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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 information
3
21
DATA 2
IN
of the 1st to 8th bits of parallel data,
4
22
DATA 3
IN
respectively. Each signal is at HIGH
5
23
DATA 4
IN
level when data is logical 1 and
6
24
DATA 5
IN
LOW when it is logical 0.
7
25 DATA 6
IN
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