2-25
Confidential
3.6.2 Exposure
Exposure is conducted by LED (Light Emitting Diode) arrays.
Four LED arrays for K, Y, M and C are mounted as an LED ASSY on the top cover unit of the
main unit. These four LED arrays do not emit different colors corresponding to toner colors,
and they are the same parts in terms of structure.
Fig. 2-22
On the PCB in the LED array, 4,992 LEDs, which correspond to the total number of the dots of
the 600-dpi print head, are arranged in a staggered pattern.
The lens array forms image on
the exposure drum using the light emitted from the LEDs. The surface potential on the
exposure drum, which is evenly charged, is lowered by exposure, and consequently image is
formed.
Fig. 2-23
Memo:
- The focus adjustment of the distance between the LED ASSY and exposure drum is
made by the lower rollers at the both ends of the LED ASSY, and a fixed distance is
maintained.
- Maximum print width is 207.44 mm = 4,900 dots.
LED ASSY
LED array
LED array
Lens array
Roller
Exposure drum
LED array
LED ASSY
Roller
Exposure drum
* Figure of the front view
* Figure of the side view
Summary of Contents for DCP-9010CN
Page 11: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 53: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Page 90: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Page 201: ...Confidential CHAPTER 4 PERIODICAL MAINTENANCE ...
Page 224: ...Confidential CHAPTER 5 DISASSEMBLY AND ASSEMBLY ...
Page 440: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 446: ...6 5 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...
Page 456: ...Confidential CHAPTER 7 SERVICE FUNCTIONS ...
Page 464: ...7 6 Confidential For color scanning Fig 7 2 ...
Page 487: ...7 29 Confidential Cover page sample Fig 7 13 End page sample Fig 7 14 ...
Page 492: ...7 34 Confidential Color registration adjustment chart Fig 7 16 ...
Page 496: ...7 38 Confidential LED test pattern M68_L Fig 7 18 ...
Page 498: ...7 40 Confidential Fig 7 19 ...
Page 500: ...7 42 Confidential Color test pattern Fig 7 20 MCYK Y C K M YCMK_ _A ...
Page 518: ...Confidential CHAPTER 8 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 521: ...Confidential 8 2 High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 2 3 ...
Page 522: ...Confidential 8 3 High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 3 3 ...
Page 523: ...Confidential 8 4 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 1 3 ...
Page 524: ...Confidential 8 5 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 2 3 ...
Page 525: ...Confidential 8 6 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 3 3 ...
Page 526: ...Confidential 8 7 Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 527: ...Confidential 8 8 Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 528: ...Confidential 8 9 NCU PCB Circuit Diagram USA Canada ...
Page 529: ...Confidential 8 10 NCU PCB Circuit Diagram Europe Asia Oceania China ...
Page 530: ...Confidential 8 11 NCU PCB Circuit Diagram South Africa Gulf ...
Page 531: ...Confidential 8 12 2 WIRING DIAGRAM Wiring Diagram 1 2 ...
Page 532: ...Confidential 8 13 Wiring Diagram 2 2 ...
Page 590: ...Confidential APPENDIX 3 SERIAL NUMBERING SYSTEM ...
Page 592: ...App 3 2 Confidential Serial number of the LED ASSY Print position Fig App 3 4 Serial number ...
Page 593: ...Confidential APPENDIX 4 SCREW CATALOGUE ...
Page 595: ...Confidential APPENDIX 5 REFERENCES ...
Page 597: ...Confidential APPENDIX 6 GLOSSARY ...