Making Checks On The Scanner Side(Checking For Fogging) - Canon ImageRunner iR8500 Series Service Manual

Chapter 14

14.1.16 Making Checks on the Scanner Side(Checking for fogging)

iR105i/iR105+ / iR9070
14-10
<Checking the Solid Black>
Is the
image of gray Scale
No. 1 (solid black) copied of the
NA3 Chart in text mode
too light?
YES
Check the life of the
scanning lamp; if its
end is reached,
replace it.
Clean the following:
1. Mirrors
2. Lens
3. Standard white plate
4. Dust-proofing glass
5. Scanning lamp
6. Reflecting plate
Execute potential
control.
Turn off and then on
the power switch, and
make a copy.
Execute the following in service mode:
1. COPIER>FUNCTION>CCD>CCD-ADJ
2. COPIER>FUNCTION>CCD>LUT-ADJ
Is gray scale
No. 1 (solid black) too
light?
YES
Go to
"Checking the Solid Black"
on the printer side.
NO Go to
"Checking for fogging"
NO
F-14-15
0008-3713