Epson LX-300+ Reference Manual page 70

High speed draft
When you choose
to 300 cps (characters per second) at 10 cpi (characters per inch).
When you choose
I/F (interface) mode
The printer comes with three kinds of interfaces; parallel, serial,
and USB.
If your printer is connected to only one computer, choose
,
Parallel Serial
interface you use. If your printer is connected to two computers
using different interfaces, select
printer to automatically switch between interfaces depending on
which one is receiving data.
Auto I/F (interface) wait time
This setting takes effect only when I/F (interface) mode is set
to Auto. This setting determines how long the printer waits
when it no longer receives data from an interface before it
checks whether a print job is being sent through the other
interface. You can specify
interface wait time.
Baud rate
Use this option to set the data transfer rate (baud) for the serial
interface. The baud rate is measured in bits per second (bps).
See your computer manual and software documentation for the
proper setting.
Parity
When this option is set to
parity bit, if used, provides a basic form of error detection. See
your computer manual and software documentation for the
proper setting.
70
Using the Control Panel
for High speed draft, the printer prints up
On
, the printer prints up to 225 cps at 10 cpi.
Off
, or for the interface mode, depending on the
USB
10 seconds
None
Auto (automatic) to allow the
or
30 seconds
, parity checking is disabled. The
for the auto