Arrangement Of Pcbs; Outline - Canon ImageRunner iR8500 Series Service Manual

Scanning lamp
Scanner motor
Scanner home position
Image leading edge
Copyboard glass sensor
Fluorescent lamp
temperature sensor
Light intensity sensor
Fluorescent lamp heater
Mirror

5.1.4 Arrangement of PCBs

iR105i/iR105+ / iR9070
The PCBs of the reader unit are arranged as follows:
[1]
[2]
[3]
[4]
The reader controller PCB is located where the image processor PCB was found.

5.1.5 Outline

/ iR8070
Component
Notation
FL1
M5
PS1
PS3
PS57
H5
PD2001
H5
[3]
[2]
[1]
[5]
[6]
Transformer PCB
Light adjustment control PCB
Fluorescent lamp inverter PCB
Scanner motor driver PCB
Description
Fluorescent amp (rated at 43 W)
5-phase stepping motor
Photointerrupter (detects the scanner home
Photointerrupter (detects the image leading edge)
Photointerrupter (detects the presence/absence of
the copyboard glass)
Thermistor (detects the fluorescent lamp heater
temperature)
Photodiode (detects the lamp light intensity)
Nickel chrome line (rated at 36 W; stabilizes the
temperature inside the fluorescent lamp)
No. 1 through No. 3 mirrors
F-5-3
[4]
F-5-4
T-5-3
[5] Original orientation detection PCB
[6] Reader controller PCB
[7] Laser scanner motor driver PCB
[8] CCD/AP PCB
Chapter 5
[8]
[7]
0006-9531
0008-7397
5-3