Interface Specifications
Signal Return
Pin
Pin
Signal
Direction
Description
35 -
+5v -
Pulled up to 5V through 3.3K ohm
resistance.
36
-
SLCTIN IN
The DC1/DC3 control codes are valid
only when this signal is HIGH (SLCTIN
set to OFF). This setting can be changed
with SelecType. Sampling is carried out
only when the power is on.
Notes:
l
All interface conditions are based on TTL level. Both the rise
and fall 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 the 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. These cables should be
shielded and connected to the chassis of the host computer
and the printer.
Technical Specifications
8-11
Summary of Contents for EPL-7000
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