Phaser 6180 Color Laser Printer Service Manual 5-33
Print-Quality Troubleshooting
Horizontal Band, Voids, or Streaks
There are areas of the image that are extremely light or are missing entirely.
These missing areas form wide bands which cover a wide area horizontally,
perpendicular to the paper feed direction.
Initial Actions
■ Check the paper transfer path.
■ Ensure there are no debris on the transfer path.
Troubleshooting Reference Table
Applicable Parts Example Print
■ Transfer Unit, PL4.1.1
■ Print Cartridge (C/M/Y/K),
PL5.1.18-21
■ Laser Unit, PL5.1.2
■ MCU Board, PL9.1.20
■ Image Processor Board, PL9.1.27
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Check the blank line’s regular
intervals. Are there any blank lines on
the image?
Refer to “The
following table
lists the print-
quality defect
corrective
procedure, their
definition, and
the page where
each procedure
is provided.” on
page 5-23.
Go to step 2.
ABCDE abcde 12345
s6180-321
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