Specifications

Signal Return
Pin Pin Signal Direction Description
19-30 - GND - Twisted-pair return signal
ground level.
31 -
NC
-
Not used
32 - ERROR OUT This signal level goes LOW
when the printer is:
1, Out of paper
2. In on error state
33 -
GND -
34 - NC
-
35 - +5v
-
36 - SLCTIN
IN
Some as for Pins 19-30
Not used
Pulled up to +5 V through
3.3 resistance.
Available only for
bidirectional use.
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 puke width varies.
Technical Specifications A-7