Canon iR5000 Service Handbook page 166

CHAPTER 4 SERVICE MODE
SHDG-POS
Use it to enter the data for optimum position auto adjustment in reference to
the standard white plate for shading correction.
Caution Do not use this mode item. It is for use at the factory only.
SH-PS-ST
Use it to execute optimum position auto adjustment in reference to the
standard white plate for shading correction.
Caution The following must be executed before initiating auto adjustment in this
mode: COPIER>FUNCTION>CCD>CCD-DJ.
Using the Mode
1) Clean the back of the copyboard glass.
2) Select the mode item, and press the OK key.
• The machine executes auto adjustment. (several tens of seconds)
• The machine stops automatically at the end of the operation.
EGGN-POS
Use it to execute auto adjustment for the edge gain correction position for
the CCD. (The CCD edge gain correction mechanism is effective only when
an ADF is in use.)
Caution • If the CCD unit has been replaced, be sure to execute the following in
• If the CCD unit, No. 1 mirror mount, or No. 2 mirror mount has been
Using the Mode
1) Open the ADF (copyboard cover; be sure to do so).
2) Select the item, and press the OK key.
3) Wait until auto adjustment ends (about 1 sec).
4) See that auto adjustment ends automatically and the results (OK/NG)
• If NG is indicated, check the following, and execute adjustment once
4-62
advance: COPIER>FUNCTION>CCD>CCD-ADJ.
replaced, execute this mode.
are displayed.
a. Is the ADF (copyboard cover) open?
b. Is the reading glass mounted correctly?
c. Is the edge gain correcting plate attached to the reading glass
normal?
d. Is the scanning lamp on?
COPIER>FUNCTION