Interface Specifications
Your printer is equipped with a parallel interface.
Pin assignments for the parallel interface
Connector pin assignments and a description of their respective
interface signals are shown in the following table.
Signal
Return
Pin
Pin
Signal
Direction
Description
1
19
STROBE
IN
STROBE pulse to read data.
Pulse width must be more than
0.5 microseconds at the
receiving terminal.
2
20
DATA 1
IN
These signals represent
3
21
DATA 2
IN
information of the 1st to 8th bits
4
22
DATA 3
IN
of parallel data, respectively.
5
23
DATA 4
IN
Each signal is at HIGH level
6
24
DATA 5
IN
when data is logical 1 and LOW
7
25
DATA 6
IN
when it is logical 0.
8
26
DATA 7
IN
9
27
DATA 8
IN
10
28
ACKNLG
OUT
About an 11 -microsecond pulse.
LOW indicates that data has
been received and that the
printer is ready to accept more
data.
11
29
BUSY
OUT
A HIGH signal indicates that the
printer cannot receive data. The
signal goes HIGH in the following
cases:
1) During data entry
(ea. char. time)
2) During printing
3) When off line
4) During printer-error state
12
30 PE
OUT
A HIGH signal indicates that the
printer is out of paper.
Technical Specifications
5-7
