857 1 Hinge Right DADF 12 12G6859 1 Bracket Retaining 13 12G6850 1 Cover DADF Rear Parts Catalog 7
67. istration roller adjustment Registration rollers IS paper skewing inside the DADF Adjust for paper skew See DADF Assembly Paper Skew Adjustment on page 4 4 for more information Improper DADF assembly height adjustment DADF hinge Is the paper jamming at the flatbed to DADF interface Adjust hinges See DADF Assembly Height Adjustment on page 4 3 for more information Diagnostic Information 2 9 Image unclear Cause Relevant unit Check method Maintenance method Lamp too dark Lamp Visual check Replace lamp Dirt on calibration reference Flatbed platen glass Visual check of white calibration strip on underside of flatbed glass Clean the flatbed platen glass with isopropyl alcohol Dirt on the mirrors Mirrors Visual check Clean the mirrors with isopropyl alcohol Dirt on the lens Lens Visual check Clean the lens with isopropyl alcohol Large jitter Cause Relevant unit Check method maintenance method Main drive motor None Visual check Connect the assembly connection connector failure Main drive motor Main drive motor Visual check Replace the motor failure Dynamic motor Dynamic motor Visual check Replace the dynamic damper failure damper damper 2 10 Service Manual Image does not appear Maintenance Cause Relevant unit Check metho
68. lace the main scanner board in the flatbed scanner If the problem continues replace the image processor card in the MFD controller cage Diagnostic Information 2 3 4036 501 MFD Controller Cage Errors MFD controller cage errors are errors detected by the MFD controller card within the MFD cage pertaining to electronic cards associated within the cage All errors are posted to the user interface touch screen along with audible beep codes and LED codes visible on the lower left side of the MFD controller card During the Power On Self Test procedure errors detected cause number of audible beeps to be produced three times The corresponding LED pattern continuously displays on the controller card until the system is powered down Use the following tables to read the beep LED codes and follow the recommended repair action There are two rows of four LEDs The LEDs are visible with the MFD controller cage lid removed The LED pattern shown depicts which LEDs are illuminated in the two rows Use caution when removing the lid while the system is powered Error Number Error message LED pattern displayed to user Corrective action number of beeps interface 21 2 Modem not found Modem on the MFD controller card is not found Replace the controller board 0009 22 2 PCI Bus failure Replace the MFD controller board COOC 0060 24 2 Serial Port failure Problem with TTY Serial
69. ll rate carriage to maintain the proper focal length from the document to the CCD card lens 2 DADF Mode Scans the document being fed through the DADF through the left side DADF platen glass The half and full rate carriages are in a fixed position during this type of scan Only the image projected through the left side DADF platen glass is obtained Scanner Registration DADF Platen Glass White Reference Platen Glass 1 30 Service Manual 4036 501 2 Diagnostic Information Start CAUTION Remove power from the scanner system before you connect or disconnect any cable or electronic board or assembly for personal safety and to prevent damage to the scanner system Warning It is extremely important not to connect or disconnect the 120 pin scanner cable to the MFD controller cage while the power is on as doing so greatly increases the chance of damaging the Low Voltage Digital Signaling devices in the image processor card and user interface cards Use the service error codes and service checks in this chapter to determine the corrective action necessary to repair a malfunctioning scanner system Service error codes for the printer attached to this scanner system can be viewed on the printer s operator panel display Refer to the printer s service manual for appropriate repair actions The service error codes for the scanner system are divided into two main categories Scanner errors and MFD errors Scanner errors detecte
