Canon imageRUNNER C1335 Series Service Manual page 206

4
Disassembly/Assembly > Original Exposure/Feed System > Removing the ADF Unit > ADF Unit
Adjustment of the leading edge margin of image at ADF reading (duplex/front
side)
1) Set a test chart on ADF, and give one sheet of copy.
2) Compare the leading edge registration of the test chart and the copy of the test chart.
Carry out the following process when adjustment is necessary.
3) Select the item in the service mode.
FEEDER > ADJUST >
DOCSTDUP
4) Input value, and adjust an image.
• When a copied image moves to the trailing edge: Increase value
• When a copied image moves to the leading edge: Decrease value
• Adjustment unit: 0.1 mm
< When a copied image moves to the rear >
Test chart
Copy of the test chart
A
Leading edge Trailing edge
of the feeding of the feeding
direction direction
5) Write the new changed value in the service label.
6) Exit the service mode.
CAUTION:
Confirm that the Degree of a Right Angle is correct after you finish this adjustment.
Adjust again from the Adjustment of the Degree of a Right Angle when the Degree of a
Right Angle is not correct.
4 Disassembly/Assembly > Original Exposure/Feed System > Removing the ADF Unit > ADF Unit
T-4-47
< When a copied image moves to the front >
Copy of the test chart
Test chart
A
Leading edge Trailing edge
of the feeding of the feeding
direction direction
F-4-116
Adjustment of the leading edge margin of image at ADF reading (duplex/back
side)
1) Set a test chart on ADF, and give one sheet of copy.
2) Compare the leading edge registration of the test chart and the copy of the test chart.
Carry out the following process when adjustment is necessary.
3) Select the item in the service mode.
FEEDER > ADJUST >
DOCST2
4) Input value, and adjust an image.
• When a copied image moves to the trailing edge: Increase value
• When a copied image moves to the leading edge: Decrease value
• Adjustment unit: 0.1 mm
< When a copied image moves to the rear >
Test chart
Copy of the test chart
A
Leading edge Trailing edge
of the feeding of the feeding
direction direction
5) Write the new changed value in the service label.
6) Exit the service mode.
CAUTION:
Confirm that the Degree of a Right Angle is correct after you finish this adjustment.
Adjust again from the Adjustment of the Degree of a Right Angle when the Degree of a
Right Angle is not correct.
4-56
T-4-48
< When a copied image moves to the front >
Copy of the test chart
Test chart
A
Leading edge Trailing edge
of the feeding of the feeding
direction direction
F-4-117
4-56