Epson ActionLaser 1400 Reference Manual page 61

Epson actionlaser 1400: user guide
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Return
Signal
Pin
Pin
19-30
31
32
33
34
35
3 6
Note:
All interface conditions are based on TTL level. Both the rise and fall times of
each signal must be less than 0.2 microseconds.
Data transfer must be carried out by observing the ACKNLG or BUSY
signal. (Data transfer to this printer can be carried out only after receipt of
the ACKNLG signal or when the level of the BUSY signal is LOW.)
The column heading "Direction" refers to the direction of signal flow as
viewed from the printer.
Return denotes the twisted-pair return to be connected at signal ground
level. For the interface wiring, be sure to use a twisted-pair cable for each
signal and to complete the connection on the return side.
The ACKNLG pulse width varies.
Direction
Signal
GND
NC
Out
ERROR
GND
NC
+5V
IN
SLCTIN
Description
Twisted-pair return signal
ground level.
Not used
This signal level goes LOW
when the printer is:
1. Out of paper
2. In an error state
Same as for Pins 19-30
Not used
Pulled up to +5 V through
3.3 K
resistance.
Available only for
bidirectional use.
Technical Specifications
A-7

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