Epson TM-U590 Technical Reference Guide

54
IEEE 1284 Parallel Interface
Modes
The IEEE 1284 parallel interface supports the following two modes.
Compatibility Mode
Compatibility mode allows data transmission from host to printer only: Centronics-compatible.
Specification
Reverse Mode
The transfer of status data from the printer to the host proceeds in the nibble or byte mode.
This mode allows data transfer from an asynchronous printer under the control of the host. Data
transfers in the nibble mode are made via the existing control lines in units of four bits (a nibble).
In the byte mode, data
transfer proceeds by making the 8-bit data lines bidirectional. Both modes
fail to proceed concurrently in the compatibility mode, thereby causing half-duplex
transmission.
Mode Communication direction Other information
Compatibility mode Host → Printer communication Centronics-compliant
Reverse mode Printer → Host communication Assumes a data transfer from an
asynchronous printer
Data transmission 8-bit parallel
Synchronization Externally supplied STROBE signals
Handshaking ACK
and BUSY signals
Signal levels TTL-compatible connector
Connector ADS-B36BLFDR176 (HONDA) or equivalent product
Reverse communication Nibble or byte mode

Epson TM-U590 Specifications

General

Color	No
Maximum number of copies	4 copies
Maximum print size	A4 (210 x 297 mm)
Media thickness	0.09 - 0.36 mm
Dimensions (WxDxH)	252 x 266 x 185 mm
Power requirements	24 DVC± 10%
Connectivity technology	Wired
Safety	UL / C-UL / TUV
Certification	VCC # 1, FCC class A, CE
Country of origin	China
Pallet width	1200 mm
Pallet height	1000 mm
Pallet length (UK)	2600 mm
Quantity per pallet	6 pc(s)
Quantity per pallet (UK)	56 pc(s)
Harmonized System (HS) code	84433210
Quantity per pallet layer (UK)	8 pc(s)
Package depth	333 mm
Package width	322 mm
Package height	253 mm
Package weight	5725 g
Quantity per pack	1 pc(s)

Weight and Dimensions

Depth	266 mm
Width	252 mm
Height	185 mm