Section 5: Interface Specifications

5.20 IEEE 1284 INTERFACE

The IEEE 1284 Interface on the printer complies with IEEE1284 standards.

The ECP mode is recommended for LPT1 port settings.

Make sure to change the LPT1 port settings through the BIOS settings.

Basic Specifications

Interface board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connector

Printer

Amphenol (DDK) 57 to 40360 (Equivalent)

 

Cable

Amphenol (DDK) 57 to 30360 (Equivalent)

 

Cable length

Under 3 meters

 

Signal level

High level

: + 2.4 to + 5.0 V

 

 

Low level

: - 0.0 to – 0.4 V

 

Communication settings

One item or Multi communication can be selected using DSW2-5.

 

 

 

 

 

 

 

 

 

 

 

 

 

DIPSW2-5

Set Range

 

 

 

 

 

 

 

ON

Multi-reception

 

 

 

 

 

 

 

OFF

One Item

 

 

 

 

 

 

 

 

 

 

 

Maximum Receive buffer

2.95Mbyte

 

 

 

 

capacity

 

 

 

 

 

0Mbyte

 

 

2.95Mbyte

 

 

Near full

 

 

 

 

 

 

 

 

 

 

 

Remain. 0.95Mbyte

 

 

Near full clear

 

 

 

 

 

 

 

 

 

 

 

Remain. 1.95Mbyte

 

 

 

 

 

 

 

Timing chart

 

 

 

 

ECP mode

Centronics compatible mode

 

 

 

 

 

 

T1 T2

T1 T2

T3

 

 

DATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STROBE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACK

 

 

 

 

 

 

BUSY

 

 

 

 

 

 

 

 

* 1µs < T1, T2

 

 

 

 

 

 

 

0.6µs < T3 < 1.2µs

 

 

 

 

 

 

 

* It is possible to set the ACK width settings (0.5 – 10 µs) in the Advanced

 

 

 

 

mode, in the case of One Item reception.

 

 

 

 

 

 

 

 

 

 

 

Page 5-40

GT Series Operator’s Manual

Page 122
Image 122
SATO GT424 manual Ieee 1284 Interface, Maximum Receive buffer 95Mbyte Capacity, Timing chart