Epson Stylus 300 User Manual page 78

Signal Return
Pin Pin
CHASSIS
Direction
BUSY OUT
OUT
OUT
AUTO IN
FEED
XT
N C
N C
IN
INIT
Description
A HIGH signal indicates the
printer cannot receive data.
The signal goes HIGH in the
following cases:
e a c h
character)
pressed
A HIGH signal indicates that
the printer is out of paper.
Pulled up to 5 V through
1 .O kR resistance
When this signal is LOW, the
paper is automatically fed
one line after printing.
Not used
Logic ground level
Printer's chassis ground,
which is isolated from the
logic ground
Not used
Twisted-pair return signal
ground level
When this level becomes
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 txz at the receiving
terminal.
A p p e n d i x
I
A - 9