Xerox 5400N - Phaser B/W Laser Printer, Service Quick Reference Manual

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Phaser 5400 Laser Printer Service Guide 139
RAP 52 Laser Safety Switch
The Print Cartridge is not in place or is installed incorrectly.
Table 81 Error Code J3: Laser Safety Switch Open Troubleshooting
Step Actions and Questions Yes No
1 PRINT CARTRIDGE INSPECTION
1. Open the Top Cover.
2. Remove the Print Cartridge.
3. Inspect the tab on the left side of the Print Cartridge
that actuates the Print Cartridge Switch.
Is the tab on the Print Cartridge intact?
Go to
Step 2. Replace the
Print
Cartridge
[PL 8.1,
page 402 ].
2
PRINT CARTRIDGE SWITCH ACTUATOR
INSPECTION
Press and release the Print Cartridge Switch Actuator.
Does the Print Cartridge Switch Actuator move
smoothly?
Go to
Step 3. Replace the
CRUM
board
[RRP 3.7,
page 281 ].
3 CONTINUITY CHECKS
1. Switch the printer power OFF.
2. Install the Print Cartridge and leave the Top Cover
open.
3. Remove the Left Side Cover [RRP 1.1, page 250 ].
4. Remove the Print Engine Controller Board Cover
[RRP 8.5, page 310 ].
5. Disconnect P/J21 from the Print Engine Controller
Board.
6. Check for continuity between J21-4 and J21-3 as you
lift and lower the Print Cartridge.
Is there continuity between J21-4 and J21-3
when you lower the cartridge and no continuity
when you lift the cartridge?
Replace the
Print Engine
Controller
board
[RRP 8.5,
page 310 ]
and retest. If
problem still
exists, go to
Step 4.
Replace the
CRUM
board
[RRP 3.7,
page 281 ].
4 SUSPECT COMPONENTS
The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedure, replace each
component or troubleshoot each area listed below, one
at a time, until you isolate and solve the problem.
■
Print Cartridge [PL 8.1, page 402 ]
■
CRUM Board Assembly [RRP 3.7, page 281 ]
■
Print Engine Controller Board [RRP 8.5, page 310 ]
■
Wiring and connectors linking the components