Interface Specifications; Pin Assignments For The Parallel Interface - Epson LQ-1010 User Manual

Interface Specifications

Your printer is equipped with an S-bit parallel interface. For
specifications on optional interfaces, refer to their manuals.

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
1
19
2
20
21
3
4
22
5 23
24
6
7
25
8 26
9 27
10 28
11 29
12 30
Technical Specifications
8-8
Signal Direction Description
STROBE IN
IN
DATA 1
IN
DATA 2
IN
DATA 3
DATA 4 IN
IN
DATA 5
IN
DATA 6
DATA 7 IN
DATA 8 IN
ACKNLG OUT
BUSY OUT
PE OUT
STROBE pulse to read data. Pulse width
must be more than 0.5 microseconds at
the receiving terminal.
These signals represent information of the
1st to 8th bits of parallel data,
respectively. Each signal is at HIGH level
when data is logical 1 and LOW when it is
logical 0.
About an 11-microsecond pulse. LOW
indicates that data has been received and
that the printer ready to accept more
IS
data.
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
A HIGH signal indicates that the printer is
out of paper.