Interface Specifications; Parallel Interface - Epson Stylus 1520 User Manual

Interface Specifications

Your printer is equipped with an 8-bit parallel interface.

Parallel interface

The built-in parallel interface has the following characteristics:
Forward channel
Data format:
Synchronization:
Handshake timing:
Signal level:
Connector:
Pin assignments
The parallel interface connector pin assignments and a description of the
interface signals are shown in the table below.
Signal Return
Pin Pin
1
2
3
4
5
6
7
8
9
10
C-14
Specifications
8-bit parallel, IEEE-1284 compatibility mode
STROBE pulse
BUSY and ACKNLG signals
TTL compatible (IEEE-1284 level 1 device)
36-pin 57-30360 Amphenol connector or
equivalent
Signal
19 STROBE
20 DATA 0
21 DATA 1
22 DATA 2
23 DATA 3
24 DATA 4
25 DATA 5
26 DATA 6
27
DATA 7
ACKNLG
28
Direction Description
IN STROBE pulse to read data.
IN These signals represent
IN information in bits 0 to 7 of
IN parallel data respectively.
IN Each signal is at HIGH level
IN when data is logical 1 and
IN LOW when it is logical 0.
IN
IN
OUT About a 5- s pulse. LOW
indicates data has been
received and the printer is
ready to accept more data.