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4) Copy lamp unit installation (Mirror base A
positioning)
This adjustment must be performed in the following cases:
• When the mirror base drive wire is replaced.
• When the mirror base A or B is replaced.
• When any part in the dark box is replaced.
When installing the mirror base, reverse the removal procedure of
(2)-A.
1 Put the mirror base A in the copier. Pass the mirror base drive
wires in the front frame side and the rear frame side through the
clearance between the mirror base A and the mirror base wire
fixing plate. Do not tighten the mirror base A wire fixing screw at
that time.
2 Bring the mirror base B into contact with the positioning plate, put
a flat jig (such as a scale edge) onto the right surface of the optical
base plate (paper feed side), press the projection of the copy lamp
unit onto the jig and fix it with two screws.
(Note) When tightening the copy lamp unit fixing screws, be sure to
press the projection onto the scale.
5) No. 4/5 mirror unit (mirror base C) replacement
A. No. 4/5 mirror removal
1 Remove the OR guide L and R, the remove the table glass.
2 Remove the dark box cover upper.
3 Remove the right cabinet.
4 Remember the positions of the lens drive shaft attachment plate
(in the directions of A and B) (Inscribe a line).
* (IMPORTANT) This is to prevent against defective focusing.
(Measurable with a scale.)
Horizontal scales
Projections
Inscribed
line
A
A
B
B
6 – 11