%2.1 Control Board

2.1 Control Board

The control board consists of a single chip CPU, Program & Font ROMsone DRAM for the OL600e, two DRAMs for the OL610ean EEPROM, a host interface circuit, and a mechanism driving circuit.

(1) Single chip CPU

The single chip CPU is a custom CPU (32-bit internal bus, 16-bit external bus, 25.54 MHz clock with input frequency from a 12.27 MHz clock) which incorporates the MIPS 3000 RISC CPU and its peripheral devices, and has the following functions:

Built-in device

Function

 

 

Chip select controller

Control of ROM DRAM and I/O device

Bus controller

 

DRAM controller

 

 

 

DMA controller

Transfer of image data from DRAM to video output port

 

 

Parallel interface controller

Control of Centronics parallel interface

 

 

Serial interface controller

Control of RS-232C serial interface

 

 

Video output port

Control of LED head

LED STB output port

 

 

 

Timer

Generation of various control timing signals

 

Monitoring of paper running and paper size

 

 

Serial I/O port

Control of operator panel EEPROM and options

 

 

I/O port

Input and output of sensor and motor signals

 

 

(2)Program & Font ROM OL600e/610e

The Program & Font ROM stores the equipment program and various types of fonts. EPROM or Mask ROM is used for a Program & Font ROM. The mounting location of this Program & Font ROM varies depending on the type of ROM (for the mounting location see 7.2).

OL610e/PS

The Program ROM & Font ROM store the HP4 emulation program and various types of fonts. Mask ROM is used for a Program & Font ROM.

(3)DRAM

OL600e/610e

The DRAM is a resident memory1MB in the OL600e, 2MB in the OL610eused as a buffer; it stores edited data, image data, DLL data, and macro data.

OL610e/PS

The DRAM is resident memory (2MB on the board plus 0.5MB on the PS board) used as a buffer; it stores edited data, image data, DLL data, and macro data. In PostScript mode, it is used as VM and font cache also.

(4) EEPROM

1,024-bit Electrically Erasable PROM (EEPROM), is loaded with the following data:

Menu data Various counter data (Page counter, Drum counter) Adjusting parameters (LED head drive time, print start position, paper feed length)

(5) Parallel Interface

Parallel data is received from the host system via parallel interface which conforms to the Centronics specification. IEEE 1284 spcification bi-directional parallel is supported.

OKI OL600/610ex (96-01-18

Page 15
Image 15
Oki OL610EPS, OL600E manual Control Board, Eeprom

OL600E, OL610E, OL610EPS specifications

The Oki OL610EPS, OL610E, and OL600E are advanced line matrix printers renowned for their high-performance capabilities and durable design. These printers are ideal for high-volume printing environments where reliability and speed are crucial. They are often employed in sectors like manufacturing, logistics, and large-scale enterprises that require efficient document processing.

One of the standout features of these models is their exceptional printing speed. The OL610EPS and OL610E can produce up to 1320 characters per second, while the OL600E offers a commendable output of up to 550 characters per second. This high-speed performance significantly boosts productivity, allowing businesses to handle large print runs with ease.

The printers incorporate Oki’s ribbon technology, which provides a longer ribbon life and reduces maintenance frequency. The OL610EPS boasts an impressive print head life, rated at 400 million characters, ensuring extended operation without the need for frequent replacements. This is particularly beneficial for businesses looking to minimize downtime and maximize efficiency.

Another key characteristic of the Oki OL610EPS, OL610E, and OL600E is their versatility in handling various media types. They can print on multi-part forms, labels, and envelopes, making them adaptable to a range of tasks. This multi-functionality is paired with a compact design, ideal for environments where space is limited.

In terms of connectivity, these printers feature various interfaces, including USB and parallel ports, ensuring compatibility with a wide range of systems. The OL610EPS and OL610E come equipped with advanced emulations such as IBM ProPrinter and Epson ESC/P, making integration into existing workflows seamless.

The durability of the Oki OL series is another notable attribute. Designed to withstand the rigors of continuous operation, these printers have robust construction that ensures longevity. The advanced thermal technology used in these models also contributes to lower power consumption, aligning with eco-friendly practices.

Furthermore, user-friendliness is a prominent aspect of Oki's design philosophy. The printers feature easy-access controls and a straightforward setup process, enabling quick operation and minimal training requirements for staff.

In conclusion, the Oki OL610EPS, OL610E, and OL600E line matrix printers stand out for their speed, versatility, and reliability. With advanced ribbon technology, robust construction, and user-friendly features, they are optimal solutions for businesses that demand efficient and high-quality printing capabilities.