2-3
Confidential
■
Others
(1) Condensation
When the printer is moved from a cold place into a warm room, condensation may occur
inside the printer, causing various problems as listed below.
- Condensation on the surface of optical devices such as the scanner windows, lens,
reflecting mirror, and protection glass, etc, may cause light print image.
- If the exposure drum is cold, the electrical resistance of the photosensitive layer is
increased, making it impossible to obtain the correct contrast when printing.
- Condensation on the charge unit may cause corona charge leakage.
- Condensation on the plate and separation pad may cause paper feed problems.
If condensation has occurred, leave the printer for at least two hours to allow it to reach
room temperature.
If the drum unit is unpacked soon after it is moved from a cold place to a warm room,
condensation may occur inside the unit which may cause incorrect images. Instruct the
user to allow the unit to come to room temperature before unpacking it. This will take one
or two hours.
(2) Low temperature
The motor may not drive normally under the low temperature environment. This is due to
there being too much load to drive each unit.
In this case, the “
Low Temperature/Increase
room temperature to allow the machine to operate
” message will appear on the LCD.
Increase the room temperature when the above message is indicated.
■
Cleaning
Use a soft dry lint-free cloth.
WARNING
DO NOT
use flammable substances, any type of spray or any organic solvent/liquids
contains alcohol or ammonia to clean the inside or outside of the printer. Doing this may
cause a fire or electrical shock.
Summary of Contents for HL-4140CN
Page 19: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 29: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 145: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 169: ...3 21 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 296: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 311: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 336: ...5 23 Confidential Inter color position alignment adjustment chart Fig 5 8 ...
Page 343: ...5 30 Confidential Fig 5 11 ...
Page 345: ...5 32 Confidential Fig 5 12 First side Second side ...
Page 347: ...5 34 Confidential Color test pattern Fig 5 13 MCYK Y C K M YCMK_ _A ...
Page 354: ...5 41 Confidential Maintenance information Fig 5 14 ...
Page 382: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 384: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 385: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 386: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 387: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 388: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 389: ...6 6 Confidential 2 WIRING DIAGRAM Wiring Diagram ...
Page 390: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 424: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 428: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 432: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...