CHAPTER IV -14
I-15
Black spots
Possible cause
Step
Check
Result
Remedy
Drum unit
1
Are the spots at 94mm
intervals?
The problem is not solved after
printing a few pages.
Yes
If toner remains stuck, wipe it
off gently with a cotton swab.
Replace the drum unit if the
OPC drum is scratched or
deteriorated (exposed).
(Refer to the following note.)
Fixing unit
2
Are the spots at 63mm
intervals?
And the problem is not solved
after printing a few pages.
Yes
Check and clean the heat roller
with a cloth dampened with
alcohol.
Replace the fixing unit.
SR PCB
3
Is the problem solved after the
SR PCB replaced?
Yes
Replace the SR PCB.
Note:
Clean the drum unit as follows:
(1) Place the printing samples in front of the process unit, and find the exact
portion of image defect.
Fig. 4.2
(2) Turn the drum gear by finger while looking at the surface of the OPC drum.
Fig. 4.3
Position of smudge on
the drum
94mm interval
Summary of Contents for HL HL-1060
Page 1: ...SERVICE MANUAL MODEL HL 1060 R LASER PRINTER ...
Page 24: ...CHAPTER II 8 1 3 5 DRAM Four 4Mbit DRAM x 8bit are used as the printer memory Fig 2 7 ...
Page 28: ...CHAPTER II 12 1 3 11 Engine I O Fig 2 13 shows the engine interface circuit Fig 2 13 ...
Page 96: ...Appendix 3 Main PCB Circuit Diagram 1 4 CODE UK3400000 B48K246CIR NAME V 3 ...
Page 97: ...Appendix 4 Main PCB Circuit Diagram 2 4 CODE UK3400000 B48K246CIR NAME V 4 ...
Page 98: ...Appendix 5 Main PCB Circuit Diagram 3 4 CODE UK3400000 B48K246CIR NAME V 5 ...
Page 99: ...Appendix 6 Main PCB Circuit Diagram 4 4 CODE UK3400000 B48K246CIR NAME V 6 ...
Page 100: ...Appendix 7 Driver PCB Circuit Diagram CODE UK3634000 B48K280CIR NAME V 7 ...
Page 105: ...Appendix 12 SR PCB Circuit Diagram CODE UK3653000 B48K284CIR NAME V 12 ...
