Canon ImageRunner iR8500 Series User Manual

Chapter 14
14-5
F-14-6
14.1.7 Making Checks on the Printer Side (Checking Halftone Density)
0008-3710
iR105i/iR105+ / iR9070 / iR85+ / iR8070
Is the output foggy?
Is the reading of
<VDM> between 390
and 460?
Is the reading of
<VL1M> between 50
and 90?
Check the following; if
faulty, replace it:
1. Laser output
2. Potential control
system
Decrease the value of the following
in service mode:
ADJUST>DEVELOP>DE-OFST.
- A lower value makes images
lighter.
NO
YES
NO
YES
NO
YES
Check PG4 (blank)
Make the following in service
mode:
COPIER>DISPLAY>DPOT>VDM.
Make the following selections in
service mode:
COPIER>DISPLAY>DPOT>VL1M.
Check the potential
control system; if
normal, replace the
photosensitive drum.
Go to
"Checking Halftone Density"

Canon ImageRunner iR8500 Series Specifications

General

Brand	Canon
Model	ImageRunner iR8500 Series
Category	All in One Printer
Language	English