CHAPTER 4 LASER EXPOSURE SYSTEM
COPYRIGHT© 2002 CANON INC.
2000
CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
4 - 6
3 Laser Driver Circuit
3.1 Laser Control
The laser driver circuit is used to drive the semiconductor laser according to the video
signals from the image processor PCB.
The following items of control relate to the laser driver circuit:
1. Laser emission control
2. Laser power auto control (APC control)
The signals have the following functions:
[1] laser emission signal. It is generated based on the BD input signal; laser light is emit-
ted when it goes ‘0’.
[2] image formation enable signal. It is used to control the output of the video signals;
emission of laser light is enabled when it goes ‘0’.
[3] video signal: It is a low-amplitude (for noise suppression) drive signal.
[4] video out signal. It is a low voltage drive signal converted from a video signal. When
the mage formation enable signal is ‘0’, it turns on/off the laser light.
[5] registration signal. It generates the TOP signal when paper reaches the registration
sensor (PS102) mounted to the front of the registration roller.
[6] The laser intensify is monitored when laser light is emitted, and a level suited to the
intensity of the light is fed back to the laser drive circuit.
[7] The output is controlled so that the level arriving as feedback and the reference level
from the DC controller are identical.
[8] laser intensity switch signal. It is used to switch the laser intensity between laser start-
up and printing. During printing, it is fixed to ‘0’.
Содержание iR1600 Series
Страница 24: ......
Страница 26: ......
Страница 96: ......
Страница 110: ......
Страница 112: ......
Страница 144: ......
Страница 146: ......
Страница 158: ......
Страница 160: ......
Страница 182: ......
Страница 216: ......
Страница 217: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 CHAPTER 7 FIXING SYSTEM...
Страница 218: ......
Страница 248: ......
Страница 250: ......
Страница 283: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 CHAPTER 9 CASSETTE UNIT...
Страница 284: ......
Страница 298: ......
Страница 299: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 CHAPTER 10 INNER 2 WAY TRAY...
Страница 300: ......
Страница 312: ......
Страница 313: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 CHAPTER 11 INSTALLATION...
Страница 314: ......
Страница 366: ......
Страница 368: ......
Страница 377: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 CHAPTER 13 TROUBLESHOOTING...
Страница 378: ......
Страница 604: ......
Страница 605: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 CHAPTER 14 VERSION UP...
Страница 606: ......
Страница 647: ...COPYRIGHT 2002 CANON INC 2001 2001 CANON iR1600 iR2000 iR1610 iR2010 SERIES REV 0 MAR 2002 APPENDIX...
Страница 648: ......
Страница 650: ......
Страница 652: ......
Страница 656: ......
Страница 660: ......
Страница 661: ...FAX BOARD REVISION 0 COPYRIGHT 2002 CANON INC 2CANON FAX BOARD REV 0 MAR 2002 PRINTED IN JAPAN IMPRIME AU JAPON...
Страница 665: ...COPYRIGHT 2002 CANON INC CANON FAX BOARD REV 0 MAR 2002 CHAPTER 1 INTRODUCTION...
Страница 666: ......
Страница 671: ...COPYRIGHT 2002 CANON INC CANON FAX BOARD REV 0 MAR 2002 CHAPTER 2 BASIC OPERATION...
Страница 672: ......
Страница 679: ...COPYRIGHT 2002 CANON INC CANON FAX BOARD REV 0 MAR 2002 CHAPTER 3 TROUBLESHOOTING...
Страница 680: ......
Страница 688: ......
Страница 694: ......
Страница 695: ...COPYRIGHT 2002 CANON INC 2001 2001 2001 2001 CANON Printer Board N1 iN E5 REV 0 MAR 2002 CHAPTER 1 INTRODUCTION...
Страница 696: ......
Страница 702: ......
Страница 703: ...COPYRIGHT 2002 CANON INC 2001 2001 2001 2001 CANON Printer Board N1 iN E5 REV 0 MAR 2002 CHAPTER 2 OPERATION...
Страница 704: ......
Страница 711: ...COPYRIGHT 2002 CANON INC 2001 2001 2001 2001 CANON Printer Board N1 iN E5 REV 0 MAR 2002 CHAPTER 3 DISASSEMBLY ASSEMBLY...
Страница 712: ......
Страница 721: ...COPYRIGHT 2002 CANON INC 2001 2001 2001 2001 CANON Printer Board N1 iN E5 REV 0 MAR 2002 CHAPTER 4 TROUBLESHOOTING...
Страница 722: ......
Страница 732: ......
Страница 733: ...COPYRIGHT 2002 CANON INC 2001 2001 2001 2001 CANON Printer Board N1 iN E5 REV 0 MAR 2002 APPENDIX...
Страница 734: ......
Страница 736: ......
Страница 738: ...PRINTED IN JAPAN IMPRIME AU JAPON xxxxGRx x x This publication is printed on 100 reprocessed paper...