Various Control Mechanisms; Controlling The Scanner Drive System; Overview; Reader Motor Control - Canon iR C2880 Series Service Manual

5.3 Various Control Mechanisms

5.3.1 Controlling the Scanner Drive System

5.3.1.1 Overview

iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i
The following components are associated with the scanner drive system:
Copyboard cover
open/closed sensor
(PS503)
copyboard cover
open/closed sensor
(PS502)
[1] Reader Motor (M501) Drive Signal
used to turn on/off the motor and change its direction/speed of rotation.
[2] Contact Image Sensor (CIS) Home Position sennsaor (PS501) Detection Signal
used to indicate that the contact image sensor (CIS) is in home position,
[3] Copyboard Cover Sensor (front, PS502; rear, PS503) Detection Sugnal
used to indicate the state (open/closed) of the copyboard cover.

5.3.1.2 Reader Motor Control

iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i
The reader motor driver turns on/off the reader motor and controls its direction/speed of rotation.
MEMO:
The machine uses any of the following scan speeds according to selected mode:
Function
Copy
[1]
Reader control PCB
[3]
[2]
CIS HP sensor
Reader control PCB
3.3V
OPT_MCK
CCW
MD_POW
CPU
M_ENABLE
RETURN
M_VREF
Mode
full color mode
Reader motor
Carriage drive belt
Sensor
light-blocking
plate
(reverse)
Contact image
sensor (CIS
Guide shaft
F-5-10
+5V +24V
J505
B*
1
B
Motor 2
A
driver
3
A*
4
F-5-11
T-5-5
Chapter 5
(reverse)
Carriage
M501
Scan speed
118 mm/sec
0013-8578
0013-8579
5-7