Xerox Phaser 8400 Service Manual page 91

Troubleshooting Procedure for Wiper/Media Gearbox (Continued)
Step Questions and Actions
4 1. Run the Wiper Drive test.
2. Did the test pass?
5 1. Run the Wiper Alignment test (see "Wiper
Alignment Procedure" on page 6-2).
2. Did the test pass?
6
1. Inspect the wiper system for improper
operation, obstructions, or damage (broken
gear or belt). Look for ink in the wiper belt
channels.
2. Ensure the wiper system is properly aligned
(see "Wiper Alignment Procedure" on
page 6-2).
3. Did this correct the problem?
7 1. Run the Head Maintenance Clutch test.
2. Did the test pass?
8 1. Is the head lock mechanism on the right end
of the exit module assembly is functioning
properly?
9 1. Are there obstructions or spilled ink on the
wiper blade, the tilt gear drive path, or under
the printhead?
2. Is the waste tray overfilled?
8,0XX.6x Errors - Program Faults
a. Reset NVRAM, and then retest.
b.
Ensure ground integrity for the printer (see "Ensuring Ground Integrity" on
page 4-77).
Service Manual
Yes
Go to Step 5. Go to Step 6.
Go to Step 7. Go to Step 6.
Complete. Go to Step 7.
Go to Step 8. Replace the
maintenance
clutch.
Go to Step 9. Replace the
exit assembly.
Clean the inside
of the printer
and retest.
No
3-25