Canon DADF-AV1, Service Manual

Page: 75 / 115

Overview
Adjustment After Replacing the Parts
In case of removing the parts as shown below, adjust the following item.
Parts to replace Adjustment item Reference
Motor/Other roller Adjusting the Magnification “Adjusting the Magnification” on page 103
Adjustment
In case of removing this equipment and then re-installed, adjust it in order as shown below.
No. Adjustment item Reference
1 Adjusting the Height “Adjusting the Height” on page 70
2 Adjusting the Perpendicularity “Adjusting the Perpendicularity” on page
74
3 Adjusting the Reading Position “Adjusting the Reading Position” on page
78
4 Adjusting the Magnification “Adjusting the Magnification” on page 79
5 Adjusting the Image Position (Horizontal Scanning Direction) “Adjusting the Image Position (Main Scan-
ning Direction)” on page 80
6 Adjusting the Image Position (Leading Edge) “Adjusting the Image Position (Sub Scanning
Direction)” on page 81
7 Adjusting the White Level “Adjusting the White Level” on page 82
Preparation or Creation of Test Chart
Prepare a test chart. If there is no test chart, create a test chart.
Create a test chart that has a 10 mm smaller rectangle from the edge of A4 or LTR paper.
NOTE:
Be sure to write a character or mark to identify the printed image direction.
10 mm
10 mm
10 mm
10 mm
5. Adjustment
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