PSC QuickScan 3000, Product Reference Manual

Page: 179 / 352

11-39
Symbologies
Code 39 Buffering (Scan & Store)
This feature allows the scanner to accumulate data from multiple Code 39 symbols.
When you select the Scan and Store option (Buffer Code 39), all Code 39 symbols having
a leading space as a first character are temporarily buffered in the unit to be transmitted
later. The leading space is not buffered.
Decode of a valid Code 39 symbol with no leading space causes transmission in sequence
of all buffered data in a first-in first-out format, plus transmission of the “triggering” symbol.
See the following pages for further details.
When the Do Not Buffer Code 39 option is selected, all decoded Code 39 symbols are
transmitted immediately without being stored in the buffer.
This feature affects Code 39 only. If you select Buffer Code 39, we recommend that you
configure the scanner to decode Code 39 symbology only.
Buffer Code 39
(Enable)
*
Do Not Buffer Code 39
(Disable)
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 11-41) or clear the buffer.