CHAPTER 6 TROUBLESHOOTING
6-47
Factory inspection mode
The factory inspection mode is used to check if the sensors in the printer are functioning
correctly. In the process of this inspection, the LEDs and the control panel button are also
checked.
On entering this mode, the LEDs show the status of the respective sensors as shown in the
figure below;
Toner sensor
Button unpressed
Rear registration sensor
Front registration sensor
Upper paper cassette sensor
Drum
Ready
Alarm
Paper
Toner
Data
Fig. 6-12
Toner sensor
ON (The toner cartridge is installed.)
Drum LED ON
OFF (No toner cartridge is installed.)
Drum LED OFF
Rear registration
ON (Paper is detected.)
Ready LED ON
sensor
OFF (No paper is detected.)
Ready LED OFF
Front registration
ON (Paper is detected.)
Alarm LED ON
sensor
OFF (No paper is detected.)
Alarm LED OFF
Upper paper cassette
ON (No paper cassette is installed.)
Data LED ON
sensor (HL-1250 only)
OFF (The paper cassette is installed.)
Data LED OFF
For checking more sensors, press the panel button. The LEDs show the status of the
respective sensors as shown in the figure below.
Button pressed
Paper eject sensor
Cover sensor
Lower paper cassette registration sensor
Drum
Ready
Alarm
Paper
Toner
Data
Fig. 6-13
(HL-1250 only)
(HL-1250 only)
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 ...