Signal
pin
Return
pin
Signal
Direction
Description
11
29
BUSY
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 and
default-setting printing
4) During a printer-error state
12
30
PE
OUT
A HIGH signal indicates the
printer is in a paper-out state
or in an error state
13
-
SLCT
OUT
Pulled up to +5 V through
1 k
Ω
resistance
14
-
AUTO
FEED
XT
IN
When this signal is LOW, the
paper is automatically fed
one line after printing
15
-
NC
-
Not used
16
-
GND
-
Logic ground level
17
-
CHASSIS
GND
-
Printer’s chassis ground,
which is connected to the
logic ground
18
-
NC
-
Not used
19-30
-
GND
-
Twisted-pair return signal
ground level
31
16
INIT
IN
When this signal goes LOW,
the printer controller is reset
to its state when the power is
first turned on and the print
buffer is cleared. This level is
normally HIGH; its pulse width
must be more than 50
µ
s at
the receiving terminal.
32
-
ERROR
OUT
This signal level goes LOW
when the printer:
1) Is out of paper
2) Is in an error state
3) Has no ink cartridges
installed
L
Verde+ Reference Guide
A5 size
Appendix B
10-25-95
DR, pass 2-Rev1
B-10
Technical Specifications
