Oki 24DX manual Eeprom, Menu

Models: 24DX

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(3)DRAM's

16-Megabyte DRAM (64 Mbit DRAM x 2) is mounted as resident memory to be used for storing the program and providing various buffers. This DRAM is expandable up to 128 Mbytes by adding expansion memory (SIMMs). This DRAM provides the areas shown in the following table.

Memory area

Use

Memory capacity setting

 

 

 

 

 

 

 

 

MENU

Expansion RAM

 

 

 

 

System area

Working area used for the program

Fixed

Fixed

 

 

 

 

Raster buffer

Stores converted bit image data

Enable

Expandable

 

 

 

 

Receive buffer

Stores temporarily the data received

Enable

Expandable

 

 

from the host interface

 

 

 

 

 

 

 

Page buffer

 

Adds print information to the analyzed

Expandable

 

 

receive data and stores the resulted

 

 

 

 

data.

 

 

 

 

 

 

 

DLL/macro

buffer

Stores soft fonts and macro data.

Expandable

 

 

 

 

 

Font cache

buffer

Stores bit map fonts generated by the

Enable

Expandable

 

 

font rasterizer based on scalable font

 

 

 

 

information

 

 

 

 

 

 

 

(4)EEPROM

The EEPROM has a 16-kbit capacity and stores the following data.

Menu data

Various counter data (page counter, drum counter, fuser counter, etc.)

Adjustment parameters (LED head drive time, print start position, etc.)

(5)LSI (LZ9FF22)

Built in device

Function

 

 

Serial I/O port

Control of serial interface between controller and 2nd tray, 3rd tray, Multi purpose feeder

 

Control of serial interface between controller and Duplex unit

 

 

Motor driver controller

Control of Hopping motor

 

 

I/O port

Inputting of various sensor signals

 

Outputting of various control signals

 

 

(6)Host interface

This printer has the following interfaces to the host.

Centronics bidirectional parallel interface

RS232C interface

OKI HSP interface (Option)

The single effective interface or the automatic interface select mode can be selected using the menu. If the busy state of the printer continues for a long time period, the buffer near- full control releases the busy status at constant intervals even if the host side is busy so not to cause the interface time-out at the host side.

40930701TH DRAFT Vesion

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Image 17
Oki 24DX manual Eeprom, Menu