Disassembly And Assembly; High Voltage Section - Sharp AR-5012 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 harness
during the machine is powered. Especially be careful not to
disconnect or connect the harness between the MCU PWB
and the LSU (MCU PWB: CN119) 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 immediately
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
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)
2) Remove the drum fixing plate and the photoconductor drum.
3) Check the cleaning blade and the red felt for no damage.
4) Remove the main charger.
AR-5012 DISASSEMBLY AND ASSEMBLY 8 - 1
(Note) Dispose the drum fixing plate which was removed.
C
(2)
• If there is any damage, execute all procedures from item 5) and
later.
• If there is no damage, execute the procedure of item 12).
(Cleaning the screen grid and the sawteeth.)
(3)