Disassembly And Assembly; High Voltage Section; B. Drum Replacement - Sharp AR-168S Service Manual

[8] DISASSEMBLY AND ASSEMBLY

Before disassembly, be sure to disconnect the power cord for
safety.
1. Do not disconnect or connect the connector and the har-
ness during the machine is powered. Especially be careful
not to disconnect or connect the harness between the MCU
PWB and the LSU (MCU PWB: CN20) during the machine is
powered. (If it is disconnected or connected during the
machine is powered, the IC inside the LSU will be
destroyed.)
2. To disconnect the harness after turning on the power, be
sure to turn off the power and wait for at least 10 sec before
disconnection. (Note that a voltage still remains immedi-
ately after turning off the power.)
The disassembly and assembly procedures are described for the fol-
lowing sections:

1. High voltage section

2. Operation panel section
3. Optical section
4. Fusing section
5. Tray paper feed/transport section
6. Manual paper feed section
7. Rear frame section
8. Power section
9. SPF section
10. Duplex motor section
11. Reverse roller section
12. RSPF section
1. High voltage section
A. List
No. Part name Ref.
1 Drum
2 Transfer charger unit
3 Charger wire

B. Drum replacement

1) Remove the drum cover. (4 Lock Tabs)
AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 1
2) Remove the drum fixing plate and the photoconductor drum.
(Note) Dispose the drum fixing plate which was removed.
C
(2)
3) Check the cleaning blade and the red felt for no damage.
• If there is any damage, execute all procedures from item 5) and
later.
• If there is no damage, execute the procedure of item 12).
4) Remove the main charger.
(Cleaning the screen grid and the sawteeth.)
(3)