Control System Configuration; Reader Controller Pcb - Canon iR2020 Series Service Manual

Chapter 4
[6]
[7]
[8]
[9]
[10]
[11]
[12]
*1 Option setting

4.1.3 Control System Configuration

iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
The control system configuration of the original exposure system is shown below.
[1] Printer main body (Connected to the image processor PCB)
[2] Connected to ADF
[3] Connected to the power supply PCB
[4] Reader motor drive control
[5] Reader motor (M401)

[6] Reader controller PCB

[7] Original sensor (horizontal scan direction)
[8] Original sensor (vertical scan direction)
[9] Contact image sensor
[10] Image signal
[11] CISHP sensor (PS503)
[12] Copyboard cover open/close sensor (Front: SR403)
[13] Copyboard cover open/close sensor (Front: SR402)

4.1.4 Reader Controller PCB

iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
The functional configuration of the reader controller PCB is shown below.
4-2
Component
Reader motor
Reader heater*1
Original sensor 1
Original sensor 2
Contact image sensor (CIS)
CISHP sensor
Copyboard cover open/close
sensor
[3]
[2]
[1]
[13]
[12]
[11]
No. Function/Specification
M401 Pulse motor: Controls drive of the carriage.
- Prevents condensation inside the original glass.
SR404 Detects the original size (AB, INCH/A, INCH/AB).
SR405 Detects the original size (AB, A, INCH/AB)
- Uses LEDs for indirect exposure (LED +
Photoconductor)
SR401 Photo interrupter: Detects the CIS position.
SR403 Finishes detecting the original size when the
copyboard cover angle is 5 deg.
[4] [5]
[6]
[9]
[10]
F-4-2
[7]
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0010-4244
0010-4245