70. ly The DADF pick up clutch distributes the drive power to the pick up gear when activated and then the power is delivered to the roller engagement shaft assembly The DADF large roll drive assembly provides the rotation power with the each gear of the large roll drive motor assembly through the belt 6 mm and the belt 4 mm The drive power is delivered to the pulley 1 through the belt 6 mm when the DADF large roll clutch is actuated and also to the large gear through the belt 6 mm The further drive power is delivered to the gear of the exit reverse roll through the belt 4 mm when the exit reverse clutch is actuated Registration Roller Gear Pick Up Lever Gear Exit Reverse Clutch Large Roll Clutch Large Gear DADF Pick Up Clutch Exit Reverse Roll Gear 1 8 Service Manual 4036 501 DADF Mechanical Drive Components The DADF mechanical drive is one major component with numerous belts pulleys and clutches that transmit drive to the various DADF transport rolls DADF Registration Roll Drive Motor There is 24VDC on the registration roll drive motor This motor is part of the DADF registration roll drive motor assembly DADF Main Drive Motor There is 24VDC on the step motor This motor provides drive power to the DADF main drive motor assembly Pick Up Clutch The clutch delivers drive power from the roller engagement shaft to the gears Exit Reverse Clutch The clutch delivers drive power from the main dri
71. mbly 12 Ref Units Description 1 12G6839 1 Panel Assembly User Interface 2 12G9080 1 Cover User Interface Extension 3 12G6837 1 Main Scanner Wiring Harness J731 lt gt J390 J734 lt gt J744 J745 J746 P747 J735 lt gt J748 4 12G6840 1 Cover Under Top Cover 5 1206838 1 Cover Assembly Flatbed Scanner Top Parts Catalog 7 25 4036 501 Assembly 13 Multifunction Device Controller Cage Electronics o 9060600060 9990000055 9000000060 9000000090 906000000060 5900000069 8900000009 9000000000 000000 2050 5258 7 26 Service Manual 4036 501 Assembly 13 Ref SC Units Description 1 12G6918 1 Power Supply Universal External 2 12G6907 1 Card Assembly Image Processor 3 12G6912 1 Cable HDD to Controller 4 Pin 4 1206898 1 Drive Assembly Hard Disk 5 12G6911 1 Cable HDD to Controller 40 Pin 6 12G9063 1 Fan CPU Cooling 7 56P9910 1 Card Assembly 128MB DIMM 8 12G6901 1 Card Assembly Controller all countries except Australia New Zealand 8 12G6902 1 Card Assembly Controller Australia New Zealand 9 12G6913 1 Cable Controller to Image Processor 10 12G6909 1 Cable Power Distribution to Controller 11 12G6910 1 Cable Power Distribution to Image Processor 12 12G6908 1 Card Assembly Power Distribution N S 12G9061 1 Parts Pack
72. ment Regi Roll 1 Regi Roll 2 Moves the adjustment plate in Moves the adjustment plate in direction A direction B 4 4 Service Manual 4036 501 Adjusts the feeder which controls paper skew in the DADF assembly Note Attach the adjustment plate by fitting its projection into the center of the feeder 1 Move registration rollers 1 and 2 parallel to each other 2 Loosen the screws in the adjustment plate and move the plate in the direction of A or B to adjust the paper skew Note After adjusting tighten the screws DADF Repair Procedures 4 5 4036 501 Adjusting the Position of Full Rate Half Rate Carriages 1 Remove the flatbed center platen glass plate 2 Loosen the two 2 screws that secure the full rate carriage 3 Move the half rate carriage until it rests against the stopper Note When the half rate carriage rests against the paper stop 2 pieces a gap may be generated on either the In or Out side stopper Before you move to the next step loosen the two 2 screws on the rear pulley capstan and again tighten the screws with the carriage pushed against the paper stop on either the In or Out side 4 While the half rate carriage rests against the steppers move the full rate carriage until it r
