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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 FIXING SYSTEM
6-4 P
2 Fixing Drive System
2.1 Outline
The fixing drive system involves the following control mechanisms:
1. Fixing roller drive control
2. Fixing film rotation speed detection/control
2.2 Controlling the Fixing Roller Drive
F06-202-01 shows the construction of the control system used for the fixing roller drive:
The following signals are used:
[1] Fixing motor drive signal (FSAR_ON):
when ‘1’, the motor goes ON.
[2] Fixing motor drive lock signal (FSAR_CLK):
when the rotation of the fixing motor reaches a specific speed, ‘0’.
[3] Fixing motor low-speed drive signal (FSAR_SPEED):
when the rotation of the fixing motor is controlled to 1/4, ‘1’.
F06-202-01
E014 (fixing motor speed error)
Indicates that the drive lock signal cannot be detected with 1.3 sec after the
fixing motor drive signal (M4) is generated.
FSAR_ON*
FSAR_LOCK*
N.C
FSRM_CLK
FSRM_SPEED*
M4
24V
GND
DC controller PCB
Fixing motor
Fixing lower roller
Main power supply PCB