Epson PRO - Interface Specifications; Parallel Interface; Pin Assignments

Interface Specifications
Your printer is equipped with an 8-bit parallel interface and a serial
interface.
Parallel Interface
Data format: 8-bit parallel, IEEE P1284 mode compatible
Synchronization:
STROBE pulse
Handshake timing: BUSY and
ACKNLG signals
Signal level: TTL compatible
Connector: 36-pin, Centronics compatible
Pin assignments
Signal
pin
Return
pin Signal Direction Description
119
STROBE IN STROBE pulse to read data.
2
3
4
5
6
7
8
9
20
21
22
23
24
25
26
27
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
DATA 8
IN
IN
IN
IN
IN
IN
IN
IN
These signals represent
information in bits 0 to 7 of
parallel data respectively.
Each signal is at HIGH level
when data is logical 1 and
LOW when it is logical 0.
10 28
ACKNLG OUT About a 5-µs pulse. LOW
indicates data has been
received and the printer is
ready to accept more data.
R
Verde+ Reference Guide
A5 size Appendix B
10-25-95 DR, pass 2-Rev1
Technical Specifications B-9