Variable txtbfr – CognitiveTPG DLXi User Manual

Page 261

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P R I N T E R S E T U P

VARIABLE TXTBFR

Function

Sets the size of the text buffer and the text overflow

buffer.

Explicit Form

Implicit Form

VARIABLE TXTBFR txt

ovf

V 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). Overflowing the
text buffer in Code Courier or Barcode Blaster will

cause the printer to lock up. Blaster Advantage and

252

Revision F, January 2012, CognitiveTPG

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