Datasheet
44895L Rev. 3 3/12/04 S400/S600 Maintenance Manual Page 1-13
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Table 1-9. Centronics Connector Pinouts
36-Pin
Connector
Description
1
STROBE — The high to low transition of this input signal latches the data at the
eight DATA inputs into the printer.
2–9
DATA BITS 0 through 7 — Parallel data inputs to the printer. TTL input level HIGH
(+5 V) corresponds to a Logic 1; level LOW (0 V) to a Logic 0.
10
ACKNOWLEDGE — This printer output is an active LOW pulse indicating that
the printer has received the previous character and is ready to accept another
data character.
11 BUSY — This printer output is active HIGH whenever it cannot accept data.
12
ERROR — This output signal is active HIGH whenever the printer is out of paper
or ribbon.
13
SELECT — The function of this output signal is determined by a printer
configuration. In the default condition, SELECT is active HIGH whenever the
parallel port is on and enabled.
14 AUTOFEED — Not used
15, 33, and
34
Not used
16, 19–30
SIGNAL GROUNDS — The logic grounds and returns for all input and output
signals.
17 Chassis ground (for cable shield connection)
18 +5V fused output, 1 amp max.
31 INITIALIZE (Reset) — Not used
32
FAULT — This printer output is active LOW whenever any of the following error
conditions are present: Head Open, Head Too Hot, Paper Out, Ribbon Out, or
Rewind Full (if optional rewind is used).
35 +5V resistive.
36 SEL IN — Connected but not used.