Canon F-1, Service Manual

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Technology > Basic configuration > Reader > Parts configuration
Technology > Basic configuration > Reader > Parts configuration
Basic configuration
Reader
■ Function configuration
Following is the list of functions.
Original size detection
Image processing Dust detection
Scanner drive
Reader controller PCB
A/D conversion
Image scanning
Scanner unit Reader unit
Magnification change
Main controller PCB
F-2-1
■
Parts configuration
Followings are the positions and names of main configuration parts.
Original size sensor 2
(CF2)
Original size sensor 1
(CF1)
Scanner unit
cooling fan (FM2)
Scanner unit
DADF
open/closed
sensor 1
(SR1)
Scanner unit
home position sensor
(SR2)
Scanner unit
exhaust fan (FM1)
Reader controller PCB
(PCB1)
Scanner motor (M1)
DADF
open/closed
sensor 2
(SR3)
Component part Symbol Function/specification
Scanner motor M1 2 phase pulse motor: pulse control
Scanner unit exhaust fan FM1 Exhaustion of scanner unit
Scanner unit cooling fan FM2 Cooling of scanner unit
DADF open/closed sensor 1 SR1 DADF open detection (DADF is detected at 5 degree)
Scanner unit HP sensor SR2 Scanner unit HP detection
DADF open/closed sensor 2 SR3 DADF open detection (size detection timing is detected
when DADF is open at 25 degree.
Original size sensor 1 CF1 Size detection in sub scanning direction (AB type)
Original size sensor 2 CF2 Size detection in sub scanning direction (INCH type)
Scanner unit --- Image reading, analog image processing
Reader controller PCB PCB1 Control of entire reader, digital image processing
F-2-2
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