Epson LX-810 User Manual page 103

Interface Specifications
r
32 --
--
33
34 --
--
35
36 --
7-8 Technical Specification
ERROR
OUT
GND --
NC --
__
OUT
SLCT IN IN
(Can be fixed LOW by setting DIP SW
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 µsec at the receiving terminal.
Becomes LOW when the printer is:
1) in the paper out state.
2) off line.
3) in error state.
Same as for Pins 19-30.
Unused.
Pulled up to +5 V through 3.3 K
Can be internally fixed with jumper J1.
The level of this signal is set LOW at
the factory.