Xerox WorkCentre Pro 423, Service Manual

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03/02 Contents
WorkCentre Pro 423/428 4-1 CHAPTER 4 DISASSEMBLY/ASSEMBLY AND ADJUSTMENT
Contents
4.1 I
NTRODUCTION
...........................................................................................2
4.2 D
ISASSEMBLY AND
A
SSEMBLY
......................................................................3
1. Drive.........................................................................................................3
REP 1.1.1 Main Drive Assembly..................................................................3
2. Paper Transport .......................................................................................4
REP 2.2.2 Size Cam ....................................................................................4
REP 2.4.1 R/H Chute Assembly ..................................................................5
REP 2.4.2 Exit Assembly .............................................................................6
REP 2.4.3 OCT Assembly ...........................................................................6
REP 2.11.1 Registration Chute Assembly ..................................................7
3. IIT.............................................................................................................8
REP 3.1.1 Platen Glass ...............................................................................8
REP 3.1.2 IIT/IPS PWB ...............................................................................9
REP 3.2.1 Lens Assembly and CCD PWB ................................................10
REP 3.3.1 Timing Pulley ............................................................................10
REP 3.3.2 Carriage Cable ......................................................................... 11
REP 3.4.1 Exposure Lamp ........................................................................13
REP 3.4.2 Lamp Wire Harness..................................................................14
REP 3.5.1 Platen Cushion .........................................................................15
REP 3.6.1 Control Panel............................................................................16
4. ROS .......................................................................................................17
REP 4.1.1 ROS..........................................................................................17
6. Fuser......................................................................................................18
REP 6.1.1 Fuser Assembly........................................................................18
REP 6.2.1 Pressure Roll ............................................................................18
REP 6.2.2Heater Rod...................................................................................19
7. Electrical ................................................................................................20
REP 7.2.1 MCU/SW PWB Assembly.........................................................20
REP 7.5.1 ESS PWB Assembly.................................................................21
8. Covers....................................................................................................22
REP 8.1.1 Top Cover .................................................................................22
9. Cabinet...................................................................................................22
REP 9.1.1 Drive Joint ................................................................................22
REP 9.5.1 Option Mother PWB..................................................................24
REP 9.7.1 Feed Roll ..................................................................................25
REP 9.7.2 Retard Roll................................................................................25
REP 10.1.1 DADF Assembly....................................................................26
REP 10.1.2 DADF Platen Glass ...............................................................27
REP 10.1.3 DADF Platen Cushion .......................................................... 27
REP.10.2.1 DADF Feeder Assembly....................................................... 28
REP 10.3.1 Left/Right Counter Balance .................................................. 29
REP 10.5.1 DADF Nudger Roll................................................................ 29
REP10.5.2 DADF Feed Roll ................................................................... 30
REP 10.6.1 Reg Roller ............................................................................ 32
REP 10.6.2 Size Sensor Assembly ......................................................... 34
11. MSI ........................................................................................................ 34
REP 11.1.1 MSI Assembly ...................................................................... 34
REP 11.4.1 MSI Feed Roll....................................................................... 35
REP 11.4.2 MSI Retard Roll .................................................................... 36
13. Finisher.................................................................................................. 36
REP 13.1.1 Finisher Assembly ................................................................ 36
REP 13.4.1 Stapler Motor ........................................................................ 37
REP13.5.1 Reverse Motor Belt............................................................... 39
REP 13.5.2 Feed Motor Belt.................................................................... 40
REP 13.12.1Compiler Motor..................................................................... 41
REP 13.14.1Exit Roller Assembly ............................................................ 42
REP 13.14.2In-Roller Assembly ............................................................... 43
REP 13.14.3 Lower Paper Guide ............................................................. 44
REP 13.16.1 Finisher Control PWB.......................................................... 45
4.3 A
DJUSTMENT
........................................................................................... 46
3. IIT 46
ADJ 3.1.1 IIT Lead Edge Registration (Home........................................... 46
Position in Slow Scan Direction)............................................................... 46
ADJ 3.1.2 IIT Side Registration (Home Position in ................................... 47
Fast Scan Direction) ................................................................................. 47
ADJ 3.1.3DADF Registration .................................................................... 48
ADJ 3.1.4 Magnification Adjustment SEF (Slow Scan Direction) ............. 48
ADJ 3.1.5 Magnification Adjustment in LEF (Fast Scan Direction) ........... 50
ADJ 3.4.1 Position of Full/Half Rate Carriage........................................... 51
7. ELECTRICAL ....................................................................................... 51
ADJ 7.1 Registration Procedure ............................................................... 51
ADJ 7.2.1 IOT Lead Edge Registration .................................................... 52
ADJ 7.2.2 IOT Side Registration............................................................... 52
ADJ 7.2.3 Edge Erase Amount Adjustment.............................................. 52
13. Finisher .............................................................................................. 53
ADJ 13.6.1 Adjusting the Paddle Position ................................................ 53