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CHAPTER 6 TROUBLESHOOTING
6-33
I-13
Image distortion
Possible cause
Step
Check
Result
Remedy
Laser unit
installation
1
Is the laser unit secured to the
frame incorrectly?
(Check if there is 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
scanner motor defective?
Yes
Replace the laser unit.
Scanner
connection
failure
3
Is the scanner harness
connected properly?
(Check if it is coming loose.)
No
Connect the harness correctly.
I-14
Faint print
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print o Print out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Print out test print out test print out test Print out test print oPrint out test print o
Possible cause
Step
Check
Result
Remedy
Printer
installation
1
Is the printer placed
horizontally?
No
Place the printer on a flat
surface.
Toner cartridge
2
Does the problem happened
immediately after replacing the
toner cartridge with a new
one?
Yes
Remove and carefully shake the
toner cartridge horizontally.
Scanner window
dirty
3
Is the scanner window dirty?
Yes
Clean the scanner window with
a soft dry cloth.
Laser unit failure
4
Is the problem solved by
replacing the laser unit?
Yes
Replace the laser 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 ...