Xerox Phaser 8400 Service Manual page 350

1. Perform the wiper assembly alignment procedure as explained in the service manual.
2. Print Service Test Print 2: Weak and Missing Jets.
Is there severe color mixing from one row to the next row for the same jet?
If YES, replace the wiper assembly. Repeat Step 2.
3. Visually check the printhead faceplate.
Are there streaks or smudges of ink in the jet area of the printhead?
If YES, replace the wiper assembly. Go to Step 2.
4. Visually check the wiper blade.
Is there any separation or pitting on the wiper blade?
If YES, replace the wiper assembly. Go to Step 2.
5. Check the purge pump performance.
5a. Empty the waste tray.
5b. Select Eliminate Light Stripes from the printer front panel and run one cleaning cycle.
5c. Remove the waste tray and examine how much ink was purged. A single purge should resemble the
illustration.
Is purge mass noticeable less than what is pictured?
If YES, inspect the purge hoses for splits or tears.
Continued on next page...
(continued)
Xerox
A-8
WIPER/PURGE CHECKLIST
Phaser 8400 Printhead Checklist - Version 1.0
YES
Go to #3
YES NO
Go to # 4
YES
Go to # 5
YES NO
Go to # 6
075-0882-00
Phaser 8400 Color Printer
NO
NO
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