Panasonic FP-7742 / FP-7750 (serv.man2) Service Manual ▷ View online
4-32
2)
Replacement of the DFP roller
•
Conduct procedure 1 and 2.
•
Peel off the paper feed pad and replace
it.
5
(1)Remove the touch rings (x 2).
(2)Remove the bearing.
(3)Remove the roller shaft.
(4)Remove the DFP roller.
Note: When re-installing the DFP roller,
marked position is front side.
•
Conduct procedure 1.
(1)Remove the screws (x 2).
(2)Remove the DFP roller block.
6
7
1
2
1
4
1
Preventive
Maintenance
4-33
8
5
4 7 3 1 2
(7) Main body
Part name
1 Corona cleaner
120K
2 Transfer wire
120K
3 Separation wire
120K
4 Ozone filter
240K
5 Ozone filters
240K
6 Dust collecting filter
240K
(Main body)
7 Transfer chager
360K
8 Discharge lamp
240K
Item
Cycle
6
4-34
1)
Replacement of the charger wire/wire cleaner felt
(1)Open the front cover.
(2)Turn the transport lever and lower the
transport unit.
(3)Press down the transfer charger and draw
it toward you.
1
2
3
•
Remove the transfer charger.
(1)Remove the paper guide.
(2)Remove the charger cover.
(3)Replace the transfer wire cleaner felt.
Note: When the transfer charger is installing,
slide the wire cleaner felt to rear side
until it stops.
2
•
Replace the transfer charger wire and the
separation charger wire with new one.
(1)Remove the charger wire spring.
(2)Unfasten the charger wire.
3
1
1
2
2
1
3
Preventive
Maintenance
4-35
3
4
2
(Rear side)
2)
Remove the suction fan and the ozone filter to replace them with new ones.
(1)Remove the rear cover.
(2)Replace the ozone filter.
4
(Left side)
4)
Replacement of the discharge lamp.
(1)Open the front cover.
(2)Turn the toner hopper 180
°
.
(3)Remove the 1 screw.
(4)Disconnect the harness.
(5)Remove the lamp holder.
(6)Replace the discharge lamp (Filter and 3
screws).
6
3)
Replacement of the dust collecting filter
•
Remove the copier rear cover.
(1)Remove the filter cover.
(2)Remove the dust collecting filter
and replace it.
5
2
1
(3)Replace the filters.
•
Open the front cover.
•
Remove the exit cover. (2 screws, more
if sorter-equipped).
•
Remove the filter holder (1 screw).
•
Replace the filters.
•
Re-assemble in the reverse.
5
1
5
3
Ozone filters
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