Signal
Pin
Return
Pin
Signal
Direction
Description
11
29
BUSY
OUT
A HIGH signal indicates that the printer
cannot receive data. The signal goes
HIGH in the following cases:
• During data entry (each char. time)
•
When off line
•. During printer-error state
12
30
PE
OUT
A HIGH signal indicates that the printer is
out of paper.
13
SLCTOUT OUT
All time HIGH
14
AUTO
FEED
IN
Not used
15
NC
16
GND
CHASSIS
GND
Logic ground level.
Printer’s chassis ground, which is
connected with the logic ground.
17
18
NC
Not used
GND
Twisted-pair return signal ground level.
19-30
31
INIT IN
When this signal goes LOW, the printer
operates as same as the printer receives
Ctrl-C and Ctrl-D.
This level becomes LOW when the printer
is
l
in paper-out state
• in error state
• off line
ERROR
OUT
32
33
GND
Same as for Pins 19-30.
34
NC
Not used.
Technical Specifications
8-11
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