![Ricoh FAX2900L Скачать руководство пользователя страница 20](http://html1.mh-extra.com/html/ricoh/fax2900l/fax2900l_service-manual_1456049020.webp)
21 May, 1999
OVERALL MACHINE CONTROL
1-13
1.4 OVERALL MACHINE CONTROL
The FCU (Facsimile Control Unit) contains logical components for overall system
control, and a direct interface to the IC card, G4 interface (SiG4), and an RS232C
interface.
NOTE: The RS232C interface is not available in some countries.
There are two CPUs in the machine: the main CPU (FCIP05) and the energy saver
CPU. The FCIP05 contains components such as the 8 bit CPU (RU8), DIP (Digital
Image Processor), LIF (Laser Interface), DCR (Data Compression and
Reconstruction) and DMA Controller.
In energy saver mode, the main CPU switches off and the energy saver CPU takes
over.
AFE
Flash
R O M
D R A M
S RAM
M o d e m
FCIP05
SYSTEM BUS
F C U
EXIO
Optional
IC Card
SiG4
Interface
Energy
Saver
CPU
I/O Driver
24V Driver
Motor
Driver
RS232C
Interface
Amplifier
N C U
Optional
P F U
Stamp
Polygon
Motor
Operation
Panel
L D D R
Power Pack
Main Motor
Contact
Image Sensor
Tx and Paper
Feed Motors
H547V505.WMF