![](/images/new-backgrounds/1125774/125774163x1.webp)
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
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.
(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 +
Enter the input value and press the print switch. The value is stored and the ready lamp lights up.
Eg1: Copy A, of
which length 10 20 90 100 110 is shorter
than original
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| Scale |
10 | 20 | 30 40 | 50 | 60 | 70 | 80 | 90 | 50 | 100 110 120130 140 |
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| Space | |
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| Blank paper |
Scale |
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10 | 20 | 90 | 100 | 110 |
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(Original) |
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Eg2: Copy B, of
which length 10 20 90 100 110 is longer
than original
(3)Cancel simulation
Note: Input correction can be made in the range of 1 – 99 (simulation set range).
7 – 8