Image Data Processor - Konica Minolta bizhub 200 Service Manual

3. Summary of Board functions
3.1.3

Image Data Processor

A. Overview
• This processor has interface blocks with the BS unit or the printer units, and the Fax
communication block. It has a storage coder/decoder and a storage code memory man-
ager (DEM LSI), image memory (SDRAM FILE), a printer controller (DEM LSI), a
modem (V.34), and a communication controller (DEM LSI).
• Each block is controlled by the CPU (RM5231A) of the MFBS board.
• The image memory has an external Ni- MH battery for backup.
B. Block diagram
Scanner
Printer
10
DEM LSI
Binary signal
Storage coder
Print
Control signal
image size
converter
Video
Communication
image size
converter
Modulator/demodulator
Control signal
Theory of Operation Ver. 1.0 Aug. 2005
Storage
decoder
File management
Storage
coder
Storage
decoder
Communication coding/decoding
FAX
Image
memory
SDRM
Backup
circuit
Rotation
memory
Recorded
image
rotstpr
V.34
Modem
4040T2E609AA