Ricoh SP 200 Specifications download pdf (Page 35)

2.5 MSU (MEMORY SUPER-CHARGER UNIT)

The MSU consists of the memory controller and the DRAM. The functions of

each device are as follows.

Memory Controller: Compressing the 1-bit image data

Image rotation

Image data transfer to the DRAM

DRAM (standard 4MB): Stores the compressed data (2 MB)

Working area (2 MB)

The data which was treated with binary picture processing goes to the MSU.

The data is first compressed using the MMR process and the compressed

data is stored in the DRAM. When printing, the data from the DRAM goes

back to the memory controller, where the data is decompressed and image

editing is done (e.g., image rotation, repeat image, combine image).

The memory capacity changes when optional memory is installed on the

MSU board. The copier functions for each memory combination are as

follows.

Standard (4 MB) Optional 4 MB Optional 8 MB

Multi duplex copy X O O

Sort, Rotate Sort A4, LT O O O

B4, LG X O O

A3, DLT X O O

Number of pages A4 6% 35 99 99

ITU-T#4

(12% black)

15 45 75

X: Not Available O: Available

IPU

CPU

Memory

Controller

DRAM

MSU

BICU

BUS

A193D528.wmf

IMAGE PROCESSING 1 August 1996

2-16

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 237 238

No comments

Ricoh SP 200 Specifications Page 35