Image Adjustments; Standards Of Image Position; Checking The Image Position; Adjusting Side Registration - Canon iR6570 series Service Manual

Chapter 13

13.2 Image Adjustments

13.2.1 Standards of Image Position

The image margin/non-image width of a print made in direct must be as
follows:
mage Leading Edge Margin
Left/Right Image Margin
2.5 1.5mm
0
2
4
6
8
10
Leading Edge Non-Image Width
Left/Right Non-Image Width
0
2
4
6
8
10

13.2.2 Checking the Image Position

Make prints using the following as the source of paper (10 prints each),
and check to see that the image margin and the non-image width are as
indicated:
- Each cassette
- Front deck (left, right)
- Manual feed tray
- Duplex feeding unit
- Side paper deck
If not as indicated, adjust the image position in the following order:
1. Adjusting the left/right image margin (registration)
2. Adjusting the image leading edge margin (registration)
3. Adjusting the left/right non-image width (CCD read start position)
4. Leading edge non-image width (scanner image leading edge position)

13.2.3 Adjusting Side Registration

13-18
0008-7917
1.5mm
4.0
1.0mm
F-13-17
F-13-18
1.5mm
4.0
1.0mm
F-13-19
2.5 1.5mm
F-13-20
0008-7918
0009-4593
<Cassette 3/4>
1) Press the release button to draw out the cassette 3/4.
2) Loosen the 2 fixing screws [1] on both sides of the cassette.
3) Move the cassette body frontward or backward to adjust.
Backward: The side registration value (left margin) is decreased.
Frontward: The side registration value (left margin) is increased.
[1]
4) Make sure that the side registration values (left margins) of a copy
made from the cassette 3/4 are L1 = 2.5±1.5mm respectively.
[1]
[1] Paper feed direction
5) Tighten back the 2 fixing screws [1] after the adjustment.
6) Put back the cassette 3/4 to the machine.
7) Perform the following service mode after the adjustment.
Cassette 3
[1]
[2]
[2]
F-13-21
image
F-13-22
[1]
F-13-23