Specifications

Appendix E  Accessory Cable & Parallel Interface
The parallel interface port is a standard 36 pin Amphenol type
with two metal wire retaining clips.
Parallel
Communication
(Centronics
Cable)
Pin # Signal Direction Description
1 Strobe In A Low pulse causes the printer
to read one byte of data
2-9 Data 0 -Data7 In Data lines. Data 0 is the LSB
10 Acknowledge Out The printer sends a low pulse to
indicate that it has accepted a
byte of data and is ready for
more.
11 Busy Out The printer sends a High to
indicate that it cannot receive
data to data entry, a full buffer.
12 Paper Error Out The printer sends a High logic
level to indicate to the computer
that it is out of paper.
13 On Line Out The printer sends a High logic
level to indicate to the computer
that it is in an On Line status.
16 Sig Gnd These pins are tied to signal
ground
17 Chassis Gnd Chassis Ground
18 HI Out The printer outputs a High logic
level (+5V through a 2.2K ohm
resister) on this pin while it is
turned on.
19-30 Sig Gnd In Signal Interface Ground
31 Reset /Input
Prime
The printer may not work when
this line is low.
32 Error Out The printer sends a Low logic
level to the printer to indicate
that it is in an error state.
Data 6
Data 5
Data 4
Data 3
Data 2
Data 1
Revision C 30K USERS MANUAL Section E -
P/N 90-00203-001
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