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(3) Check to confirm the lens value specified on the lens value
label.
(4) Insert a screwdriver into hole (P) in the right rear side (paper
feed side) of the optical base plate, and adjust the adjustment
screw. The scale on the zoom base at section Q in the figure
below determines the position of the No. 4/5 mirror corre-
sponding to the lens value.
<Example> When the lens value is +1.2, loosen the adjustment
screw and adjust so that the arrow section of the No.
4/5 mirror drive holder points to the zoom base scale at
+1.2.
Turning the adjustment screw clockwise moves the No.
4/5 mirror drive holer arrow section in the (–) direction,
and turning it counterclockwise moves the arrow sec-
tion in the (+) direction.
C. Vertical copy magnification ratio adjustment
Be sure to check that mirror bases A, B and C are in parallel and
that the focus is proper before executing this adjustment.
This adjustment must be performed in the following cases.
•
When the lens home position sensor (LHPS) is replaced or its
installation position is changed.
•
When the lens is replaced.
•
When the mirror base is replaced or its installing position is
changed.
•
When the main PWB is replaced.
•
When the EEPROM inside the main PWB is replaced.
(When a 100mm scale is used as the original.)
Paper feed direction
mm
10
20
100
1/2mm
mm
10
20
100
1/2mm
Reference
Comparison point
No. 4/5 mirror drive
holder arrow section
Zoom
base
(-) direction (+) direction
<Procedure>
(1) Put a scale on the original table as shown in the figure below.
Scale
(2) Make a normal copy (100%) on an A4 (11" ×8
(3) Compare the scale image length and the scale length.
JAPAN
110
120
130
140
JAPAN
110
120
130
140
110
7 – 5
No.4/5 sdjustment
screw
(shaded portion)
Q
One scale = 1mm
A4 (11" x 8½")
paper
⁄
1
") paper.
2
Original scale
HARDDENCD
STAINLESS
150
Shizuoka
HARDDENCD
STAINLESS
150
Shizuoka
Copy
P
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