Table of Contents
Advertisement
August 2nd, 1995
1.4. OVERALL MACHINE CONTROL *
Optional
IC Card
Optional
100 Sheet
Cassette
FDU
Optional
Printer I/F
Energy
Saver
CPU
DC-DC
PSU
Converter
Fusing
NCU
Lamp
Handset
The FCE2 (Facsimile Control Engine) contains the FCIP (Facsimile Control
and Image Processor), DRAM, SRAM, System ROM, R144EFXL modem,
and video processing memory, and controls the entire system through the
FDU (Facsimile Driver Unit).
There are two cpus in the machine: the main cpu (FCIP) on the FCE and the
energy saver cpu on the FDU. In energy saver mode, the main CPU switches
off and the energy saver CPU takes over.
The FCIP consists of the following component blocks:
•
RU8 CPU - Main CPU
•
LIF- Laser Interface
•
PRIF - Printer Interface
•
DCR - Data Compression and Reconstruction
The modem inside the FCIP is used for V.29, V27.ter, and V.21 communica-
tions. In addition, the Rockwell R144EFXL modem is used for V.17 and V.33
communications.
The 1.5 MB DRAM contains the SAF memory, ECM buffer memory, work
area, and page memory. The SAF memory can be extended by 2 or 4 Mbytes
with an IC card.
A 512 kB (4 Mbit) flash ROM is used for the system ROM. Software in this
ROM can be rewritten from the IC card slot or by RDS. Another 128 kB mask
ROM contains LCD wording data.
DRAM
Working
ECM/SAF
RAM
Memory
DATA/ADDRESS BUS
FCE2
R144EFXL
Modem
Control Signals
Hybrid IC
External I/O (EXIO)
(HIC)
Driver
Power
Optional
Speaker
Pack
Counter
1-15
OVERALL MACHINE INFORMATION
OVERALL MACHINE CONTROL *
Optional
RS232C I/F
Page
Memory
System
System
ROM
RAM
(Flash)
(SRAM)
FCIP
Drivers
(FPD)
Operation
Scanner
Panel
and
printer
components
and
sensors
•
MDM - Modem
•
DMAC - DMA Controller
•
DIP - Digital Image Processor
Video
SRAM
LDDR
Thermistor
Contact
Amplifier
Image
Sensor
Tx
and
paper
feed
motors
Sensors
H516V506.wmf
Advertisement
Table of Contents
