Xerox WorkCentre Pro 423 Service Manual page 284

WorkCentre Pro 423/428
REP 3.2.1 Lens Assembly and CCD PWB
Ref. PL PL3.2
Removal
On printer or Fax-equipped machines, ensure that
outstanding jobs have cleared before servicing or
interrupting the power to the machine as follows:.
• FAX equipped machines: Ensure that the "Job in
Memory" indicator on the control panel goes out.
Press "Job Status:Stop" button and confirm that the
job has cleared from the "Current Jobs" folder.
• Printer machines: Ensure that "Ready to print or
fax" is indicated on the printer control panel.
WARNING
Switch off the machine and disconnect the
power cord.
CAUTION
Be careful not to damage parts by static electricity.
Electronic parts may be damaged by static electricity. Be
sure to wear a wristband when handling electronic parts. If
no wristband is available, touch the metal frame before work
to eliminate static electricity as far as possible.
Procedure
1. Remove the following parts.
•
Platen Glass(REP3.1.1)
•
CCD Cover(PL3.2)
4-10 CHAPTER 4 DISASSEMBLY/ASSEMBLY AND ADJUSTMENT
03/02
2. Remove the Lens Assembly and CCD PWB.
(Figure-1)
1) Disconnect the connectors (2).
2) Remove the screws and washers (4).
3) Remove the Lens Assembly and CCD PWB.
(Figure-1) j0hn4305
Installation
Procedure
1. Perform the removal steps in reverse order.
4.2 Disassembly and Assembly
REP 3.3.1 Timing Pulley
Ref. PL PL3.3
Removal
On printer or Fax-equipped machines, ensure that
outstanding jobs have cleared before servicing or
interrupting the power to the machine as follows:.
• FAX equipped machines: Ensure that the "Job in
Memory" indicator on the control panel goes out.
Press "Job Status:Stop" button and confirm that the
job has cleared from the "Current Jobs" folder.
• Printer machines: Ensure that "Ready to print or
fax" is indicated on the printer control panel.
WARNING
Switch off the machine and disconnect the
power cord.
Procedure
1. Remove the following parts.
1) Platen Cover( PL3.5) or DADF Assembly
(REP10.1.1)
2) Platen Glass(REP3.1.1)
3) Control Panel(REP3.6.1)
4) Top Cover(PL3.6)
2. Remove the Timing Pulley. (Figure-1)
1) Remove the spring.
2) Loosen the Screw of the Motor.
3) Remove the Damper.
4) Remove the Timing Pulley.