Pin Assignments - Epson Stylus Color Stylus Color IIs User Manual

Pin Assignments

Signal Return
pin pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19-30
A-10
Technical Specifications
Signal
19 STROBE
20 DATA 1
21 DATA 2
22 DATA 3
23 DATA 4
24 DATA 5
25 DATA 6
26 DATA 7
27 DATA 8
28 ACKNLG
29 BUSY
28 PE
28 SLCT
30
AFXT
- NC
- GND
- CHASSIS
GND
- Logic H
- GND
Direction Description
IN STROBE pulse to read data.
IN These signals represent
IN information in bits 0 to 7 of
IN parallel data respectively.
IN Each signal is at HIGH level
IN when data is logical 1 and
IN LOW when it is logical 0.
IN
IN
OUT About a 5- s pulse. LOW
indicates data has been
received and the printer is
ready to accept more data.
OUT A HIGH signal indicates the
printer cannot receive data.
The signal goes HIGH in the
following cases:
1) During data entry
(for each character)
2) During initialization
3) During self test,
demonstration, and
default setting printing
4) During a printer-error state
OUT A HIGH signal indicates the
printer is in a paper-out state
or in an error state.
OUT Pulled up to +5 V through
1 k resistance
IN Not used
- Not used
- Logic ground level
- Printer's chassis ground,
which is connected to the
logic ground
OUT Not used
- Twisted-pair return signal
ground level