73. moves by the rotation of the large roll through the lower path of the gate toward the exit reverse roll When the exit reverse sensor detects the passing of the top of the paper the paper is nipped by the exit reverse roll The paper movement is interrupted for specified time when the end of the paper passes to the exit reverse sensor Pick Roller Assembly Exit Gate Up Registration Roll Holder Assembly Separation Pad Exit Reverse Roll Exit Reverse Sensor 4036 501 Step 2 Scan of side 2 The paper is re fed to the large roll by the counterclockwise rotation of the exit reverse roll After passing over the upper side of the exit gate the paper actuates the pre registration sensor 2 Movement of the paper is then interrupted for a specific amount of time to synchronize paper feed timing The paper moves toward the DADF platen glass The paper is interrupted to synchronize the feed timing with the scanning timing of the scanner by the command signal sent from the DADF registration sensor card The paper moves to the platen glass by the rotation of the large roll Side 2 of the paper is scanned at the platen glass After scanning the paper moves toward the exit reverse roll passing the gate through the lower path The paper is nipped by the exit reverse roll The paper movement is interrupted for a specified time when the end of paper passes on the exit reverse sensor DADF Registra
74. mponents The DADF paper path is made up of transport rolls and paper sensors 1 22 Service Manual Nudger Roll subassembly of pick roller assembly The roll moves paper toward the feed roll utilizing combination of mechanisms between the rotation of the roll and the friction of the separation pad Feed Roll subassembly of pick roller assembly The roll moves sheet of paper toward the registration roll utilizing combination of mechanisms between the rotation of the roll and the friction of the separation pad Registration Roll The roll moves paper toward the large roll by its rotation after the skew correction Large Roll The roll moves paper by its rotation toward the platen glass of the scanner for scanning and then moves toward the exit reverse roll Exit Reverse Roll The roll moves printed papers to the tray or turns over and sends the paper in the direction of the large roll to duplex Exit Reverse Solenoid This solenoid separates the reverse roll from the upper exit roll 4036 501 Scanner Principles of Operation Scanner Power The power cord carries AC line voltage to the external low voltage power supply LVPS The LVPS converts the 120 220VAC to regulated 5VDC 12VDC and 24VDC voltages The LVPS sends these voltages to the main power switch in the Multifunction Device MFD controller cage The voltage is then sent to the power distribution board The 5VDC and 24VDC voltages are sent through the image pr
75. nt side and pull out diagonally upward zl GB N P J13 P J14 4 16 Service Manual 4036 501 8 Remove six 6 screws in the lower cover of the door assembly as shown 9 Remove the lower cover of the door assembly along with the jam access door lever When replacing the jam access door lever align the key with the keyway in the lower cover as shown Jam Access Door Lever DADF Repair Procedures 4 17 4036 501 4 18 Service Manual DADF Top Cover Removal 1 2 3 Open the jam access door assembly See Jam Access Door Assembly Removal on page 4 16 for more information Remove four 4 screws in the DADF top cover Remove the top cover DADF Top Cover 4036 501 DADF Rear Cover Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Open the input tray cover assembly See DADF Input Tray Assembly Removal on page 4 15 for more information Loosen the two 2 screws Remove the rear cover RAO N Rear Cover DADF Repair Procedures 4 19 4036 501 DADF Jam Door Open Switch Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Disconnect P J32 Unclamp the harness Remove the screw from the switch
76. ocessing board and onto the scanner through the 120 pin scanner cable The voltage travels from the scanner cable into the scanner system board where it uses these voltages to run internal logic sensors clutches and the main motor assembly 120 Pin 120 220VAC Power Image Scanner gt Main Motor Scanner Low 5VDC 5VDG Distribution 9 VDC y processor Cable System RENE Voltage 12 12VDC Board Board Board 00 Clutch 24VDC 24VDC utches Supply 24VDC Duplex Motors Controller Cage Auto Document Clutches Feeder I Sensors General Information 1 23 4036 501 Scanner Control The scanner system card provides the logic and information processing that is necessary for the scanner to function Every electrical component within the scanner is connected to the scanner system card Sensors in the scanner send status information to the system card The system card processes that information shares it with the MFD controller cage and compares it to timing tables stored in ROM Acting on the results of the processing the system card sends commands to the various scanner components switching on off the motor and exposure lamp 1 24 Service Manual 4036 501 CCD LENS CCD Card Scanner System Card APS Sensor S
