Datalogic Scanning QUICKSCAN QD 2300 - Manual (Page 124)

Symbologies
118 QuickScan ® L
Code 39 Buffering (Scan & Store)
This feature allows the scanner to accumulate data from multiple Code 39 bar codes.
Selecting the Scan and Store option (Buffer Code 39) temporarily buffers all Code 39
bar codes having a leading space as a first character for later transmission. The leading
space is not buffered.
Decode of a valid Code 39 bar code with no leading space causes transmission in se-
quence of all buffered data in a first-in first-out format, plus transmission of the “trigger-
ing” bar code. See the following pages for further details.
When the Do Not Buffer Code 39 option is selected, all decoded Code 39 bar codes
are transmitted immediately without being stored in the buffer.
Code 39 Buffering (Scan & Store)
This feature affects Code 39 only. If selecting Buffer Code 39, we recommend configur-
ing the scanner to decode Code 39 symbology only.
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 119 ) or clear the buffer.
Buffer Data
To buffer data, Code 39 buffering must be enabled and a Code 39 bar code must be read
with a space immediately following the start pattern.
- Unless the data overflows the transmission buffer, the scanner issues a low/high beep to
indicate successful decode and buffering. (For overflow conditions, see Overfilling
Transmission Buffer on page 120 .)
- The scanner adds the decoded data excluding the leading space to the transmission
buffer.
- No transmission occurs.
Buffer Code 39
(Enable)
*
Do Not Buffer Code 39
(Disable)