Canon imagePRESS 1110, Service Manual

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Adjustment > Major adjustment > Image location adjustment > Adjustment in Service mode
Adjustment > Major adjustment > Image location adjustment > Adjustment in Service mode
■
Adjustment of primary charging assembly (If rear side of the
printed test image is dark)
Procedure of parts
replacement
Refer to Removing Primary Charging Assembly
Procedure of
adjustment
[A] [C]
[B] [D]
[1] [2]
1) Rotate the plastic screw [B] clockwise for one rotation. Install primary
charging assembly to main unit in accordance with the replacement
procedure for primary charging assembly and test print to check printed
image.
2) If the rear side of the test print image is still dark, rotate the plastic screw [B]
clockwise one more round. Install primary charging assembly to main unit in
accordance with the replacement procedure for primary charging assembly
and test print to check printed image.
3) If the rear side of the test print image is still dark, rotate the plastic screw [A]
counter clockwise for half rotation. Install primary charging assembly to main
unit in accordance with the replacement procedure for primary
4) If the rear side of the test print image is still dark, rotate the plastic screw [D]
clockwise for one rotation. Install primary charging assembly to main unit in
accordance with the replacement procedure for primary charging assembly
and test print to check printed image.
5) If the rear side of the test print image is still dark, rotate the plastic screw [D]
clockwise one more round. Install primary charging assembly to main unit in
accordance with the replacement procedure for primary charging assembly
and test print to check printed image.
6) If the rear side of the test print image is still dark, rotate the plastic screw
[C] counter clockwise for half rotation. Install primary charging assembly to
main unit in accordance with the replacement procedure for primary charging
assembly and test print to check printed image.
MEMO If rear side of the printed test image is dark [2], repeat the procedure 1) - 6)
until consistent darkness is obtained.
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Image location adjustment
■ Adjustment in Service mode
Procedure of
adjustment
This will effect to all the media that has already been set by the user.
Performed after related parts replacement etc, only in the condition when the
image position is displaced when the recommended paper is used.
1. Skew adjustment
1) Use a magnifying glass (CK-0056) to measure L1 and L2 for right edge
margin on the test print. Adjustment is on 0.05 mm basis.
2) Figure the skew adjustment amount by the following formula:
Skew adjustment amount R = (L2 – L1) / Lx ×15200
(Round off the decimals)
If the skew adjustment amount R is 0.2 or more (R >/= 0.2, R </= -0.2),
execute step 3).
3) Enter the value in the following service mode.
Service mode > COPIER > ADJUST > FEED-ADJ > REG-SKEW
2. Magnification ratio adjustment in main scanning direction
1) Measure the image length Ly in main scanning direction on the test
print.
Ly
2) Calculate the magnification ratio in main scanning direction (ratio): My,
and the value to enter in Service Mode: SMy.
My = (Ly' / Ly) ×100
A3 paper: Ly’ = 292 mm
11 x 17 inch paper: Ly’ = 274 mm
SMy = (My - 100) ×100
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