Epson FX-286e User Manual page 160

Table F-1. Pins and signals continued
Signal
Return
Pin
29
1 1
12 30
13
14
15
16
17
18
19-30
31
-
32
33
34
35
36
Notes:
1. The column heading "Direction" refers to the direction of signal
flow as viewed from the printer.
F - 4
Direc-
Signal
t i o n
BUSY OUT
PE
OUT
AUTO FEED
XT
NC
O V
CHASSIS
GND
NC
GND
INIT
OUT This level becomes LOW when the
ERROR
GND
NC
-
SLCT IN
A HIGH signal indicates that the
printer cannot receive data. The signal
goes HIGH in the following cases:
1) During data entry (ea. char. time)
2) During printing
3) When Off-Line
4) During printer-error state
A HIGH signal indicates that the
printer is out of paper.
Pulled up to + 5 volts through 3.3K
ohm resistance.
When this signal is LOW, the paper is
IN automatically fed 1 line after printing.
(The signal level can be fixed to this by
setting DIP switch 2-4 to ON.)
Unused.
Logic around level
Printer's chassis ground, which is
isolated from the logic around.
Unused
Twisted-pair return signal ground level.
When this level becomes LOW the
IN
printer controller is reset to its power-
up state and the print buffer
cleared. This level
pulse width must be more than 50
microseconds at the receivinq
terminal.
printer is in:
1) Paper-end state
2) Off-line.
3) Error state.
Same as for Pins 19 - 30.
Unused.
Pulled up to + 5V through 3.3K ohm
resistance.
The DC1/DC3 code is valid only when
IN
this signal is "HIGH".
Technical Specifications
Description
IS
usually HIGH: its
IS