Epson LQ-2170 User Manual page 134

Pin Signal
no. name
13 SLCT
14 AFXT
31 INIT
32 ERROR
36 SLIN
18 Logic H
35 +5V
17 Chassis
16,33, GND.
19-30
15,34 NC
* In/Out shows the direction of signal flow as viewed from the printer.
Parallel interface (reverse channel)
Transmission mode:
Adaptable connector:
Synchronization:
Handshaking:
Signal level:
Data transmission
timing:
A-14
Specifications, Command Summary, and Character Tables
GND In/Out
28 Out
30 In
30 In
29 Out
30 In
- Out
- Out
- -
- -
- -
IEEE-1284 nibble mode
57-30360 (Amphenol) or equivalent
Refer to IEEE-1284 specifications
Refer to IEEE-1284 specifications
IEEE-1284 level 1 device
Refer to IEEE-1284 specifications
Description
Always HIGH when the printer
is on.
Not used.
Set LOW to initialize the printer.
This signal is LOW when the
printer is in an error state.
Not used.
This line is pulled up to +5V
through 3.9 k resistance.
This line is pulled up to +5V
through 3.3 k resistance.
Chassis GND.
Signal GND.
Not connected.