77. on P J734 PWBA scanner system board P J745 Sensor assembly registration P J734 PWBA scanner system board P J747 Switch assembly platen P J734 PWBA scanner system board Connector Locations 5 5 4036 501 p ze E E be P J730 P J748 P J749 5 6 Service Manual 4036 501 P J Connected to Other end connected to P J730 Scanner system board P J736 Scanner system board P J700 DADF control PWB P J742 Power supply lamp P J733 scanner system board P J743 Power supply lamp Lamp assembly XE FL P J746 Sensor assembly platen P J734 scanner system board P J748 PWB assembly scan Scanner system board P J749 PWB assembly scan P J735 scanner system board P J751 PWB assembly F Dual P J732 scanner system board Connector Locations 5 7 4036 501 Wiring Diagrams and Signal Information This section of the manual contains block diagrams BD to better illustrate the electrical relationships between components and assemblies within the Scanner Module Each wire in the diagrams is tagged with signal name and each wire is terminated at both ends with pin number Wiring Diagram Notations The wiring diagrams in this manual use the following circuit notations to describe components and signal paths within the printer A plug i Connection of pin 15 between P28 J28 28 J28 TT 15 2 The signal n
78. onnect the two harnesses P J26 Remove an E ring Remove the screw Remove the exit reverse solenoid Exit Reverse Solenoid 4 14 Service Manual 4036 501 DADF Input Tray Assembly Removal 1 ONO Of N Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Disconnect connector P J30 Unclamp the input tray assembly harness from the frame Remove the screw and washer toothed from the ground wire Remove the screw from the retaining bracket Remove the retaining bracket Open the input tray assembly upward Remove the screw Note This is a shorter screw 10 Remove the plate 11 Raise the front side of the input tray assembly and pull out diagonally upward Cover Assembly Tray Retaining Bracket DADF Repair Procedures 4 15 4036 501 DADF Jam Access Door Assembly Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Disconnect P J13 and P J14 Remove the screw from the jam access door lever Remove the screw from the jam access door assembly Push the door assembly toward the rear Raise the fro
79. or card interrupts the movement for the specified time to synchronize with the scanning timing of the scanner The sensor restarts to move the paper to the platen glass by the rotation of the large roll The image of the paper is scanned at the platen glass After scanning the paper passes the gate through the lower path and is moved to the exit reverse roll The rotation of the exit reverse roll discharges the paper onto the DADF output tray 4036 501 Pick Roller Assembly Registration Sensor Pre Registration Sensor 1 Pre Registration Sensor 2 7 Feed Roll Nudger Roll i Exit Gate Up l Registration Roll Holder Assembly Paper Side 1 Separation Pad Exit Reverse Roll Platen Glass Large Roll Exit Reverse Sensor 2 Duplex Paper Path Note The duplex paper path may be able to utilize two operational patterns due to its mechanical configuration design Those patterns are described in this section General Information 1 11 4036 501 Operational Pattern 1 Step 1 Scan of side 1 1 12 Service Manual The rotation of the nudger roll moves the paper on the DADF tray to the feed roll The paper moves to the registration roll by the rotation of the feed roll and the pad in the DADF individual separator pad When the pre registration sensor 1 located just in front of the registration roll detects the passing of the top of the paper the paper movement is interrupted for the spec
