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
1
19
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-
µ
s 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
