2-108
Confidential
4.7.4 Drum error
<User Check>
- Clean the corona wire of each drum unit for all four colors.
- Replace the drum unit with a new one and reset the drum counter.
4.7.5 Drum unit replacement
(Even though drum counter is reset, "Replace Drum" warning remains.)
Step
Cause
Remedy
1
Dirt on the GRID electrodes of
the drum unit
Clean the GRID electrodes of the main body
and the drum unit.
(Refer to
2
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Dirt on the GRID electrodes of
the drum unit
Clean the GRID electrodes of the main body
and the drum unit.
(Refer to
and
)
2
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for DCP-9020CDN
Page 47: ...2 8 Confidential 2 2 2 Scanning part Fig 2 4 ...
Page 89: ...2 50 Confidential Electrodes location of main body Fig 2 7 ...
Page 172: ...3 9 Confidential EM2 0 MOLYKOTE EM D110 2 0 mm dia ball EM2 0 Back cover ASSY Back cover ASSY ...
Page 345: ...5 7 Confidential Black and white scanning First side Front Fig 5 1 ...
Page 346: ...5 8 Confidential Black and white scanning Second side Back Fig 5 2 ...
Page 347: ...5 9 Confidential Color scanning First side Front Fig 5 3 ...
Page 348: ...5 10 Confidential Color scanning Second side Back Fig 5 4 ...
Page 384: ...5 46 Confidential LED test pattern M68_L Fig 5 17 ...
Page 429: ...App 3 8 Confidential When the following screen appears click Close to close the screen ...