80. ower Supply Multifunction Device Multifunction Product Portable Document Format Pages Per Minute Printed Wiring Board Assembly Read Only Memory Screw System Engineer Tagged Image File Format Teletypewriter User Interface Volts alternating current Volts direct current 1 2 Service Manual 4036 501 Preparing the scanner for shipping The following procedure parks the carriages in safe position to prevent damage and clears memory of customer settings 1 From the home screen of the scanner system enter the following sequence on the numeric keypad 411 After a short pause the service engineer SE menu is displayed Press 9 on the numeric keypad to select the scanner menu Press 1 to select the Carriage Lock Screen Press the green Start button three times to move the carriage all the way to the left Press the red Stop button to leave the Carriage lock screen Press 2 to select the NVM Clear screen Press Start to clear NVM The scanner resets General Information 1 3 4036 501 Duplex Auto Document Feeder DADF Power Principles of Operation 120 220VAC The power cord carries AC line voltage to the external low voltage power supply LVPS The LVPS converts the 120 220VAC to regulated 5VDG 12VDG and 24VDC voltages The LVPS sends these voltages to the main power switch in the Multifunction Device MFD controller cage The voltage is then sent to the power distri
81. pper side Remove the screw and a toothed washer from the DADF 3 gear Pull the gear off the shaft Pullthe bearing off the shaft ONO 01 Ja N DADF Repair Procedures 4 43 4036 501 Tension Roller Spring and Tension Roller Removal 1 use N 4 44 Service Manual Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF rear cover See DADF Rear Cover Removal on page 4 19 for more information Unhook the tension roller spring Remove the spring Remove the two 2 screws from the tension roller Remove the roller 4036 501 DADF Upper Paper Guide Removal 1 Open the DADF jam access door assembly See DADF Jam Access Door Assembly Removal on page 4 16 for more information 2 Open the DADF upper paper guide to 90 angle 3 Pull the front hook of the paper guide out of the stud 4 Slide the rear hook of the paper guide and pull it out of the stud d i tn 5 DADF Repair Procedures 4 45 4036 501 DADF 4 Gear Removal Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Open the DADF upper paper guide See DADF Upper Paper Guide Removal page 4 45 for more information Remove the screw from the plate to the DADF assembly Remove the plate Remove th
82. produto Os profissionais destes servi os devem estar avisados deste facto e tomar os cuidados necess rios 4036 501 Informaci de Seguretat Aquest producte est dissenyat comprovat i aprovat per tal d acomplir les estrictes normes de seguretat globals amb la utililitzaci de components espec fics de Lexmark Les caracteristiques de seguretat d algunes peces pot ser que no sempre siguin bvies Lexmark no es responsabilitza de d altres peces de recanvi La informaci pel manteniment d 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 servei d aquest producte El personal professional ha d estar ne assabentat i prendre les mesures convenients tet FA MARE AE AHA 802 4 MEE ASS in SASS HASJ Sule e se BAL SHE VS AHO AE Au JENE ol ALS Beet ok AXE HOLS SYA TE SS HEIA JA FER def AL 558 2 ss a T R FF B9 4 TP VA ALAN AE DLE MAN RERE RP men BSB RAR SH EES GIS AX RD a Er TA zm T5 5 TA ie Dr ES BANE Fe Notices and Safety Information ix 4036 501 Preface x Service Manual This manual describes the Lexmark X7
83. r See DADF Top Cover Removal on page 4 18 for more information Remove the DADF rear cover See DADF Rear Cover Removal on page 4 19 for more information Release all harnesses from 3 clamps from the DADF main drive motor assembly Loosen the screw that adjusts the tension roller Remove the tension spring and shift the tension roller toward the slackened belt Disconnect the registration sensor Thread the cable through the drive motor bracket Disconnect P J20 Disconnect P J19 10 Disconnect P J28 11 12 13 14 4 28 Service Manual Remove the screw left side from the ground wire Remove the screw right side from the ground wire Remove five 5 screws from the DADF assembly Remove the assembly 4036 501 When replacing the assembly 1 Leave the drive motor belt off the gear until the bearing mates with the hole in the frame 2 Make sure the tension roller contacts the outside of the DADF main drive motor belt 3 Mesh the teeth of the belt with the gear and rotate the knob of the DADF main drive motor assembly to engage the belt with the gear DADF Repair Procedures 4 29 4036 501 DADF Separator Pad Assembly Removal 1 Open the input tray assembly 2 Remove the two 2 screws from the separator pad assembly 3 Pull out the assembly 4 30 Service Manual 4036 501 DADF Separator Pad Removal 1 Open the input tray cover See DADF Input Tray As
