Symbol LS7708 Product Reference Guide13-52
While there is data in the transmission buffer, selecting Do Not Buffer Code 39 is not allowed. The buffer holds 200 bytes of
information.
To disable Code 39 buffering when there is data in the transmission buffer, first force the buffer transmission (see Transmit
Buffer on page 13-53) or clear the buffer.
Buffer Data
To buffer data, Code 39 buffering must be enabled and a Code 39 symbol must be read with a space immediately following the start
pattern.
• Unless the data overflows the transmission buffer, the scanner issues a lo/hi beep to indicate successful decode and
buffering. (For overflow conditions, see Overfilling Transmission Buffer.)
• The scanner adds the decoded data excluding the leading space to the transmission buffer.
• No transmission occurs.
Clear Transmission Buffer
To clear the transmission buffer, scan the Clear Buffer bar code below, which contains only a start character, a dash (minus), and a
stop character.
• The scanner issues a short hi/lo/hi beep.
• The scanner erases the transmission buffer.
• No transmission occurs.
Clear Buffer
The Clear Buffer contains only the dash (minus) character. In order to scan this command, be sure Code 39
length is set to include length 1.
Note