Epson LQ-950 User Manual - Page 282
Same as for Pins 19-30., in error state.
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19-30 - GND 31 16 INIT 32 - ERROR 33 - GND 34 - NC 35 - - 36 - SLCT IN IN OUT OUT IN Twisted-pair return signal ground level. 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. This level becomes LOW when the printer is: 1) in paper out state 2) off line 3) in error state. Same as for Pins 19-30. Not used. Pulled up to 5V through 3.3 Kohm resistance. The DC1/DC3 code is valid only when this signal is HIGH. (Internal fixing can be carried out with Jumper J1. The level of this signal is factory-set to LOW.) Technical Specifications 8-11
19-30
-
GND
-
31
16
INIT
IN
Twisted-pair return signal ground level.
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 19-30.
34
-
NC
-
Not used.
35
-
-
OUT
Pulled up to 5V through 3.3 Kohm
resistance.
36
-
SLCT IN
IN
The DC1/DC3 code is valid only when
this signal is HIGH. (Internal fixing can
be carried out with Jumper J1. The level
of this signal is factory-set to LOW.)
Technical Specifications
8-11