Side Registration Adjustment - Canon F1 Service Manual

5
Adjustments > Adjustment Method > Side Registration Adjustment

Side Registration Adjustment

Note:
There are 2 adjustment methods; for front side reading (reader side scanner unit) and
for back side reading (DADF side scanner unit).
a. Adjustment for front side reading
1) Set a test chart on the original pickup tray and make a 1-sided print.
2) Overlap the printed paper with the test chart.
3) Check that the rear side of the printed image is within the standard.
Standard: A </= 1 mm
< If the image is displaced toward rear >
Rear side of
printed image
A
Image rear side of
test chart
Feed direction
4) If it is out of standard, make an adjustment in service mode.
Lv. COPIER > ADJUST > ADJ-XY >
1 ADJ-Y-DF
T-5-44
If the image is displaced toward rear, increase the value (image is moved toward front).
If the image is displaced toward front, decrease the value (image is moved toward rear).
• Changes per 1 unit: 0.1 mm
• Adjustment range: -50 to 50 (default: 0)
5) Printout a test chart again and check that the image is within the standard.
5 Adjustments > Adjustment Method > Side Registration Adjustment
< If the image is displaced toward front >
Image rear side of
test chart
A
Rear side of
printed image
Feed direction
F-5-25
b. Adjustment for back side reading
1) Set a test chart on the original pickup tray upside down and make a 2-sided print.
2) Overlap the printed paper with the test chart.
3) Check that the rear side of the printed image is within the standard.
Standard: A </= 1 mm
< If the image is displaced toward rear >
Rear side of
printed image
A
Image rear side of
test chart
Feed direction
4) If it is out of standard, make an adjustment in service mode.
Lv. COPIER > ADJUST > ADJ-XY >
1 ADJY-DF2
T-5-45
If the image is displaced toward front, increase the value (image is moved toward rear).
If the image is displaced toward rear, decrease the value (image is moved toward front).
• Changes per 1 unit: 0.1 mm
• Adjustment range: -50 to 50 (default: 0)
5) Printout a test chart again and check that the image is within the standard.
5-19
< If the image is displaced toward front >
Image rear side of
test chart
A
Rear side of
printed image
Feed direction
F-5-26
5-19