CHAPTER 6 TROUBLESHOOTING
6-39
I-22
Light rain
Possible cause
Step
Check
Result
Remedy
Drum unit failure
1
Is the problem solved after
replacing the drum unit?
Yes
Replace the drum unit.
High-voltage
power supply
PCB failure
2
Is the problem solved after
replacing the high-voltage
power supply PCB?
Yes
Replace the high-voltage power
supply PCB.
I-23
Ghost
Possible cause
Step
Check
Result
Remedy
Driver setting
1
Is thin paper such as 64g/m
2
used under the thick paper
mode?
Yes
1) Change the current mode to
the normal mode from the
driver setting.
2) Print 5 or 6 blank pages if this
problem occurs.
Drum unit failure
2
Is the problem solved after
replacing the drum unit?
Yes
Replace the drum unit.
High-voltage
power supply
PCB failure
3
Is the problem solved after
replacing the high-voltage
power supply PCB?
Yes
Replace the high-voltage power
supply PCB.
User Check
(1) Check the paper used meets the recommended paper specifications. Damp
paper, thick media or rough surfaced paper can cause the problem.
(2) Check the printer’s environment. High temperature and high humidity conditions
can cause the problem.
(3) Check that the appropriate media type is selected in the printer driver.
(4) Try installing a new drum unit.
Содержание HL-1240
Страница 1: ......
Страница 45: ...CHAPTER 3 THEORY OF OPERATION 3 7 Fig 3 6 ...
Страница 47: ...CHAPTER 3 THEORY OF OPERATION 3 9 1 3 3 DRAM A 16M bit DRAM x 16 bits is used as the RAM Fig 3 9 HL 1240 ...
Страница 48: ...CHAPTER 3 THEORY OF OPERATION 3 10 Two 16M bit DRAMs x 16 bits are used as the RAM Fig 3 10 HL 1250 ...
Страница 102: ...CHAPTER 4 DISASSEMBLY AND RE ASSEMBLY 4 38 ...
Страница 110: ...CHAPTER 5 PERIODIC MAINTENANCE 5 8 ...
Страница 176: ...CODE UK4352000 B512040CIR 1 2 A 18 NAME Appendix 10 Main PCB Circuit Diagram HL 1240 1 2 ...
Страница 177: ...Appendix 11 Main PCB Circuit Diagram HL 1240 2 2 CODE UK4352000 B512040CIR 2 2 A 19 NAME ...
Страница 178: ...Appendix 12 Main PCB Circuit Diagram HL 1250 1 5 CODE UK4361000 B512049CIR 1 5 A 20 NAME ...
Страница 179: ...Appendix 13 Main PCB Circuit Diagram HL 1250 2 5 CODE UK4361000 B512049CIR 2 5 A 21 NAME ...
Страница 180: ...CODE UK4361000 B512049CIR A 22 NAME Appendix 14 Main PCB Circuit Diagram HL 1250 3 5 ...
Страница 181: ...CODE UK4361000 B512049CIR 4 5 A 23 NAME Appendix 15 Main PCB Circuit Diagram HL 1250 4 5 ...
Страница 182: ...CODE UK4361000 B512049CIR 5 5 A 24 NAME Appendix 16 Main PCB Circuit Diagram HL 1250 5 5 ...
Страница 183: ...Appendix 17 Engine PCB Circuit Diagram CODE UK4444000 B512059CIR A 25 NAME ...
Страница 192: ...INDEX vi ...
Страница 203: ...6 COVER MODEL HL 1240 HL 1250 84U Z01 Z02 060 8 7 15 1 12 12 12 9 11 11 8 6 2 5 10 16 13 17 4 3 3 2 12 14 ...
Страница 210: ... 15 14 ADJUSTING TOOL PRT 402 TOOL NO TOOL NAME REMARK PRT 402 TORX SCREW DRIVER MODEL HL 1240 HL 1250 84U Z01 Z02 ...
Страница 237: ...CHAPTER 1 ABOUT THIS PRINTER 1 19 1 Select manual feed mode in the printer driver Windows 95 98 and Windows 3 1 ...
Страница 321: ...A 12 HP LaserJet IIP HP LaserJet 6P HL 1250 only ...
Страница 323: ...A 14 HP LaserJet IIP 6P EPSON FX 850 IBM Proprinter XL EPSON FX 850 ...