Service manual

Chapter 4
4-4
F-4-4
[1] Printer main body (Connected to the image processor PCB)
[2] Connected to ADF
[3] Connected to the power supply PCB
[4] Reader motor drive control
[5] Reader motor (M401)
[6] Reader controller PCB
[7] Contact image sensor
[8] Image signal
[9] CISHP sensor (PS503)
[10] Copyboard cover open/close sensor (Front: SR403)
[11] Copyboard cover open/close sensor (Front: SR402)
4.1.7 Reader Controller PCB (iR2020/iR2020J/iR2020i)
0010-4245
iR2020 / / iR2020i
The functional configuration of the reader controller PCB is shown below.
F-4-5
T-4-5
Jack No. Function
J401 Supplies power (24 VDC) from the main body (printer).
J402 Supplies power (5 VC, 3.3 VDC) from the main body (printer).
J403 Communicates with the main body (printer) (to control the ADF).
J404 Communicates with the main body (printer).
J405 Connected to the copyboard open/close sensor.
J404
J403
J412
J411
J407
J401
J402
J408
J409
J410
J405
J413
J406
[5]
[11]
[10]
[9]
[2]
[1]
[3]
[8]
[4]
[6]
[7]
J409
J412
J411
J403J404J405
J402
IC1
J408
J407
IC5
J413
J406
J410
IC9
IC4
J401
DC24V
DC3.3V
DC5V
IC2