Major Components; Reader Relay Pcb - Canon D1 Service Manual

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Product Outline > Names of Parts (Reader) > Cross Section > Reader Relay PCB

■ Major Components

Following shows major components of document exposure system.
[PCB1]Relay Board
[SR3]Copyboard Cover
Open/Closed Sensor(Front)
[SR2]Copyboard Cover
Open/Closed Sensor(Rear)
[SR1]CCD HP Sensor
[H5]Reader Heater(Option)
Item Notation
Scanner motor M1 Pulse motor: controls the carriage drive
CCD HP sensor SR1 Detects CCD home position
Copyboard Cover Open/Closed SR2 Ends original size identification with the copy board
Sensor (front) cover at 15 deg
Copyboard Cover Open/Closed SR3 Detects the copyboard cover open/close. Starts original
Sensor (rear) size identification with the copy board cover at 5 and 25
deg.
Original Size Sensor 0 SR4 Helps identify original size(AB, INCH/AB, A)
Original Size Sensor 1 SR5 Helps identify original size(INCH/AB, INCH/A)
CCD unit - Indirect exposure by LED (LED & photoconductive
body)
Reader Heater (Option) H5 Prevents condensation on the copyboard glass

Reader relay PCB

PCB1 The part of the image processing
1 Product Outline > Names of Parts (Reader) > Cross Section > Reader Relay PCB
[M1]Scanner Motor
[H5]Reader Heater(Option)
[SR5]Original Size Sensor 1
[SR4]Original Size Sensor 0
[8]CCD Unit
F-1-4
Specification/function
T-1-2
■ Reader Relay PCB
The function configuration of reader controller PCB is described below.
J508
Jack No
J501 Connection to original size sensor
J502 Connection to original size sensor
J503 Power supply to DADF
J504 Communication with DADF
J505 Connection to Scanner motor
J506 Connection to original size sensor
J507 Communication with main controller PCB 2
J508 Communication with CCD
J509 Communication with DADF
J510 Connection to copyboard cover open/close sensor and CCD HP sensor
J511 Receives power from the host machine (printer unit)
J512 Communication with main controller PCB 2
J506
J511
J510
J503
J509
J507 J512
F-1-5
Description
T-1-3
1-4
1-4