Canon iR2200 Service Handbook page 123

6.6.1 Others
Electrical signal (target)
Name
SP1 (FAX-CON)
Speaker
6.6.2 PCBs
Ref.
Name
[1]
G3 FAX control PCB
[2]
NCU PCB
[3]
G3 modular PCB
[4]
DIMM
[5]
Pseudo CI PCB
[6]
Off-hook detection PCB
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Reference to general I/O address
circuit diagram I/O indication
A3-1-E
Description
Controls the fax system.
Serves as an interface between
telephone line and fax system.
Connects a modular cable.
Stores firmware for the fax
system.
Generates a pseudo CI signal.
Detects off-hook state of the
telephone
Remarks
Remarks
100V and 120V models use
different interfaces.
100V and 120V models use
different interfaces.
16M bit
100V
120V
4-77