Canon imageRUNNER ADVANCE 4551i Service Manual page 334

2. Change the value as gap A in the figure.
• If the printed image is longer: Increase the value. (The image shrinks in the feed direction.)
• If the printed image is shorter: Decrease the value. (The image extends in the feed direction.)
Setting Value; 1=0.1%
3. When the setting value was changed in step 2, write down the new numerical value in the service label.
NOTE:
The service label affixed to the inside of Reader Front Cover.
● Adjusting the Image Position (Main Scanning Direction)
1. Copy the test chart with the DADF.
2. Compare the horizontal registration between the copy and the test chart. As necessary, make the following
adjustment.
Adjustment Procedure
1. Select the following item in the service mode.
(LV.1) COPIER > ADJUST > ADJ-XY > ADJ-Y-DF
< If the image is longer >
Trailing edge of
Trailing edge of
test chart
printed image
A
Feed direction
< If the image is shorter >
Trailing edge of
printed image
Trailing edge of
A
Feed direction
321
test chart
5. Adjustment