46
11
BUSY
Out
HIGH level signal indicates that the
printer is BUSY and can not receive
data.
12
PE
Out
HIGH level signal indicates that
paper is end.
13
SEL
Out
Pulling up to HIGH level signal by a
resistor indicates the printer is
online.
15
/ERR
Out
Pulling up to HIGH level signal by a
resistor indicates there is no error.
14,16,17
NC
---
No connection
19-25
GND
---
Grounding logical 0 level
Note:
（
1
）
“In” denotes inputting to the printer, “Out” denotes outputting from the
printer.
（
2
）
Signal level is TTL standard.
Fig. Pin Assignment of Parallel Interface
DB36 Parallel interface connector PIN assignment
DB-36 Parallel PIN assignment:
Pin No.
Signal
Direction
Description
1
/STB
In
Strobe pulse to latch data, reading
occurs at raising edge.
2
3
4
5
6
7
8
9
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
In
In
In
In
In
In
In
In
These signals represent the 1st bit
to 8th bit of the parallel interface
data, each signal is at HIGHT level
when data is logic 1, and LOW
when data is logic 0.
10
/ACK
Out
Answer pulse, LOW level signal
indicates that data have already
been received and the printer gets
ready to receive the next data.
11
BUSY
Out
HIGH level signal indicates that the
printer is BUSY and can not receive
data.
