Epson EPL-7500, User Manual

Page: 185 / 244

Signal
Pin
Return
Pin
Signal Direction
Description
11 29 BUSY
O U T A HIGH signal indicates that the printer
cannot receive data. The signal goes
HIGH in the following cases:
• During data entry (each char. time)
•
When off line
•. During printer-error state
12 30 PE O U T A HIGH signal indicates that the printer is
out of paper.
13 SLCTOUT O U T
All time HIGH
14
AUTO
FEED
IN
Not used
15
NC
16
GND
CHASSIS
G N D
Logic ground level.
Printer’s chassis ground, which is
connected with the logic ground.
17
18
NC
Not used
G N D Twisted-pair return signal ground level. 19-30
31 INIT
IN
When this signal goes LOW, the printer
operates as same as the printer receives
Ctrl-C and Ctrl-D.
This level becomes LOW when the printer
is
l
in paper-out state
• in error state
• off line
ERROR
OUT
32
33
G N D Same as for Pins 19-30.
34
NC
Not used.
Technical Specifications
8-11