84. r interface command User interface CMD User interface communication single user interface command SPARE2 User interface communication single spare 2 SPARE2 User interface communication single spare 2 5 32 Service Manual 4036 501 Scanner System Card IPS lt gt 2 4 SCANNER P J751 IN P J732 SYSTEM CARD a 12V 22 gt SND 3 21 VOUTODD M 4 VOUTEVEN M 20 END 5 19 gt 6 18 VOUTODD S 7 VOUTEVEN S Ge GND 8 16 Je 9 15 gt 10 14 11 EI GND 13 gt 12 12 le CCD RS 18 11 te 14 i CCD CLK2 15 9 SE 16 CCD CLK1 GND 18 CCD CLP BL GND 2 4 175 EN 21 3 Ble CCD SH 5V 2 gt 4 TEV 23 1 de 24 Signal Description SCNVD5 scanning video data 5 SCNVD5 IIT scanning video data 5 SCNVD6 IIT scanning video data 6 SCNVD6 IIT scanning video data 6 SCNVD7 IIT scanning video data 7 SCNVD7 scanning video data 7 SCAN start of scan signal STRT SCANSTRT start of scan signal SCANRDY ready of scan signal SCANRDY IIT ready of scan signal Connector Locations 5 33 4036 501 Scanner
85. s 4 25 4036 501 DADF Registration Roll Drive Motor Assembly Removal 4 26 Service Manual 1 oun P N Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Remove the DADF rear cover See DADF Rear Cover Removal page 4 19 for more information Remove the KL clip from the rear roller engagement shaft assembly Slide and remove the bearing from the registration roll drive motor assembly Raise the rear side of the roller engagement shaft assembly and move it toward the left 4036 501 Disconnect the sensor connector P J25 Disconnect the motor connector P J27 Disconnect the clutch connector P J18 Release all harnesses from the clamps on the DADF registration roll drive motor assembly 11 Remove three 3 screws from the DADF assembly to the DADF registration roll drive motor assembly 12 Remove the DADF registration roll drive motor assembly P J18 P J27 AR dd 13 Remove the E ring 14 Remove the DADF 2 gear 15 Remove the DADF 1 gear DADF Repair Procedures 4 27 4036 501 DADF Main Drive Motor Assembly Removal 1 O ONO Of C0 N Remove the DADF top cove
86. sembly Removal on page 4 15 for more information 2 Remove the two 2 screws from the assembly 3 Slide the assembly to the right and out of the DADF assembly 4 Remove the screw and slide the separator pad assembly toward the front and raise to remove it DADF Repair Procedures 4 31 4036 501 DADF 1 2 Linkage Removals 4 32 Service Manual 1 use N Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Remove an E ring from the DADF 1 linkage Pull out the linkage Remove an E ring from the DADF 2 linkage Pull out the linkage 4036 501 Linkage Cover Removal 1 Remove the DADF top cover See DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information 2 3 Remove the screw from the frame 4 Remove the cover DADF Repair Procedures 4 33 4036 501 Paper Stop Spring and Paper Stop Removal 1 4 34 Service Manual EN Remove the DADF top cover DADF Top Cover Removal on page 4 18 for more information Remove the DADF front cover See DADF Front Cover Handle and Magnet Removal on page 4 11 for more information Remove the two 2 screws to drop down the
87. t displayed on the user interface Only beep code and LED patterns are generated for this error not detected or non functional Replace the memory DIMM Diagnostic Information 2 5 4036 501 Error number Number of beeps LED pattern Error message displayed to user interface Corrective action 52 Not enough memory The memory DIMM was found but not enough memory is present Replace the memory DIMM 61 Scanner communication fault Check the connection and condition of the 120 pin scanner cable Replace as necessary If problem persists check scanner and repair as necessary 62 06860 0090 Scanner ADF failed The DADF on the scanner failed Check connection of the DADF cable to the scanner Repair or replace the DADF as necessary 64 06860 SL tg Scanner main unit failed The flatbed scanner experienced a failure Repair or replace scanner as necessary 71 User interface failure problem was detected with the user interface Check the connection of the 120 pin scanner cable and user interface cables If cables are okay replace the user interface If problem persists replace MFD controller board 2 6 Service Manual 4036 501 Symptom Tables Power does not come on Cause Relevant unit Check method Maintenance voltage failure LVPS 5V 12V 24V GND method Unplug
