Chapter 3 Image Quality Troubleshooting
3.2 Image Quality Troubleshooting
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9
Check the drum charge status.
Cover the ROS ASSY window with a sheet of paper and per-
form a test print.
Is the test print result black?
(If the drum is charged correctly, the test print result is white.)
Replace the
HVPS. (REP
18.3)
Go to step 10.
10
Check the ROS ASSY.
Cover the half of the ROS ASSY window with a sheet of paper
and perform a test print.
Is the half page of the test print result white and the other half
page is black?
(If the ROS is normal, the other half page is not black but test
patterned.)
Replace the
ROS ASSY.
(REP 2.1)
Replace the
printer.
Step Check and Action Yes No
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