Canon ImageRunner iR8500 Series User Manual

Chapter 14
14-8
F-14-11
14.1.12 Making Checks on the Scanner Side(Checking Halftone Density)
0008-9667
/ iR8070
F-14-12
Execute the following service mode:
COPIER>FUNCTION >CCD>CCD-ADJ
Execute the following in service mode:
COPIER>FUNCTION>CCD>CCD-ADJ
YES
YES
NO
NO
Make a copy
of the NA3 Chart in text mode.
Is the white background
foggy?
Is the
white background
foggy?
Increase the white level target value for
shading correction in service mode:
COPIER>ADJUST>CCD>SH-TRGT
(Limit the increase to 40).
Go to
“Checking for Fogging”
on the printer side.
YES
NO
NO
YES
Make a copy
of the NA3 Chart in AE mode.
Is the white background
foggy?
Is the
white background
foggy?
Decrease the value in the following
service mode:
COPIER>ADJUST>AE>AE-TBL.
Go to
“Checking
Halftone Density”
Increase the value of the
following in service mode:
COPIER>ADJUST>DENS>
DENS-ADJ.
End.
YES
YES
NO
NO
Make a copy of the
NA3 Chart in text/photo
mode.
Go to
“Checking Halftone Density”
on the printer side.
Does the
density of gray scale
No. 8 (halftone)
change?
If too light,
If too dark,
Make a copy
of the NA3 Chart in text/photo
mode. Is the density of No. 8 proper as
compared with No. 7 through
No. 9 of the Test
Chart?
Decrease the value of the
following in service mode:
COPIER>ADJUST>DENS>
DENS-ADJ.

Canon ImageRunner iR8500 Series Specifications

General

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