Signal

 

Return

 

 

 

 

 

 

Pin

 

Pin

Signal

oniectDri

Description

 

 

 

 

 

 

 

 

 

13

-

SLCT

OUT

Pulled up to +5 volts through 3.3 Kohm

 

 

 

 

 

 

 

 

resistance.

 

 

 

 

 

 

 

 

 

14

-

 

 

 

 

 

 

A u t o

IN

When this signal is LOW, the paper is

 

-

FEED

 

 

 

automatically fed 1 line after printing.

 

-

-

 

 

 

 

(The signal level can be fixed to this by

 

XT

 

 

 

 

 

 

 

 

 

 

 

setting DIP switch 2-4 to on.)

15

 

 

 

-

 

 

 

 

 

NC

 

 

Not used.

 

 

 

 

-

 

 

 

16

 

 

GND

 

 

Logic ground level.

 

 

-

 

-

 

 

 

17

 

CHASSIS

 

 

Printer’s chassis ground, which is

 

-

GND

-

 

 

isolated from the logic ground.

18

-

NC

-

 

 

 

 

 

Not used.

 

 

 

-

 

 

 

19-30

-

GND

 

 

Twisted-pair return signal ground level.

 

 

 

 

 

 

31

16

INIT

IN

When this level becomes LOW, the

 

 

 

 

 

 

 

 

printer controller is reset to its power-up

 

 

 

 

 

 

 

 

state and the print buffer is cleared. This

 

 

 

 

 

 

 

 

level is normally HIGH; its pulse width

 

 

 

 

 

 

 

 

must be more than 50 microseconds at

 

 

 

 

 

 

 

 

the receiving terminal.

 

 

 

 

 

 

32

-

 

 

 

 

ERROR

OUT

This level becomes LOW when the

 

 

 

 

 

 

 

 

printer is:

 

 

 

 

 

 

 

 

1) in paper out state.

 

 

 

 

 

 

 

 

2) off line.

 

 

 

 

 

 

 

 

3) in error state.

 

-

 

-

 

 

 

33

GND

 

 

Same as for Pins 1 Q-30.

 

-

NC

-

 

 

 

34

 

 

Not used.

 

-

-

 

 

 

 

35

 

OUT

Pulled up to 5V through 3.3 Kohm

 

 

 

 

 

 

 

 

resistance.

 

-

 

 

 

 

 

36

 

IN

 

SLCT IN

The DC1/DC3 code is valid only when

 

 

 

 

 

 

 

 

this signal is HIGH. (Internal fixing can

 

 

 

 

 

 

 

 

be carried out with Jumper J10. The

 

 

 

 

 

 

 

 

level of this signal is factory-set to

 

 

 

 

 

 

 

 

LOW.)

 

 

 

 

 

 

 

 

 

8-10 Technical Specifications