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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)
out of paper
2)
in an error state
33
-
34
-
35
-
GND
NC
-
-
OUT
Same as for pins
19-30
Not used
Pulled up to 5
V
through
1
.O
k.Q
resistance
^
-
NC
Not used
l-
Note:
0
The column heading ‘Direction” refers to the direction of signal flow as
viewed from the printer.
0
“Return” denotes the twisted-pair return, to be connected at signal
ground level. For the interface wiring, be sure to use a twisted-pair
cable for each signal and to complete the connection on the return
side.
CT
All interface conditions are based on the
TTL
level. Both the rise and fall
times of each signal must be less than 0.2 microseconds.
Appendix A-9