[9] ADJUSTMENTS
1. Optical section
A. Adjustments list
Classification
No.
Adjustment content
Adjustment value/
Standard value
Necessary
special tool
Ref.
page
Parts installation
position
(1)
Mirror
a
No. 4/5 mirror unit right angle adjustment
—
—
9-4
b
No. 4/5 mirror unit drive cam position adjustment
—
—
9-5
Copy picture
quality
(2)
Image distortion
adjustment
a
Horizontal image distortion adjustment
—
—
9-5
b
Vertical image distortion adjustment
—
9-8
(3)
Copy image center
adjustment
0
±
2.0 mm
—
9-9
(4)
Focus adjustment
*
—
9-10
(5)
Copy magnification
ratio adjustment
a
Vertical copy magnification ratio adjustment
100
±
1.0%
—
9-11
b
Horizontal copy magnification ratio adjustment
100
±
1.0%
—
9-12
(6)
Uniformity adjustment
—
—
9-14
(7)
Image loss, void area
adjustment
a
Copy image position adjustment
—
—
9-14
b
Lead edge void area adjustment
1
∼
4
—
9-17
Rear edge void area adjustment
4 mm or less
—
9-17
*
For details, refer to the "Ref. page."
B. Notes and precautions
Be sure to follow the following precautions when performing adjust-
ments.
1) Observe the sequence of procedures shown in the flowchart
below.
2) Adjustments can be started midway in the flowchart only if all the
previous items have been properly adjusted.
3) If the content of an adjustment item in the flowchart is changed, all
the following items must ge adjusted accordingly.
4) "Sim" in the flowchart stands for "Simulation."
*
Lens display value and simulation input value
(1)-a
(1)-b
(3)
(4)
1
START
Adjust No. 4/5 mirror unit
inclination to zero.
Check the lens No.
Obtain the lens reference
position set value from the
lens No.table.
Execute Sim 48-1 to set
the lens reference position
set value.
Set to the normal copy
state in the normal copy
mode and set thelens unit
to the normal position.
Then fix No. 4/5 mirror
drive camposition to the
specified position.
Temporarily fix the lens
center position adjustment
lens holder atthe center.
Temporarily fix No. 4/5
mirror to the center.
Lens No.
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
–1
Sim48-1
36
38
40
41
43
45
47
48
50
52
53
55
57
59
60
62
64
65
67
69
9 – 1
www.freeservicemanuals.info
1/11/16
Published in Heiloo, Holland.
