Epson LX-810

Interface Specifications
Signal
Pin
Return
Pin
Signal
Direc
tion
Description
13
— —
—
Pulled up to -H 5 volts through 3.3K ohm
resistance.
14
AUTO
IN
When this signal is LOW, the paper is
automatically fed 1 line after printing.
(The signal level can be fixed to this by
setting DIP switch 2-4 to ON.)
FEED XT
15
— NO
—
Unused.
16
—
OV
—
Logic ground level.
17
—
CHASSIS
GND
—
Printer's chassis ground, which is
isolated from the logic ground.
18
—
NO
—
Unused.
19-30
—
GND
—
Twisted-pair return signal ground level.
31
wr
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 usually 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 19-30.
34
—
NO
—
Unused.
35
—
—
—
Pulled up to -1- 5V through 3.3K ohm
resistance.
36
SLOT IN
IN
The DC1/DC3 code is valid only when
this signal is "HIGH" (Internal fixing
can be carried out with Jumper J1. )
8-10 Technical Specification