Ricoh FAX2000L User Manual

30 November, 1999 PCBS
2-39
Detailed
Descriptions
2.4 PCB
S
2.4.1 FCU
The FCU (Facsimile Control Unit) board contains the FCIP2 (Facsimile Control and
Image Processor), DRAM, SRAM, Flash ROM, and video processing memory, and
it controls the entire system.FCIP2
•
CPU
•
Data compression and reconstruction (DCR)
•
Digital image processor
•
Laser interface
•
DMA controller
•
Clock generation
•
Stepper motor control
•
DRAM backup control
•
Fusing lamp control
ROM
•
1MB (8 Mbits) flash ROM for system software storage
DRAM
•
2 MB DRAM shared between the Line Buffer (124 KB), ECM Buffer (128 KB),
Page Memory (1156 KB), System RAM (128KB), and SAF memory (512 KB)
SRAM
•
32 KB SRAM for system and user parameter storage, backed up by the
battery on the FCU
Video SRAM
•
8 KB SRAM for video processing
NCU
Operation
Panel
AFE
DRAM
Flash
ROM
SRAM
Modem
EXIO
SYSTEM BUS
FCU
GEPC
FCIP2
Main
Motor
Motor
Driver
IC Card
I/F
Power
Pack
VIDEO
RAM
Energy
Saver
CPU
H545D701.WMF

Ricoh FAX2000L Specifications

General

Brand	Ricoh
Model	FAX2000L
Category	Fax Machine
Language	English