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Pin No.
Signal
Name
10 KCK
Direction Function
OUT
5-Microsecond
Low pulse acknowledees receipt of data.
11
12
BUSY
PAPER
OUT
OUT
OUT
Low when the printer is ready to accept
data.
Goes High if the printer runs out of paper.
Can be held Low permanently by turning
DIP switch l-5 off.
13 SELECTED OUT
14-15 N/C
16 SIGNAL
GND
High when the printer is on-line.
Unused
Signal ground.
17
18
19-30 GND
CHASSIS
31 m IN
GND
32 -
+ SVDC
OUT
OUT
Twisted pair return signal ground level.
Printer’s chassis ground, isolated from
Low input resets the printer to its power-up
condition.
signal ground.
Goes Low to signal that the printer cannot
mint due to an error condition.
External SUDD~Y of + SVDC.
33 EXT GND
External ground.
34, 35 N/C
Unused.
36 SELECT IN IN
Always High.