Pin no.

Signal name

GND

In/Out

Description

 

 

 

 

 

16, 33,

GND

-

-

Signal GND.

19-30

 

 

 

 

 

 

 

 

 

15 ,34

NC

-

-

Not connected.

 

 

 

 

 

Note:

The column heading “In/Out” refers to the direction of signal flow as viewed from the printer.

Timing chart

BUSY

ACKNLG

DATA

STROBE

0.5 μs (Min.)

0 μs (Min.)

5 μs (Typ.)

0 μs (Min.)

Transition time (the rise and the fall) of every signal must be less than 0.2 μs.

Serial Interface

The printer’s built-in serial interface is based on the RS-422 standard so you can connect the printer to an Apple Macintosh.

Standard:

Based on RS-422

Synchronization:

Asynchronous

Bit rate:

57.6 Kbps/230.4 Kbps

Handshaking:

DTR protocol

A-14Technical Specifications