88. ter Platen Glass Plate Removal on page 4 52 for more information Warning The scanner contains number of screws painted red Do not loosen or remove 2 Slide the full rate carriage lamp assembly to the cutout in the frame 3 Disconnect P J743 4 5 6 Remove the two 2 screws Release the cable from the harness Remove the full rate carriage lamp assembly DADF Repair Procedures 4 65 4036 501 Cable Assembly Scan Rear Removal Remove the DADF assembly Remove the user interface Remove the flatbed center platen glass plate Remove the cover assembly Remove the DADF platen glass Move the full rate carriage to the center Remove the screw to release the full rate carriage from the cable assembly scan rear NOORON P J742 P J743 2 P J746 V e P J736 P J751 6 P J730 7 P J748 P J749 8 Remove the spring exit 9 Remove the cable assembly scan rear 4 66 Service Manual 4036 501 In replacing the cable assembly scan rear Note The replacement procedures for the cable assembly scan is similar on the front side and the rear side Therefore only the rear side replacement is mentioned Perform replacement on the front side in the same manner Note Replace the cable assembly scan on either side do not remove it on the front side and the rear side simultaneously 10 Move the full rate carriage to the center 11 Insert the ball o
89. ter passing over the upper side of the exit gate the paper actuates the pre registration sensor 2 Movement of the paper is then interrupted for a specific amount of time to synchronize paper feed timing Registration Sensor Pre Registration Sensor 2 Exit Gate Down Exit Reverse Roll Platen Glass Exit Reverse Sensor Large Roll The paper moves toward the DADF platen glass The rotation of the exit reverse roll stops The paper moves toward the exit reverse roll by the rotation of the large roll passing the gate through the lower path Passing the exit reverse sensor paper discharges to the DADF output tray by the rotation of the exit reverse roll 1 16 Service Manual 4036 501 Exit Reverse Roll Exit Reverse Sensor General Information 1 17 4036 501 Operational Pattern 2 Step 1 High speed paper feed Pre Registration Sensor 2 Paper Side 1 Large Roll 1 18 Service Manual The rotation of the nudger roll causes the paper on the DADF tray to feed into the feed roll sheet of paper moves to the registration roll by the rotation of the feed roll When the pre registration sensor 1 located just in front of the registration roll detects the passing the top of the paper the paper movement is interrupted for the specified time to synchronize with the paper feed timing After the timing adjustment the paper restarts toward the registration roll After passing the chute the paper
90. tion A8 CPU address bus 8 A9 CPU address bus 9 A10 CPU address bus 10 11 CPU address bus 11 12 CPU address bus 12 A13 CPU address bus 13 A14 CPU address bus 14 A15 CPU address bus 15 A16 CPU address bus 16 17 CPU address bus 17 CRKTSTS Creation kit status signal BYTE Flash ROM switching signal between 8 bits and 16 bits FROMBUSY Flash ROM busy signal RST Flash ROM reset signal CRKSTS Creation kit status signal CRKTCMD Creation kit command signal CRKTCMD Creation kit command signal Connector Locations 5 27 4036 501 Scanner System Card IPS gt DADF SCANNER SYSTEM CARD 5 28 Service Manual DADF P J736 T P J700 1 7 PK 1 24 14 PK 14 24V 2 gt lt 2 24V 15 gt lt _ 15 24V 3 lt 3 24V 16 p lt 16 EI CMD 4 PK 4 CMD 17 17 STA 5 gt 5 STA 18 55 18 SCAN RDY 6 gt lt SND 6 19 PK 19 SCAN START 7 BK 7 GND 20 20 DADFHATC ER 8 gt 8 GND 21 pe 21 5V 9 lt 9 GND 22 kr 22 5V 10 END PK 10 23 23 5V 11 END 11 24 KT 24 FEI 5V IA 12 PK 12 GND 25 gt lt 25 GND 13 gt lt 13 GND 26 gt 26 4036 501 Signal Name Description
