Adjusting The Magnification - Canon DADF-AV1 Service Manual

3. Select the following item in the service mode to check the value, and write down the new adjustment value on the
service label.
COPIER > ADJUST > ADJ-XY > STRD-POS
NOTE:
The service label affixed to the back of Reader Front Cover.
CAUTION:
If the DADF fails auto adjustment and indicates [NG], go through the following:
1. Clean the platen roller of the DADF and the ADF scan glass of the host machine, and then execute the above auto
adjustment again.
2. If the auto adjustment operation still fails, make the manual adjustment with the following service mode.
COPIER > ADJUST > ADJ-XY > STRD-POS
Change the setting, and adjust on the best setting checking the output copy image.
3. When the setting value was changed in step 2, write down the new numerical value in the service label.

Adjusting the Magnification

1. Copy the test chart with the DADF.
2. Compare the image length in feed direction between the copy and the test chart. As necessary, make the following
adjustment.
■ Adjustment Procedure
1. Select the following item in the service mode.
FEEDER > ADJUST > LA-SPEED
79
5. Adjustment