Canon FAX-L260i Service Manual page 212

FAX-L260i Chapter 3: Maintenance & Service
8.2 Connector Name and Signal Descriptions
SCNT board
Connector name Connected to
J1
J2
J3
J4
J5
J6
J7
J8
G4 board
Connector name Connected to
J1
J2
PCNT board
Connector name Connected to
J201
J202
J203
J401
J402
J403
Power supply unit
(J201)
Toner sensor
Speaker
G4 board (J1)
G4 board (J2)
Contact sensor
Operation panel ass'y
PCNT board (J201)
SCNT board (J4)
SCNT board (J5)
SCNT board (J8)
Paper sensor
Paper edge sensor
Fixing heater
Scanner unit
Main motor
Document feed motor
Front cover/
cartridge sensor
Power supply unit
3-116
Description
Input connector for +5V and +12V DC voltage converted
by the PSU.
Receives detection signals from the toner sensor.
Connects to speaker.
The +5V DC from the power supply unit is supplied to the
G4 board via the SCNT board. Also, the G3 communication
signal sent from the G4 board to the SCNT board.
Image data is exchanged between the SCNT board and the
G4 board through the centronics interface.
Connects between scanning section and contact sensor. Its
purpose is to drive voltage for the contact sensor, and to
receive image signals.
Connects to Operation panel ass'y. Performs keyinput data
exchange and LCD data exchange. This also includes docu-
ment sensor and document edge sensor signals.
Conducts data exchange of the document feed motor con-
trol signal, the printer image data and the printer commands
and status.
Description
See SCNT board (J4)
See SCNT board (J5)
Description
See SCNT board (J8)
Receives detection signals from the paper sensor.
Receives detection signals from the paper edge sensor.
The signals for the fixing ass'y temperature control-
ler, and the LASER and scanner motor controllers are being
exchanged.
Supplies drive voltage for the main motor.
Supplies drive voltage for the document feed motor.
Receives detection signals from the front cover/
cartridge sensor.
Input connector for +5V and +12V DC voltage converted
by the PSU.