CHAPTER 8 EXTERNALS AND AUXILIARY CONTROL SYSTEM
COPYRIGHT© 2002 CANON INC.
2000
CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
8-10
4.2 Control
4.2.1 Controlling the Speed
The machine’s heat discharge fan (FM101) is subjected to 2-speed control (full-speed and
half-speed) as follows:
[1] Full-Speed Control
When the ASIC on the DC controller PCB causes the fan ON signal (FANON) to go ‘1’
and the fan full-speed rotation signal (FANFULL) to go ‘1’, the drive voltage control
block supplies fan drive voltage (FANDRV) of +24 V to rotate the heat discharge fan to
rotate at full speed.
[2] Half-Speed Control
When the ASIC on the DC control PCB causes the fan ON signal (FANON) to go ‘1’
and the fan full-speed rotation signal (FANFULL) to go ‘0’, +16V fan drive voltage
(FANDRV) is supplied to rotate the heat-discharge fan at half speed.
F08-402-01
J106
+24V
Heat discharge fan
(FM101)
FANDRV
FANLOCK*
FANON
FANFULL
ASIC
Drive voltage
control block
CPU
DC controller PCB
15
16
14
Summary of Contents for iR1600 Series
Page 24: ......
Page 26: ......
Page 96: ......
Page 110: ......
Page 112: ......
Page 144: ......
Page 146: ......
Page 158: ......
Page 160: ......
Page 182: ......
Page 216: ......
Page 218: ......
Page 248: ......
Page 250: ......
Page 284: ......
Page 298: ......
Page 300: ......
Page 312: ......
Page 314: ......
Page 366: ......
Page 368: ......
Page 378: ......
Page 604: ......
Page 606: ......
Page 648: ......
Page 650: ......
Page 652: ......
Page 656: ......
Page 660: ......
Page 665: ...COPYRIGHT 2002 CANON INC CANON FAX BOARD REV 0 MAR 2002 CHAPTER 1 INTRODUCTION...
Page 666: ......
Page 671: ...COPYRIGHT 2002 CANON INC CANON FAX BOARD REV 0 MAR 2002 CHAPTER 2 BASIC OPERATION...
Page 672: ......
Page 679: ...COPYRIGHT 2002 CANON INC CANON FAX BOARD REV 0 MAR 2002 CHAPTER 3 TROUBLESHOOTING...
Page 680: ......
Page 688: ......
Page 694: ......
Page 696: ......
Page 702: ......
Page 704: ......
Page 712: ......
Page 722: ......
Page 732: ......
Page 734: ......
Page 736: ......