3. AGC adjustment
1. Entering a provisional value
Change the foregoing values to "1,000".
• COPIER > ADJUST > CCD > LED-BW-R
(Adjustment of LED light-up time (R) at B&W
reading)
• COPIER > ADJUST > CCD > LED-BW-G
(Adjustment of LED light-up time (G) at B&W
reading)
• COPIER > ADJUST > CCD > LED-BW-B
(Adjustment of LED light-up time (B) at B&W
reading)
Change the foregoing values to "1,200"
• COPIER > ADJUST > CCD > LED-CL-R
(Adjustment of LED light-up time (R) at color
reading)
• COPIER > ADJUST > CCD > LED-CL-G
(Adjustment of LED light-up time (G) at color
reading)
• COPIER > ADJUST > CCD > LED-CL-B
(Adjustment of LED light-up time (B) at color
reading)
2. Adjust the white level in the following service mode.
• COPIER > FUNCTION > CCD > BW-AGC
(CIS intensity adjustment in ADF (B&W))
• COPIER > FUNCTION > CCD > CL-AGC (CIS
intensity adjustment in ADF (color))
3. If the operation was "successful", this procedure is
completed. (There is no need to write the value on
the service label.)
4. How to judge whether the operation was successful
or failed
Whether the operation was successful or failed is
not shown on the UI, so perform the following
procedure to judge if the operation was successful
or failed.
B&W mode
• COPIER > ADJUST > CCD > LED-BW-R
(Adjustment of LED light-up time (R) at B&W
reading)
• COPIER > ADJUST > CCD > LED-BW-G
(Adjustment of LED light-up time (G) at B&W
reading)
• COPIER > ADJUST > CCD > LED-BW-B
(Adjustment of LED light-up time (B) at B&W
reading)
Check the foregoing values. If all of them remain
"1,000", the operation result is judged to be "failed".
If the operation result is judged to be "failed", turn
OFF and then ON the power, and execute COPIER
> FUNCTION > CCD > BW-AGC again.
Color mode
• COPIER > ADJUST > CCD > LED-CL-R
(Adjustment of LED light-up time (R) at color
reading)
• COPIER > ADJUST > CCD > LED-CL-G
(Adjustment of LED light-up time (G) at color
reading)
• COPIER > ADJUST > CCD > LED-CL-B
(Adjustment of LED light-up time (B) at color
reading)
Check the foregoing values. If all of them remain
"1,200", the operation result is judged to be "failed".
If the operation result is judged to be "failed", turn
OFF and then ON the power, and execute COPIER
> FUNCTION > CCD > CL-AGC again.
4. Executing initial adjustment.
Follow the procedure shown below to execute initial
adjustment and enter the factory adjustment values.
1. Enter default setting values indicated on the
service label in the corresponding service mode
items.
2. Execute the following service mode to back up the
DC Controller setting values.
COPIER > FUNCTION > VIFFNC > STOR-DCN
3. The initial installation mode will be activated by
turning OFF and then ON the power. Configure the
following settings according to the instruction on
the screen.
• Setting of date/time
• Auto-gradation correction
4. Correction of coordinate position of Touch Panel in
the following service mode.
COPIER > ADJUST > PANEL > TOUCHCHK
4. Disassembly/Assembly
160
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