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COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-77 T
6.6.1 Others
Electrical signal (target)
Reference to general
I/O address Remarks
Name circuit diagram I/O indication
SP1 (FAX-CON)
A3-1-E
Speaker
6.6.2 PCBs
Ref. Description Remarks
Name
[1] Controls the fax system.
G3 FAX control PCB
[2] Serves as an interface between 100V and 120V models use
NCU PCB telephone line and fax system. different interfaces.
[3] Connects a modular cable. 100V and 120V models use
G3 modular PCB different interfaces.
[4] Stores firmware for the fax 16M bit
DIMM system.
[5] Generates a pseudo CI signal. 100V
Pseudo CI PCB
[6] Detects off-hook state of the 120V
Off-hook detection PCB telephone