CHAPTER 6 TROUBLESHOOTING
6-31
I-9
White vertical streaks
Possible cause
Step
Check
Result
Remedy
Transfer failure
1
Is the transfer roller scratched?
Yes
Replace the drum unit.
Condensation
2
Has condensation occurred
inside the printer?
Yes
Try to print several pages or
leave the printer 2 hours to allow
it to reach room temperature.
I-10
White horizontal stripes
Possible cause
Step
Check
Result
Remedy
Ground
contacts
Developing bias
contact failure
1
Are the developing bias
contacts between the printer
body and toner cartridge dirty?
Yes
Clean the electrodes
at both sides.
➃
User Check
(1) Try to wipe the scanner window with a soft cloth.
(2) The toner cartridge may be damaged. Install a new toner cartridge.
(3) Check the printer’s environment. High temperature and high humidity conditions
can cause this problem.
(4) Damp (wet) paper might be used. Try to change to freshly unpacked paper.
User Check
(1) Check the paper used meets the recommended paper specifications. A rough
surfaced paper, damp paper or thick media can cause the problem.
(2) Check that the appropriate media type is selected in the printer driver.
(3) The problem may disappear by itself. Try printing multiple pages to clear this
problem especially if the printer has not been used for a long time.
(4) The drum unit may be damaged. Install a new drum unit.
Summary of Contents for HL-1030
Page 51: ...CHAPTER 3 THEORY OF OPERATION 3 9 Fig 3 8 ...
Page 53: ...CHAPTER 3 THEORY OF OPERATION 3 11 Two 32 Mbits ROMs x 16 bit are fitted Fig 3 11 HL 1270N ...
Page 122: ...CHAPTER 5 PERIODIC MAINTENANCE 5 8 ...
Page 198: ...CODE UK4352000 B512040CIR 1 2 A 20 NAME Appendix 11 Main PCB Circuit Diagram HL 1030 1240 1 2 ...
Page 199: ...Appendix 12 Main PCB Circuit Diagram HL 1030 1240 2 2 CODE UK4352000 B512040CIR 2 2 A 21 NAME ...
Page 202: ...CODE UK4361000 B512049CIR A 24 NAME Appendix 15 Main PCB Circuit Diagram HL 1250 1270N 3 5 ...
Page 205: ...Appendix 18A Engine PCB Circuit Diagram OLD CODE UK4444000 B512059CIR A 27 NAME ...
Page 206: ...Appendix 18B Engine PCB Circuit Diagram NEW CODE UK4444000 B512059CIR A 28 NAME ...
Page 207: ...Appendix 19 Network Board Circuit Diagram HL 1270N CODE LJ8107000 B512058CIR A 29 NAME ...
Page 218: ...INDEX vi ...