Epson DFX-8000 User Manual - Page 254

signal. Data transfer to this printer occurs only after receipt

Page 254 highlights

Interface Specifications Signal Return Pin Pin 32 - 33 - 34 - 35 - 36 - Signal Oirection Description ERROR OUT GND - NC - - - SLCTIN I N This level becomes LOW when the printer is: 1) out of paper 2) off tine 3) in a printer error state Same as for pins 19 - 30. Not used. Pulled up to +5V through 3.3K ohm resistance. The DClIDC3 code is valid only when this hignal is HIGH. (Internal fixing is possible with jumper Jl.) l All interface conditions are based .on TTL level. Both the rise and the fall times of each signal must be less than 0.2 microseconds. l Data transfer is carried out by observing the ACKNLG or BUSY signal. Data transfer to this printer occurs only after receipt of the ACKNLG signal or when the level of the BUSY signal is LOW. l The column heading "Direction" refers to the direction of signal flow as viewed from the printer. l "Return" denotes the twisted-pair return to be connected at signal ground level. For 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 8-13

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Interface
Specifications
Signal Return
Pin
Pin
Signal
Oirection
Description
32
-
ERROR
OUT
This level becomes LOW when the
printer is:
1)
out of paper
2)
off tine
3)
in
a
printer error state
33
-
GND
-
Same as for pins
19
-
30.
34
-
NC
-
Not used.
35
-
-
-
Pulled up to
+5V
through
3.3K
ohm
resistance.
36
-
SLCTIN
I N
The
DClIDC3
code is valid only when
this
hignal
is HIGH. (Internal fixing is
possible with jumper
Jl.)
l
All interface conditions are based
.on
TTL
level. Both the rise and
the fall times of each signal must be less than
0.2
microseconds.
l
Data transfer is carried out by observing the
ACKNLG
or BUSY
signal. Data transfer to this printer occurs only after receipt of
the
ACKNLG
signal or when the level of the BUSY signal is
LOW.
l
The column heading “Direction” refers to the direction of signal
flow as viewed from the printer.
l
“Return” denotes the twisted-pair return to be connected at
signal ground level. For 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
8-13