2-44
Confidential
■
Error code 4500
Printable pages set for the fuser unit has reached the upper limit. (Printing is not stopped.)
■
Error code 4700
The waste toner sensor detected that the waste toner box is almost full.
Error code 4800
After the waste toner sensor detected that the waste toner box was almost full, pages more
than the specified number have been printed.
<User Check>
- Replace the waste toner box.
Replace Parts
Fuser Unit
Step
Cause
Remedy
1
Main PCB failure if the error code
remains after replacing with a
new fuser unit and resetting the
fuser unit counter
Replace the main PCB ASSY.
Replace Parts
WT Box End Soon
Replace WT Box
Replace the Waste Toner Box inside the machine. To get to it, remove all the
Drums & Toners then remove the Belt Unit.
Step
Cause
Remedy
1
Dirt on the contact of waste toner
sensor in high-voltage power
supply PCB
Clean the contact in the high-voltage
power supply PCB.
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 ...