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Signal Return
Pin
Pin
35
36
Note
• The column heading Direction refers to the direction
of signal flow as viewed from the printer.
• All interface conditions are based on TTL level. Both
the rise and fall of each signal must be less than 0.2
µseconds.
Signal
Direction
OUT
SLCT IN
IN
Description
Pulled up to +5 V through 3.3
K W resistance.
The DC1/DC3 code are valid
only when this signal is
high. (This signal can be fixed
low by changing a DIP switch,
jumper, or SelecType setting on
the printer.) The printer
monitors this signal, so this
signal's function depends on
the printer's specifications.
14
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