Epson LQ-2070 User Manual page 137

Pin Signal
no. name
14 AFXT
31 INIT
32 ERROR
36 SLIN
18 Logic H
35 +5 V
17 Chassis
16, 33 GND
19-30
15, 34 NC
* In/Out shows the direction of signal flow from the printer's point of view.
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*
30 In
30 In
29 Out
30 In
- Out
- Out
- -
- -
- -
IEEE-1284 nibble mode
57-30360 (Amphenol) or equivalent
Refer to the IEEE-1284 specification
Refer to the IEEE-1284 specification
IEEE-1284 level 1 device
Refer to the IEEE-1284 specification
Description
Not used.
This signal's negative pulse initializes the
printer.
This signal's low level means an error has
occurred.
Not used.
This line is pulled up to +5 V through
3.9 k resistor.
This line is pulled up to +5 V through
3.3 k resistor.
Chassis GND.
Signal GND.
Not connected.