Ricoh infotec 3671F Service Manual page 15

OVERALL MACHINE INFORMATION
VIDEO DATA PATH
1.5.2. Reception
LIF: Laser Interface
DCR:Data Compression &
Reconstruction
MDM: Modem
Data from the line passes to the modem through the NCU and hybrid IC. Af-
ter the modem demodulates the data, the data passes to the DCR block,
through either the FIFO or the ECM memory, where the data is decom-
pressed to raster image data.
The raster image data is then passed to the page memory for printing. After a
page of data has been stored in the page memory, the data is sent to the
MCB through the LIF block in the FCIP, and then to the LDDR.
From the Network
NCU
HIC
Amplifier
MDM
E144EFXL
FCIP
Modem
DCR
DATA/ADDRESS BUS
DRAM
Line Buffer
ECM/SAF Page
/FIFO
Memory Memory
Memory
1-12
FCU
LIF
MCB
LDDR
Copy Paper
July 24th, 1996
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