Canon imageRunner 2022, Service Manual

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Chapter 4
4-2
4.1.3 Major Components (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022)
0017-5568
iR2022i / iR2025 / iR2030 / iR2022
Major components of the original exposure system are as follows:
F-4-1
T-4-3
Carriage position
detection Contact image sensor (CIS) HP sensor (SR401)
Magnification range 50% to 200%
Vertical scan direction: Image processing is by image processor PCB
Horizontal scan direction:
BOOK mode:
Carriage movement speed change and image
processing by image processor PCB *1
ADF mode:
Original feed speed change and image processing by
image processor PCB *1
Lens Rod lens array
CMOS sensor Number of lines: 1
Number of pixels: Total 7488 (incl. 7176 effective pixels)
Maximum original scan width: 304 mm
CIS drive control Drive control by reader motor (M401)
Original size detection [1] BOOK mode: not used
[2] When ADF is used
Width: Detection by original width sensor PCB in ADF
Length: Detection by photo sensor in ADF
*1 The control method depends on the magnification. For more details, refer to "Magnification Change".
Component No. Function/Specification
[1] Copyboard cover open/close
sensor (Rear: SR402) SR402 Photo interrupter: Detects the copyboard cover open/
close status. Starts detecting the original size when the
copyboard cover angle is 30 deg.
[2] Reader controller PCB - Controls drive of the reader unit and image processing.
[3] Original sensor 3 SR406 Detects the original size (for all destinations).
[4] Original sensor 4 SR407 Detects the original size (AB, INCH/AB).
[5] Original sensor 5 SR408 Detects the original size (INCH/A)
[6] Reader motor M401 Pulse motor: Controls drive of the carriage.
Item Function/Method
[6]
[4]
[5]
[3]
[9]
[8]
[2]
[1]
[12]
[7]
[7]
[11]
[10]