Canon imagePRESS C1 P, Руководство по обслуживанию, Страница: 285 / 1265

Chapter 5
5-6
F-5-11
5.3 Various Control Mechanisms
5.3.1 Controlling the Scanner Drive System
5.3.1.1 Overview
0012-9672
imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+
The following shows the arrangement of the components associated with the drive of the scanner:
F-5-12
[1] Scanner Motor M501 Drive Signal
controls the activation/deactivation of the motor and the direction and speed of the motor.
[2] Scanner HP Sensor PS501 Detection Signal
used in reference to the detection of the No. 1 mirror base at its home position.
[3] ADF Open/Closed Sensor 1 PS502 Detection Signal
used in reference to the detection of the state (open/closed) of the ADF.
[4] ADF Open/Closed Sensor 2 PS503 Detection Signal
used in reference to the detection of the state (open/closed) of the ADF.
5.3.1.2 Controlling the Scanner Motor
0012-9673
imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+
The following shows the construction of the mechanisms used to control the scanner motor.
1. HP positioning
2. move to shift shading
start position
6. original stream reading scan
7. stream reading dust detection
- move to the next point
if there is dust (7 points)
Stream reading position Shading
position
Image leading
edge
Original size
detection position
*1
*1
*2
*2
*1: move only if the copyboard cover (ADF) is open
*2: executed only if 1 min (power ON) or more has passed from the previous session.
3. shift shading
5. move to stream reading position
8. move to stand by position
9. move to shift shading
start position
10. shift shading
11. fixed shading
- dust detection
- shading correction
4. fixed shading
- white plate dust detection
- shading correction
[1]
[2]
[3]
[4]
Reader
drive
PCB
Interface
PCB
forward
reverse
Scanner motor
Light-blocking
plate
No. 2 mirror
base
Scanning
lamp
No. 1 mirror base
ADF open/closed
sensor 2
ADF open/closed
sensor 1
Scanner HP
sensor