91. tion Sensor Pre Registration Sensor 2 Exit Gate Down Paper Side 2 Exit Reverse Roll Platen Glass Large Roll Exit Reverse Sensor General Information 1 19 4036 501 Step 3 Scan of side 1 The paper is re fed into the large roll by the CW rotation of the exit reverse roll After passing over the upper side of the exit gate the paper actuates the pre registration sensor 2 Movement of the paper is then interrupted for specific amount of time to synchronize paper feed timing DADF Registration Sensor Pre Registration Sensor 2 Exit Gate Down Paper Side 1 Exit Reverse Roll Platen Glass Large Roll Exit Reverse Sensor 1 20 Service Manual 4036 501 The paper moves toward the DADF platen glass The movement is interrupted for the specified time by the DADF registration sensor card in order to synchronize the paper feed timing with the scanning time The paper is restarted toward the platen glass by the rotation of the large roll The image of side 1 is scanned at the platen glass The paper moves toward the exit reverse roll by the rotation of the large roll passing the gate through the lower path The paper discharges to the DADF output tray by the rotation of the exit reverse roll Ou gt m Side 2 i Side 1 O VE Exit Reverse Sensor Exit Reverse Roll General Information 1 21 4036 501 DADF Paper Path Co
92. ve motor to the exit reverse roll Large Roll Clutch The clutch delivers drive power from the main drive motor to the large roll General Information 1 9 4036 501 DADF Paper Path The DADF moves the paper along the paper path using combination of rolls solenoids clutches and gears The DADF adjusts the scanning timing to the specified paper movement speed and fixing the cartridges of the scanner at the DADF position The DADF also allows the scanner to scan page 2 of the paper following page 1 using the gate change mechanism of the duplex function 1 Simplex Paper Path 1 10 Service Manual The rotation of the nudger roll moves the paper on the DADF tray to the feed roll The paper moves to the registration roll by the rotation of the feed roll When the pre registration sensor 1 located just in front of the registration roll detects the passing of the top of the paper the paper movement is interrupted for the specified time to synchronize with the paper feed timing The paper restarts toward the registration roll After passing on the DADF upper paper guide the top of the paper reaches and actuates the paper present sensor of the pre registration sensor At the position just in front of the large roll the paper movement is interrupted again for the specified time to synchronize with the paper feed timing The paper is moved to the DADF platen glass by rotation of the large roll Along the way the DADF registration sens
93. y send fax from workstation LDAP for fax number lookup e Scan Up to 40 ppm mono simplex scanning reversing duplex scanning TIFF JPEG PDF file formats scan to E mail scan to FTP scan to workstation LDAP for E mail address lookup ad hoc scanning Maintenance Approach The diagnostic information in this manual leads you to the correct field replaceable unit FRU or part for the scanner Use the error code tables service checks and symptom tables determine the corrective action necessary to repair a malfunctioning scanner system Tools Required for Service The removal and replacement procedures described require the following tools and equipment Magnetic tip Phillips screwdrivers large and small e Flat blade screwdrivers Analog volt ohmmeter a digital volt ohmmeter may also be used General Information 1 1 4036 501 Acronyms ADF AGC AOC APS CCD CPU DADF DIMM FTP GND HDD VO JBIG JPEG KBS KL LDAP LVPS MFD MFP PDF PPM PWBA ROM 5 SE TIFF TTY Ul VDC Automatic Direction Finder Automatic Gain Control Abnormal Operating Condition Automatic Paper Size Charged Couple Device Central Processing Unit Duplex Automatic Document Feeder Dual Inline Memory Module E ring File Transfer Protocol Ground Hard Disk Drive Input Output Joint Bitonal Image Group Joint Photographic Experts Group Knowledge Based System Clip Lightweight Directory Access Protocol Low Voltage P

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