Image Quality
Phaser 6600 and WorkCentre 6605 Xerox Internal Use Only
Service Manual
3-14
Vertical blanks
Possible causative parts
• Toner Cartridge Y/M/C/K (PL5.1.8/PL5.1.9/PL5.1.10/PL5.1.11)
•Imaging Unit Y/M/C/K (PL8.1.2/PL8.1.3/PL8.1.4/PL8.1.5)
• Laser Unit (PL2.1.1)
• Transfer Roller (PL14.1.99)
• Transfer Belt Assembly (PL6.1.1)
• Scanner Assembly (PL51.1.1)
Action Yes No
Is the unit under test an MFP? Go to action 1. Go to action 4.
1Check the error mode.
Does the error occur when copying or scanning?
Go to action 2. Go to action 4.
2 Check the original.
Is the original color clean?
Go to action 3. Change the
original.
3 Clean the Scanner document glass and CVT glass
Does this solve your problem?
The task is
complete.
Go to action 4.
4 Clean the Laser lenses as described in “Cleaning the Laser Lenses”
on page 6-7.
Does this solve your problem?
The task is
complete.
Go to action 5.
5 Check the laser beam path.
Are there any foreign substances between the Laser Unit and the
Y/M/C/K drum?
Particularly, check if any fibers and others are not under around the
development roller bottom cover.
Remove the
foreign
substance.
Go to action 6.
6 Check the paper transfer path.
Are there any smears or foreign substances on the path between
the paper entrance and the paper exit?
When the vertical blanks problem occurs, check if there are
problems such as foreign substances or rib deformation in the
corresponding location.
Remove the
foreign
substance.
Replace the
causative part.
Go to action 7.
7 Replace the Imaging Units.
Does this solve your problem?
The task is
complete.
Go to action 8.
8 Check the intermediate transfer belt.
Is the Transfer Belt Assembly dirty, damaged, or torn, and does it
work correctly?
Replace the
Transfer Belt
Assembly.
Go to action 9.
9 Check the Transfer Roller.
Is Transfer Roller contaminated, damaged, or worn, and does it
work correctly?
Replace
Transfer Roller.
Contact Xerox
Te ch ni ca l
Support.
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