Adjusting The Horizontal Registration When Replacing The Duplex Unit - Canon iR3570 Service Manual

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7) Loosen the fixing screw [2] of the adjusting plate [1].
8) While referring to the index you check in step 5), move the adjusting plate
back and forth. Moving the adjusting plate toward the rear of the machine
will increase the margin along the image front.
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9) Tighten the fixing screw.
10) Put the cassette 1 back into the machine.
11) Make a copy using the cassette 1 as the source of paper; then, check to
make sure that the margin in the image front direction is 2.5 +/-1.5 mm.
12) Fit the grip (right front) in place.
13) Mount the right front cover of the machine.
- Adjusting the Cassette 2
6) Loosen the fixing screws [2] on the horizontal registration adjusting plate
[1] of the cassette.
7) While referring to the index you checked in step 5), move the adjusting
plate back and forth. Moving the adjusting plate toward the rear of the ma-
chine will increase the margin along the image front.
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8) Tighten the fixing screw.
9) Put the cassette 2 back in place.
10) Make a copy using the cassette 2 as the source of paper, and check to
make sure that the margin in the image front direction is 2.5 +/-1.5 mm.
11) Mount the right front cover.
- margin adjustment (2nd side; small-size)
1) Make a double-sided copy (small-size) using the cassette you have adjust-
ed for the 1st side as the source of paper, and check to make sure that the
front margin is 2.5 +/-2.0 mm.
(-) (+)
0
2
4
6
8
10
2.5 ±2.0 mm
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2) If the value is not as indicated, change the adjustment value of the 2nd side
horizontal registration for small-size.
- COPIER>ADJUST>FEED-ADJ>ADJ-REFE
An increase of '1' will decrease the margin at the front by 0.1 mm.
3) Record the new setting on the service label.
- ADJ-REFE
- margin adjustment (2nd side; large-size; A4/LTR or longer in feed di-
rection)
1) Make a double-sided copy (large-size) using the cassette you have adjust-
ed for the 1st side as the source of power, and check to make sure that the
front margin is 2.5 +/-2.0 mm.
(-) (+)
0
2
4
6
8
10
2.5 ±2.0 mm
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2) If the value is not as indicated, change the adjustment value for 2nd side
horizontal registration for large-size.
- COPIER>ADJUST>FEED-ADJ>ADJ-RE-L
An increase of '1' will decrease the margin on the front by 0.1 mm.
3) Record the new setting on the service label.
- ADJ-RE-L
13.6.2 Adjusting the Horizontal Registration When
Replacing the Duplex Unit
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N /
/ iR4570N / iR2230 / / / iR3530 /
1) Make double-sided small- and large-size copies, and check to make sure
that the front margin is 2.5 +/-2.0 mm. A sheet is large-size if its length in
feed direction is longer than A4/LTR.
(-) (+)
0
2
4
6
8
10
2.5 ±2.0 mm
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Chapter 13
0007-4924
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