4. Optical system
4-1. Copy lamp replacement
1
Open the body up. Release the lock lever of the manual paper
feed unit and remove the manual paper feed unit.
2
Remove the fixing screws (2 pcs.) in the right upper cabinet, and
remove the right upper cabinet.
3
Remove the fixing screws (4 pcs.) of the glass holder, and remove
the glass holder.
4
Remove the table glass.
5
While pushing the copy lamp electrode in the rear frame, remove
the copy lamp.
For assembly, reverse the disassembly procedure.
Note: Be careful to the direction of the copy lamp installation.
4-2. Copy lamp unit replacement
1
Remove the manual paper feed unit, the right upper cabinet, the
glass holder, the table glass, and the operation panel.
2
Move the copy lamp unit to the frame notch (refer to the figure).
3
Remove the terminal section of the copy lamp lead wire. (One
screw and insertion terminal)
4
Loosen the fixing screw of the front and the rear frame wire, fixing
plate and remove the wire from the copy lamp unit.
5
Slide the whole unit forward, and remove the rear frame side
upwards.
For assembly, reverse the disassembly procedures.
Note: When the copy lamp unit is removed, the position adjustment
must be required when attaching again. Refer to the adjust-
ment item for the work.
4-3. Mirror base drive wire replacement
<Removal>
1
Remove the manual paper feed unit, the right upper cabinet, the
glass holder, the table glass and the operation panel.
2
Remove the fixing screws (2 pcs.) of the left upper cabinet, and
slide to the rear frame side to remove the cabinet.
3
Loosen the fixing screw of the copy lamp unit wire fixing plate, and
remove the wire from the unit.
4
Remove the tension spring (
7
in the figure) of the mirror base
drive wire in the paper exit side from the hook section.
5
Slightly shift the mirror base to the paper feed side, and remove
the terminal
1
of the mirror base drive wire.
6
Remove the wire fixing screw of the drive pulley.
<Installation>
1
Set the mirror base to the positioning plate position.
2
Set the terminal side of the mirror base drive wire on the hook
section
1
, turn the mirror base pulley
2
outside to wind the wire
around the drive pulley from the above.
3
Wind the wire 8 turns from the outside to the inside of the drive
pulley, and put the 7th turn into the groove, and fix it with a screw
temporarily.
4
Pass the wire under the mirror base and wind around the paper
exit pulley (the larger one).
5
Pass the wire to the inside of the mirror base pulley, and pass
through the paper exit pulley (the smaller one), then fix the tension
spring to the hook section
7
.
6
Check that the mirror base is in contact with the positioning plate,
and tighten the wire fixing screw of the drive pulley.
Wire fixing screw
Wire fixing screw
6 – 9
