VI
- 8
1
Yes
EP-ED cartridge
During a printing, open the toner cartridge lid
in the printer and pull out the EP-ED cartridge.
Open the drum shutter of the EP-ED cartridge
and check the toner image on the drum.
Are there vertical stripes on the drum?
Replace the EP-ED cartridge.
I-8
Black vertical streaks or Blurred vertical line
Possible cause
Step
Check
Result
Remedy
Fixing unit
damaged
Replace the fixing unit.
No
I-7
Possible cause
Step
Check
Result
Remedy
Drum or charging
roller failure
1
Do stripes appears at 95 mm or 38 mm
interval?
Yes
Replace the EP-ED cartridge.
Fixing unit
failure
2
Do stripes appears at 80 mm interval?
Yes
Replace the fixing unit.
Black and blurred horizontal stripes
I-10
1
Beam detection
error
-
I-9
Black and thin horizontal streaks
Possible cause
Step
Check
Result
Remedy
-
Replace the scanner unit or
the harness and, if the problem
is not resolved, replace the
main PCB assy.
Summary of Contents for 1660e - B/W Laser Printer
Page 1: ...MECHANICS ELECTRONICS SERVICE MANUAL LASER PRINTER ...
Page 109: ...Appendix 3 Main PCB Circuitry Diagram 1 7 CODE UK3787000 B48K294 295CIR 1 7 NAME A 3 ...
Page 110: ...Appendix 4 Main PCB Circuitry Diagram 2 7 CODE UK3787000 B48K294 295CIR 2 7 NAME A 4 ...
Page 111: ...Appendix 5 Main PCB Circuitry Diagram 3 7 CODE UK3787000 B48K294 295CIR 3 7 NAME A 5 ...
Page 112: ...Appendix 6 Main PCB Circuitry Diagram 4 7 CODE UK3787000 B48K294 295CIR 4 7 NAME A 6 ...
Page 113: ...Appendix 7 Main PCB Circuitry Diagram 5 7 CODE UK3787000 B48K294 295CIR 5 7 NAME A 7 ...
Page 114: ...Appendix 8 Main PCB Circuitry Diagram 6 7 CODE UK3787000 B48K294 295 CIR 6 7 NAME A 8 ...
Page 115: ...Appendix 9 Main PCB Circuitry Diagram 7 7 CODE UK3787000 B48K294 295CIR 7 7 NAME A 9 ...
Page 116: ...Appendix 10 Control Panel PCB Circuitry Diagram 1 1 A 10 CODE NAME UK2527000 B48K143CIR ...
Page 117: ...Appendix 11 Scanner LD PCB Circuitry Diagram 1 1 A 11 CODE NAME UK2674000 B48K165CIR ...