Canon imageRUNNER ADVANCE C5500 Series Service Manual page 438

3. Check that the leading edge of the printed image is within the standard range.
Standard range: A </= 1 mm
< If the image is displaced toward trailing edge > < If the image is displaced toward leading edge >
Image leading edge of
4. If it is not within the standard range, make an adjustment with the following service mode
• FEEDER > ADJUST > DOCST2
If the printed image is displaced toward the trailing edge: Increase the value (by moving the image toward the leading
edge).
If the printed image is displaced toward the leading edge: Decrease the value (by moving the image toward the trailing
edge).
• Amount of change per increment: 0.1 mm
• Adjustment range: -50 to +50
5. Print the test chart again, and check that the image is within the ranges of the standard.
■ Magnification ratio adjustment
NOTE:
• There are two adjustment methods: One for reading the front side (Scanner Unit on the Reader side) and another for reading
the back side (Scanner Unit on the DADF side).
• This adjustment is performed by comparing the images printed by stream reading and Copyboard reading.
● Adjustment of the Paper Front Reading
1. Place a test chart on the Copyboard Glass of the connected equipment and print. This is called Print 1.
2. Place a test chart on the Document Pickup Tray and perform a 1-sided print. This is called Print 2.
3. Overlay the Print 2 onto the Print 1.
Leading edge of
printed image
test chart
A
Feed direction
Image leading edge of
Leading edge of
printed image
A
Feed direction
424
5. Adjustment
test chart