Canon IR3300, IR2800, IR2200 Fixing Drive System, Controlling the Fixing Roller Drive, F06-202-01

CHAPTER 6 FIXING SYSTEM

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:

DC controller PCB

Fixing motor

FSAR_ON*
FSAR_LOCK*
N.C	M4
FSRM_CLK
FSRM_SPEED*
	Fixing lower roller
	24V GND

Main power supply PCB

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.

6-4 P COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001