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Sharp 00ZSF1116/A1E Service Manual page 72

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E. Horizontal copy magnification ratio adjustment
a. This adjustment is performed to meet the displayed magnifica-
tion ratio with the actual one.
b. This adjustment must be performed in the following cases:
When the main PWB is replaced.
When the EEPROM in the main PWB is replaced.
When the mirror motor is replaced.
When self diag. U2 occurs.
The scanning speed of the mirror base is changed to adjust the
horizontal (paper transport direction) copy magnification ratio.
<Adjustment procedure>
(1) Put a scale on the original table as shown in the figure below,
and execute simulation 48-02. The machine starts warming up
and the ready lamp lights up. At the same time, the previously
set value ( 1 ∼ 99) is displayed. Under this state, make a nor-
mal copy and calculate the copy magnification ratio.
10 20 30 40 50 60 70 80 90 50 100 11 0 120130 14 0
Space
Scale
Blank paper
(2) Replace the displayed value with the copy magnification ratio
correction rate obtained in (1).
(Input value) = (Previously set value) / (Copy magnification
ratio correction rate [%]) ×10
(Example) When the previously set value is 25, the input
values of examples 1 and 2 are as follows:
Example 1: 35 = 25 + (1 × 10)
Example 2: 15 = 25 + (–1 × 10)
Enter the input value and press the print switch. The value
is stored and the ready lamp lights up.
Eg1:
Copy A, of
10
which length
is shorter
than original
Scale
10
(Original)
Eg2:
Copy B, of
10
which length
is longer
than original
(3) Cancel simulation 48-02.
Note: Input correction can be made in the range of 1 – 99
(simulation set range).
7 – 8
20
90
100
110
20
90
100
110
20
90
100
110

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