Interface; Parallel Interface - Epson ActionLaser 1600 Reference Manual

Interface

Parallel interface

The parallel
interface signals are shown in the table
Signal Return
Pin Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Technical Spec@ations
A-6
connector pin assignments and a description of the

interface

Signal
19
20 DATA 1
DATA 2
DATA 3
23 DATA 4
24 DATA 5
DATA 6
25
26 DATA 7
27 DATA 8
28
29 BUSY
30 PE
- SLCT
below.
Direction Description
IN
Pulse width must be at least
0.5 trs at the receiving
terminal.
IN These signals represent
parallel data bits 1 to 8,
IN
respectively. Each signal is at
IN
HIGH level when data is
IN
IN logical 1 and LOW when it is
IN logical 0.
IN
IN
OUT About a 1-1O-µs pulse width.
LOW indicates data has
been received and the
printer is ready to accept
more data. The timing from
BUSY signal can be changed
by SelecType.
A HIGH signal indicates that
OUT
the printer cannot receive
data. The signal goes HIGH in
the following cases:
1. During printing
2. When off line
3. During
A HIGH signal indicates the
OUT
printer is out of paper.
Pulled up to +5V through
O U T
3.3 kQ resistance.
a
printer-error state