User's Manual

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DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
Input
Input
Input
Input
Input
Input
Input
information from the first to eighth bits. For
each signal, when the logic is “1” indicates “high
level”, when the logic is “0” indicates “low level”.
10 /ACK Output
For responsion pulse, “low” level indicates that
the printer has accepted the data and be ready
for accepting next data.
11 BUSY Output
“High” level indicates that the printer is “busy”
and can not accept data now. “Low” level
indicates “idle”.
12 PE Output
Drop down to “Low” level with resistance,
“High” level indicates paper end.
13 SEL Output
Full up to “High” level with resistance and the
“High” level indicates the printer is online.
15 /ERR Output
Full up to “High” level with resistance and the
“High” level indicates no error.
14 /AUTOFD Input Auto paper feed
16 /INIT Input Initialize the printer
17 /SELIN Input online
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GND --- GND，logic “0” level
(1) “Input” indicates inputting signals to printer; “Output” indicates outputting signals from printer.
(2) The average logic level of signal is TTL level.Signal Timing Diagram for parallel interface as shown
below：