Major Components - Canon iR3245 Series Service Manual

Chapter 5

5.1.2 Major Components

iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
Following shows major components of document exposure system.
[9]
Item
[1] LED driver PCB
[2] Reader controller PCB
[3] Scanner motor
[4] Reader heater *1
[5] Original sensor 1
[6] Original sensor 0
[7] CCD unit
[8] CCD unit HP sensor
[9] Copyboard cover sensor (front)
[10] Copyboard cover sensor (rear)
*1 Optional (for 100V model only/ available as a service part only for 230V model)
5-2
[2]
[1]
[10]
[8]
[4]
Notation
-
-
M1
-
SR5
SR4
-
SR1
SR2
SR3
[3]
[7]
F-5-1
Description
Controls to turn on LED
Controls the reader unit drive and image process
Pulse motor: controls the carriage drive
Prevents condensation on the copyboard glass
Helps identify original size (A/Inch, AB/Inch only)
Helps identify original size (AB,A,AB/Inch only)
Indirect exposure by LED (LED & photoconductive body)
Detects CCD home position
Ends original size identification with the copy board cover at 5 deg
Detects the copyboard cover open/close. Starts original size identification with the copy board
cover at 25 deg.
[4]
[5]
[6]
0019-4630