IV-1
CHAPTER IV
MAINTENANCE AND TROUBLESHOOTING
1.
INTRODUCTION
1.1
Initial Check
(1)
Operating environment
Check if :
• The source voltage stays within ±10% from the rated voltage shown on the rating
plate.
• The printer is installed on a solid, level surface.
• The room temperature is maintained between 10°C and 32.5°C. The relative
humidity is maintained between 20% and 80%.
• The printer is not located in a dusty place.
• The printer is not exposed to ammonia fumes or other harmful gases.
• The printer is not located in a hot or humid area (such as near water or a
humidifier).
• The printer is not exposed to direct sunlight.
• The room is well-ventilated.
• The printer is not placed where the ventilation hole of the printer is blocked.
(2)
Print paper
Check if :
• A recommended type of print paper is being used. [If the paper is too thick or too
thin, or tends to curl, paper jams or paper feed problems may occur, or printed
images may be blurred.]
• The print paper is damped. [If so, use fresh paper, and check whether the print
quality improves or not.]
• The print paper is short-grained paper or acid paper. [If so, print quality problems
may occur. For further information, refer to paper specifications in Chapter II.]
(3)
Consumable parts
Check if :
• The Toner lamp is not lit on the printer control panel when a toner cartridge is
installed in the printer. [If the lamp is lit, replace the cartridge with a new one. If
blank spots occur on printouts, take out the drum unit and slowly rock it to
redistribute the toner evenly.]
(4)
Others
Condensation:
When the printer is moved from a cold room into a warm room in cold weather,
condensation may occur inside the printer, causing various problems as listed
below:
• Condensation on the optical surfaces such as the scanning mirror, lenses, the
reflection mirror and the protection glass may cause the print image to be light.
• If the photosensitive drum is cold, the electrical resistance of the photosensitive
layer is increased, making it impossible to obtain the correct contrast when
printing.
Summary of Contents for HL-P2000
Page 1: ......
Page 27: ...II 8 1 3 8 Engine I O Fig 2 10 shows the engine interface circuit Fig 2 10 ...
Page 69: ...III 28 4 PACKING Fig 3 48 Documents Accessory carton Pad Pad Printer Bag Carton Drum Unit ...
Page 115: ...Appendix 5 Main PCB Circuitry Diagram 1 3 CODE UK3981000 B512018 CIR 1 3 NAME A 6 ...
Page 116: ...Appendix 6 Main PCB Circuitry Diagram 2 3 CODE UK3981000 B512018 CIR 2 3 NAME A 7 ...
Page 117: ...Appendix 7 Main PCB Circuitry Diagram 3 3 CODE UK3981000 B512018 CIR 3 3 NAME A 8 ...
Page 118: ...Appendix 8 Panel Sensor PCB Circuit Diagram CODE UK4010000 B48K303CIR NAME A 9 ...
Page 119: ...Appendix 9 Scanner Panel PCB Circuit Diagram CODE UK3982000 B512019 CIR NAME A 10 ...
Page 120: ...Appendix 10 Scanner Sensor PCB Circuit Diagram A 11 B512020 CIR CODE UK3983000 NAME ...
Page 170: ......
Page 249: ...APPENDIX A 9 HP LaserJet IIP EPSON FX 850 IBM Propritner XL EPSON FX 850 ...
Page 260: ...Aug 98 84U007BE0 PARTS REFERENCE LIST MODEL MFC P2000 HL P2000 R LASER PRINTER ...