Pin
Name
Direction
Description
of Signal
10
ACKNLG/N
Output
This signal indicates that the printer is ready to
receive data. Under normal conditions, it is “high”
and goes to"low" for about 10us.
11
BUSY
Output
This signal indicates whether the printer can receive
data or not. BUSY = “high” indicates that the printer
cannot receive any data.
BUSY = “low” indicates that the printer is ready to
receive data.
12
PE
Output
This signal indicates whether paper is available or
not. “High” indicates the paper end; “Low” indicates
that paper is available.
13
SELECT
Output
If DIP switch 1 is “on”, this signal indicates whether
the cover is open.
“High” means that the cover is closed; “Low”, that
the cover is open.
If DIP switch 1 is “off”, this signal indicates which
interface to the system is active.
“HIGH” indicates that the parallel interface is active;
“LOW” indicates that the serial interface is active.
14
AUTOFEED/N Input
If this signal is at “Low”, an automatic line feed is
executed in conjunction with the command CR, but
only when DIP switch 2 is “on”.
15
NC
not used
16
GND
Signal Ground
17
CHASSIS-GND
Chassis earth connection, only to the printer
housing, not connected to the signal ground
18
NC
not used
19-30 GND
Signal Ground
Interfaces
Appendix
GB - 86
