Interface Specifications - WeP LQ540DX User Manual

INTERFACE SPECIFICATIONS:

Parallel Interface:
respective interface signals are shown below:
Pin Signal
1 STROBE
2 DATA 0
3 DATA 1
4 DATA 2
5 DATA 3
6 DATA 4
7 DATA 5
8 DATA 6
9 DATA 7
10 ACKNLG
11 BUSY
12 PE
Connector pin assignments and a description of their
Direction Description
IN STROBE pulse to read data.
Pulse width must be more
than 0.5 µS at the receiving
terminal.
IN These signals represent
information of the 1
bits of parallel data, resptly.
Each signal is at HIGH level
when data is logical 1 and
LOW when it is logical 0.
IN
IN
IN
IN
IN
IN
IN
OUT About an 11-microsec. pulse
LOW indicates that data has
been received and that the
printer is ready to accept
more data.
OUT HIGH A signal indicates that
the printer cannot receive
Data. The signal goes high
in the following cases:
1. During data entry
2. During printing
3. When off line
4. During printer-error state
OUT A HIGH signal indicates that
the paper is not present.
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