Pc Fax - Ricoh Aficio FX10 Service Manual

June 10th, 1997 OVERALL MACHINE INFORMATION
VIDEO DATA PATH

1.5.6. PC Fax

When transmitting data from a PC, the PC fax software produces the AT com-
mands and sends them to the specified COM port of the PC. The software
redirects them to the specified parallel port. Then the commands and data
are sent from the parallel port to the machine. The D6002 receives them, and
the commands are sent to the FCIP2. The FCIP2 controls the modem in ac-
cordance with the AT command sent from the PC, and the data is sent
through the modem and the NCU.
When receiving data, the data is stored in the ECM buffer in the same way as
for the memory reception mode. The data is then sent to the PC via the
D6002.
PC
D6002
FCIP2 M o d e m
D a t a / A d d r e s s B u s
Amplifier
E C M
HIC
Memory
FCU
N C U
To the network
H523v514.wmf
PC Fax Transmission
The PC data is compressed by the application software being used. The data
passes to the ECM memory through the D6002 without any processing. Then
it is sent to the telephone line through the modem and the NCU.
PC Fax Reception
The data from the line passes to the modem through the NCU. The data
demodulated in the modem passes to the D6002 through the ECM memory.
The data is reconstructed by the application software being used.
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