CHAPTER IV -7
I-3
Completely blank
Possible cause
Step
Check
Result
Remedy
HV.GND
contacts
(Fig.4-5)
Developing bias
contact failure
1
Are the developing bias
contacts between the printer
body and drum unit dirty?
Yes
Clean the electrodes
at both sides.
i
Drum unit
2
Are the drum shaft and drum
electrode of the printer body
Yes
Clean the shaft and
the electrode.
c
connected correctly?
No
Check the connection
between the shaft and
the electrode.
c
Drum unit failure
3
Is the problem solved after the
drum unit is replaced?
Yes
Replace the drum
unit.
Scanner harness
connection failure
4
Is the scanner harness
connected securely?
Is there any play in the
connection?
Yes
Reconnect the
connector properly.
Main/Driver PCB
connection failure
5
Are printing signals being input
to the scanner?
Is the problem solved after the
main PCB or the driver PCB
replaced?
Yes
Replace the main
PCB or the driver
PCB.
Scanner unit
failure
6
Scanner interlock lever
damaged.
Yes
Replace the scanner
unit.
Scanner mirror is broken or
loose.
No
Replace the H.V.
power supply.
Содержание HL HL-1060
Страница 1: ...SERVICE MANUAL MODEL HL 1060 R LASER PRINTER ...
Страница 24: ...CHAPTER II 8 1 3 5 DRAM Four 4Mbit DRAM x 8bit are used as the printer memory Fig 2 7 ...
Страница 28: ...CHAPTER II 12 1 3 11 Engine I O Fig 2 13 shows the engine interface circuit Fig 2 13 ...
Страница 64: ...III 25 4 PACKING Fig 3 39 Documents Carton SF assy Dust cover Pad Pad PE sheet Bag Pad Pad Carton ...
Страница 96: ...Appendix 3 Main PCB Circuit Diagram 1 4 CODE UK3400000 B48K246CIR NAME V 3 ...
Страница 97: ...Appendix 4 Main PCB Circuit Diagram 2 4 CODE UK3400000 B48K246CIR NAME V 4 ...
Страница 98: ...Appendix 5 Main PCB Circuit Diagram 3 4 CODE UK3400000 B48K246CIR NAME V 5 ...
Страница 99: ...Appendix 6 Main PCB Circuit Diagram 4 4 CODE UK3400000 B48K246CIR NAME V 6 ...
Страница 100: ...Appendix 7 Driver PCB Circuit Diagram CODE UK3634000 B48K280CIR NAME V 7 ...
Страница 101: ...Appendix 8 Switch Panel Solenoid Bin Relay PCB Circuit Diagram CODE UK3635000 281 282 283 CIR NAME V 8 ...
Страница 105: ...Appendix 12 SR PCB Circuit Diagram CODE UK3653000 B48K284CIR NAME V 12 ...