Light Adjustment - Canon imageFORMULA P-215 Service Manual

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4) The adjustment proceeds automatically
while the progress screens are displayed.
Figure 5-210
5) The sheet is fed. After the adjustment is
complete, the progress screen disappears
and the screen returns to the service
screen.
Note: If the following error screen appears,
select "OK" and terminate the service
mode. Then start the service tool, ver-
ify the adjustment sheet and the op-
eration procedure and execute the
adjustment again.
Figure 5-211
COPYRIGHT © CANON ELECTRONICS INC. 2011

5. Light Adjustment

This mode performs fine adjustments on
the shading correction values since the
reading point differs between the white ref-
erence sheet inside of the reading unit and
the actual document.
If the scanned image quality is degraded,
perform this adjustment. Also perform this
adjustment after replacing the reading unit
or after replacing the control PCB recording
the adjustment data.
This mode can be used together with
other adjustment items. For details, refer to
[All Adjustment].
Adjustment sheet
The shading sheet is required to execute
this mode. Use TKM-0326 or TKM-0332,
which is the same shading sheet as the
one used for the P-150 or others. Do not
use a sheet with any dirt or creases.
Note: Shading sheets with a black line for
"Registration Adjustment[Auto]" can
also be used.
Operation Procedure
1) Clean feed path, roller, and reading glass.
CANON P-215 FIRST EDITION
CHAPTER 5 TROUBLESHOOTING
5-7

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