Canon Color imageRUNNER C4580 Service Manual - page 169
Chapter 6
6-2
6.1.2 Major Components
The original exposure system consists of the following major components:
T-6-2
F-6-1
Item
NotationDescription
Description
Scanning lamp
LA1
xenon lamp: 77.500 lx
Scanner motor
M501
2-phase pulse motor: pulse control
Reader Cooling fan
FM13
cools the reader assembly.
Scanner HP sensor
PS501
detects the home position of the scanner.
ADF open/closed sensor 1
PS502
detects the state (open/closed) of the ADF using the ADF open/closed
sensor (5 deg).
ADF open/closed sensor 2
PS503
detects the size with the ADF at 25 deg or less.
Original size sensor (AB-
configuration)
---
detects the size in sub scanning direction (AB-configuration)
Original size sensor (inch-
configuration)
---
detects the size in sub scanning direction (inch-configuration)
Mirror
---
No. 1, No. 2, No. 3, mirror
Interface
PCB
Anti-condensation
sensor
Original scanning lamp
Reader cooling fan
Inverter PCB
CCD unit
Scanner
HP sensor
ADF
open/closed sensor 2
Reader controller
PCB
Original size sensor
(inch-configuration sensor)
Signal size sensor
(A/B-configuration)
Scanner motor
ADF
open/closed sensor 1