Epson U220B - TM Two-color Dot-matrix Printer Technical Reference Guide

2-6 System Planning Rev. D
2.2 Connection Form and Cables
2.3 Serial Connection
When the TM printer is connected to the host PC with a serial interface, the following connection
forms are possible:
• Stand alone
• Y-connection
• Pass-through connection
Connections for usable serial cross cables are as follows:
The type of cable that should be used depends on the operation and the handshake method for
the TM printer. You can operate the TM printer by Windows driver, OPOS, or ESC/POS
commands. XON/XOFF, DTR/DSR, or RTS/CTS are available as handshake controls. See tables
in following sections for the type cable for each connection.

Epson U220B - TM Two-color Dot-matrix Printer Specifications

General

Print Method	9-pin, serial impact dot matrix
MTBF	180, 000 hours
Weight	Approx. 2.5 kg
Data Buffer	4 KB or 40 bytes
Paper Handling	Friction feed
Character Set	95 Alphanumeric, 128 x 12 Graphic
Paper Dimensions	58, 70, 76 mm
Interface	USB, Serial (RS-232C), Parallel (IEEE-1284)
Reliability	18 million lines
Dimensions	160 (W) x 248 (D) x 139 (H) mm
Inked Ribbon	ERC-38
Color Support	Two-color printing (Black and Red)
Print Speed	4.7 LPS (lines per second) at 40 columns, 6.0 LPS at 30 columns
Character Size	1.2 × 3.1 mm (W × H) / 1.6 × 3.1 mm (W × H)