Various Control; Controlling The Scanner Drive System; Outline; Reader Motor Control - Canon iR2030 Series Service Manual

Chapter 4

4.3 Various Control

4.3.1 Controlling the Scanner Drive System

4.3.1.1 Outline

The machine's scanner system consists of the following components:
Original glass
cover open/close
sensor (SR403)
[1] Reader motor (M401) drive signal
Controls rotation/stop and rotational direction/speed of the reader motor.
[2] Contact image sensor (CIS) HP sensor (SR401) signal
Detects that the contact image sensor (CIS) is at the home position.
[3] Copyboard cover sensor (SR403 (front)/SR402 (rear)) signal
Detects the open/close status of the copyboard cover.

4.3.1.2 Reader Motor Control

The reader motor driver controls rotation/stop and rotational direction/speed of the reader motor based on the signals from IC2.
4-6
Reader controller
PCB
Original glass
cover open/close
sensor (SR402)
[3]
[2]
CISHP sensor (SR401)
Reader controller PCB
3.3V
RTP3APWN
RTP3BPWN
RTP3A
IC2
RTP3B
MO_STANDBY
MO_TORQUE
MEMO:
The scan speed of this machine is as follows:
Copy (100%): 118 mm/sec
Color send (300 dpi x 300 dpi): 28 mm/sec
Reader motor
[1]
Sensor
shading
plate
Backward
movement
Guide shaft
F-4-10
+5V +24V
J409
1
Motor
2
driver
3
4
F-4-11
Carriage drive belt
Forward
movement
Carriage
Contact image
sensor (CIS)
B*
B
A M401
A*
0017-2626
0017-2627