Making Checks On The Scanner Side (Initial Checks); Making Checks On The Scanner Side (Checking The Density Slope) - Canon ImageRunner iR8500 Series Service Manual

Chapter 14

14.1.8 Making Checks on the Scanner Side (Initial Checks)

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14.1.9 Making Checks on the Scanner Side (Checking the Density Slope)

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14-6
Check PG6 (halftone)
No. 6 and No. 7 (halftone),
Set the following in service mode
to between 1 and 9:
ADJUST>DENS>DENS-ADJ.
- A higher value makes images
darker.
Does the
NO
image have a vertical
line?
YES
Clean the following:
1. Mirrors
2. Lens
3. Standard white plate
(mounted to back of
copyboard glass)
4. Copyboard glass
Execute the following in service mode:
COPIER>FUNCTION>CCD>CCD-ADJ
Compared with
YES
is the density about
the same?
NO
F-14-7
Go to
"Checking the Density Slope"
F-14-8
End.
0008-9663
0008-9664