SATO M-8485Se - Base Reference Point

Section 6. Interface Specifications
( DTR ) are the important signals on the printer for this method of flow control. The
host must be capable of supporting this flow control method for it to function
p
ro
p
erl
y
.
X
-On/
X
-Off FLOW CONTROL
X-On/X-Off flow control is used whenever hardware (Ready/Busy) flow control is
not available or desirable. Instead of a voltage going high/low at pin 20, control
characters representing “Printer Ready” (X-On =11 hexadecimal) or “Printer Busy”
( X-Off = 13 hexadecimal) are transmitted by the printer on pin 2 (Transmit Data) to
the host. In order for this method of flow control to function correctly, the host must
be capable of supporting it. X-On/X-Off operates in a manner similar to the function
of pin 20 ( DTR ) a s previously explained. When the printer is first powered on it
sends an X-Off when the “Buffer Near Full” level is reached and a X-On when the data
level of the buffer drops below the “Buffer Available” mark. When the printer is taken
off-line manually, it transmits an X-Off indicating it cannot accept data. When it is
placed back on line manually, it sends an X-On , indicating it is again available for
receipt of data. If an error occurs during printing (paper out, ribbon out), the printer
sends an X-Off as soon as an error condition is detected. When the error is cleared
and the printer is placed back on-line, it transmits an X-On indicating it is again
ready to accept data.
Upon power up if no error conditions are present, the printe
r
w
ill continually send
X-On characters at five millisecond intervals until it receives a transmission from the
host.
Data Streams
The data streams for X-On/X-Off and Ready/Busy flow control are constructed in
the same wa
y
as the
y
are fo
r
Read
y
/Bus
y
flow control.
<ESC>
A
. . Job#1 . . <ESC>Z<ESC>
A
. . Job#n . . <ESC>Z
Example: <ESC> A . . Job# 1 . . <ESC>Z
NOTE: All charactersare in ASCII.
UNIVERSAL SERIAL BUS
(
USB
)
INTERFACE
The Universal Serial Bus (USB) interface is a Plug-In Interface Module that can be
installed by the user. It requires a driver (shipped with each printer that has the
interface installed) that must be loaded on your PC and the PC must be configured to
support USB peripherals using Windows 98. Details for loading the USB driver are
contained in the USB Interface Manual that is shipped with each printer with a USB
O
p
tional interface installed. U
p
to 127 devices ma
y
be connected to a USB
p
ort.
SATO “Se” Print En
g
ines Pa
g
e 6-7