Phaser 7500 Printer Service Manual 5-41
Print-Quality Troubleshooting
IQ-14 Charging Roll Pitch White Stripes - 2
If the substances contained in the CLN-Roll get stuck to the BCR at the BCR and
CLN-Roll NIP sections, the resistance on the BCR gets reduced and may cause the
appearance of white stripes in the FS direction.
Cause
• This may occur when the MC has been resting for a long time or in the early
mornings. (Halftone image).
Initial Actions
• Check the paper transfer path.
• Ensure there are no debris on the transfer path.
Troubleshooting Reference
Applicable Parts Example Print
Troubleshooting Procedure
Step Actions and Questions Yes No
1 On a halftone image, check that
lines with 38 mm pitch appear in
the FS direction.
Are there lines with 38 mm appear
in the FS direction?
Make
approximately
10 to 30
printouts.
This
disappears
over time.
Troubleshooting
complete.
Note:
If the fault lies with the Y, M, or C Drum, print full-color images. If it is with the K
Drum, print either full-color or black & white images.
Charging Roll Pitch White Stripes 2
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