Variable usb_txtbfr – CognitiveTPG DLXi User Manual
Page 264
P R I N T E R S E T U P
VARIABLE USB_TXTBFR
Function
Sets the size of the USB Buffer
Explicit Form
Implicit Form
VARIABLE USB_TXTBFR txt
ovf
V USB_TXTBFR txt
ovf
Parameters
txt
Size of the text buffer, in bytes. The
allowable range is 4096 to 65535, with a
default of 4096.
? returns the current setting.
ovf
Optional; specifies the size of the overflow
buffer, in bytes. The allowable range is 0 to
(txt - 1024).
NOTE: Turn the printer OFF and back ON again just
before you send this command to the printer. Some
printers may ignore the
TXTBFR
command if printer
power is not cycled first. The command will not take
effect until the power is cycled again after sending the
command.
Comments
When using this command, send it to the printer
with VARIABLE WRITE in a non-printing label
format. Do not use this command in stored label
formats.
The text buffer holds incoming ASCII data before it
is processed. The overflow buffer is part of the text
buffer. It begins filling after the rest of the text
buffer is full, at which time the printer will signal
the host to stop sending data.
Data sent via the serial port cannot overflow the
text buffer, providing hardware or software flow
control is enabled. Data sent via the parallel port
will overflow the text buffer if the size of the ASCII
label format is larger than (txt-ovf).
Increasing the text buffer size will decrease the size
of the image buffer.
Revision F, January 2012, CognitiveTPG
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