Service manual

FO-IS125N
5 – 28
[6] Data flow chart
1. COPY
2. FAX/SEND
3. FAX RECEIVE
4. NET WORK (Print)
5. NET WORK (Scan)
CIS
SDRAM
(IC202)
Laser Scan
Unit
1
2
Control PWB
3
Fax Engine
(IC100)
4
Printing
CIS
SDRAM
(IC202)
LSD
(Line Side Device)
(IC1100)
1
2
6
Control PWB
5
Fax Engine
(IC100)
7
Fax Modem
(IC1000)
PSTN
TEL LINE
3
Flash
(IC201, IC203, IC204, IC206)
4
TEL LINE
LSD
(Line Side Device)
(IC1100)
Fax
Modem
(IC1000)
Fax Engine
(IC100)
1
SDRAM
(IC202)
PSTN
Control PWB
2
3
6
Laser Scan
Unit
Printing
4
Flash
(IC201, IC203,
IC204, IC206)
5
7
Ethernet
SDRAM
(IC202)
Laser Scan
Unit
1
3
2
Control PWB
4
LAN
Controller
(IC800)
5
Fax Engine
(IC100)
Printing
CIS
SDRAM
(IC202)
1
2
4
Control PWB
3
Fax Engine
(IC100)
Ethernet
LAN
Controller
(IC800)
5