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2-23
Confidential
3.5.6 Toner cleaning
<Flow of toner cleaning>
(1) Toner remaining on the exposure drum which has not completely been transferred on to
the paper is pulled onto the drum cleaner with a lower potential and the drum is cleaned.
(2) After the above step, the potential of the drum cleaner is raised during printing, and such
attracted toner is returned to the exposure drum again. The returned toner is attracted to
the belt unit by lowering the potential of the transfer roller.
(3) The toner attracted to the belt unit is collected by the belt cleaner below the unit, and
stored in the waste toner box.
Fig. 2-24
Memo:
When the toner returns to the exposure drum from the drum cleaner, the develop roller is
separated from the exposure drum to prevent color mixture.
Drum cleaner
Paper
Belt
Develop roller
Exposure drum
Drum cleaner
Exposure
Develop roller
Drum
Belt
Transfer roller
Belt
Cleaning shaft
Waste toner box
Cleaning
Back-up
roller
roller
Belt cleaner
Paper
cleaner
drum
Summary of Contents for HL-3040CN
Page 10: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 33: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Page 61: ...2 27 Confidential Fig 2 27 Fuser center thermistor Fuser side thermistor Fuser unit Front ...
Page 63: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Page 149: ...Confidential CHAPTER 4 PERIODICAL MAINTENANCE ...
Page 171: ...Confidential CHAPTER 5 DISASSEMBLY AND ASSEMBLY ...
Page 336: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 342: ...6 5 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...
Page 352: ...Confidential CHAPTER 7 SERVICE FUNCTIONS ...
Page 375: ...7 21 Confidential Color registration adjustment chart Fig 7 7 ...
Page 379: ...7 25 Confidential LED test pattern M68_L Fig 7 9 ...
Page 381: ...7 27 Confidential Fig 7 10 ...
Page 383: ...7 29 Confidential Color test pattern Fig 7 11 MCYK Y C M K YCMK_ _A ...
Page 408: ...Confidential CHAPTER 8 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 411: ...8 2 Confidential High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 2 3 ...
Page 412: ...8 3 Confidential High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 3 3 ...
Page 413: ...8 4 Confidential High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 1 3 ...
Page 414: ...8 5 Confidential High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 2 3 ...
Page 415: ...8 6 Confidential High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 3 3 ...
Page 416: ...8 7 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 417: ...8 8 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 418: ...8 9 Confidential 2 WIRING DIAGRAM Wiring Diagram 1 2 ...
Page 419: ...8 10 Confidential Wiring Diagram 2 2 ...
Page 429: ...Confidential APPENDIX 3 SERIAL NUMBERING SYSTEM ...
Page 431: ...App 3 2 Confidential Serial number of the LED ASSY Print position Fig App 3 4 Serial number ...
Page 432: ...Confidential APPENDIX 4 SCREW CATALOGUE ...
Page 434: ...Confidential APPENDIX 5 REFERENCES ...
Page 436: ...Confidential APPENDIX 6 GLOSSARY ...