IV-12
I-11
Poor fixing
Possible cause
Step
Check
Result
Remedy
Printing paper
1
Is thick paper more than 42lb
weight in use?
Yes
Instruct the user to use paper
of the recommended weight
and thickness.
Toner sensing
failure
2
Is the problem solved by
replacing the drum unit or the
toner cartridge?
(When printing is faint.)
Yes
Toner is empty.
The toner sensing is defective,
clean the toner sensor.
If the wiper in the toner
cartridge is broken, replace the
toner cartridge with a new one.
Thermistor
failure
3
Is the thermistor fitted
correctly?
No
Fit the thermistor correctly.
Low-voltage
power supply
PCB failure
4
Is the problem solved by
replacing the low-voltage
power supply PCB?
Yes
Replace the low-voltage power
supply PCB.
I-12
Image distortion
Possible cause
Step
Check
Result
Remedy
Scanner
1
Is the scanner unit secured to
the frame incorrectly?
Is there any play?
Yes
Secure the unit correctly and
tighten the screws.
Scanner LD
emission failure
Scanner motor
rotation failure
2
Is the laser diode or the laser
scanner motor defective?
Yes
Replace the scanner unit.
Scanner
connection
failure
3
Is the scanner harness
connected properly?
Is it coming loose?
Yes
Connect the harness correctly.
Содержание HL-1020
Страница 1: ......
Страница 36: ...II 20 Fig 2 22 shows the CDCC interface circuit Fig 2 22 HL 1050 ...
Страница 37: ...II 21 1 3 10 Engine I O Fig 2 23 shows the engine interface circuit Fig 2 23 HL 820 1020 1040 ...
Страница 38: ...II 22 Fig 2 24 shows the engine interface circuit Fig 2 24 HL 1050 ...
Страница 67: ...III 18 4 PACKING Fig 3 32 Documents Accessory carton Pad Pad Printer Bag Carton ...
Страница 87: ...IV 20 3 4 Location of Feed Roller Shaft and Grounding Contacts Fig 4 7 Feed shaft roller For feed roller ...
Страница 101: ...CODE UK4007000 B48K312CIR NAME V 5 Appendix 5 Main PCB Circuit Diagram HL 820 1020 1040 1 2 ...
Страница 102: ...Appendix 6 Main PCB Circuit Diagram HL 820 1020 1040 2 2 CODE UK4007000 B48K312CIR NAME A 6 ...
Страница 103: ...Appendix 7 Main PCB Circuit Diagram HL 1050 1 5 CODE UK4041000 B512001CIR NAME A 7 ...
Страница 104: ...Appendix 8 Main PCB Circuit Diagram HL 1050 2 5 CODE UK4041000 B512001CIR NAME A 8 ...
Страница 105: ...Appendix 9 Main PCB Circuit Diagram HL 1050 3 5 CODE UK4041000 B512001CIR NAME A 9 ...
Страница 106: ...Appendix 10 Main PCB Circuit Diagram HL 1050 4 5 CODE UK4041000 B512001CIR NAME A 10 ...
Страница 107: ...Appendix 11 Main PCB Circuit Diagram HL 1050 5 5 CODE UK4041000 B512001CIR NAME A 11 ...
Страница 108: ...Appendix 12 Panel Sensor PCB Circuit Diagram CODE UK4010000 B48K303CIR NAME A 12 ...
Страница 117: ...Apr 98 84U005BE0 PARTS REFERENCE LIST MODEL HL 820 1020 1040 1050 R LASER PRINTER ...
Страница 122: ...1 1 1 MODEL HL 1050 84U 861 101 103 104 84U 862 106 6 4 5 MAIN PCB HL 1050 OTHERS ISRAEL 3 ...
Страница 133: ...R Lower Tray Unit for HL 2400C Color Laser Printer PARTS REFERENCE LIST MODEL LT 24CL Feb 1999 54S003BE0 ...
Страница 135: ...CONTENTS LOWER TRAY UNIT List 1 Drawing 2 ...
Страница 137: ... 2 GENERAL DRAWING MODEL LT 24CL 54S X06 4 3 1 6 5 2 7 ...
Страница 138: ...R Lower Tray Unit for HL 2400C Color Laser Printer SERVICE MANUAL MODEL LT 24CL Feb 1999 54S004BE0 ...
Страница 214: ......
Страница 296: ...USER S GUIDE A 12 HP LaserJet IIP 6P EPSON FX 850 IBM Propritner XL EPSON FX 850 ...