User's Manual
Pin Return
Signal
No. Pin No.
name
13
–
Select
(SLCT)
14
–
Auto Feed XT
15
–
–
16
–
Signal Ground
17
–
Frame Ground
18
–
+5V
19–
–
Signal Ground
30
31
–
Input Prime
(INPRM)
32
–
Fault
33
–
Signal Ground
34
–
–
35
–
+5 VR
36
–
SLCT-IN
INTERFACE INFORMATION
Direc-
Description
tion
Output This signal is high when the
printer is online.
Input
Not used
–
No connection
–
Logic ground level (0 V)
–
Printer chassis ground line. FG
and SG are connected.
Output +5 V source (up to 300 mA)
–
Twisted pair return lines
Input
If this signal is low for more
than 50 µs, the printer is reset to
the initial condition and is placed
online.
Output This signal is low when the
printer is offline, paper is out, or
when there is a printer error.
–
Logic ground level (0 V)
–
No connection
Output Pulled up to +5 V through a
3.3 ký resistor
Input
Not used
D-3