title: How looks like command for Gryphon GPS440 Barcode to start scaning
body: <p>I am trying to pragmatically control scanning operation of Gryphon I GPS4400 barcode scanner.</p>
  <p>Scanner is attached to host over usb cable and scanner is programmed to act as virtual serial port.
  I have control over serial port on host and I am receiving  data from scanner regularly, also I am able to send some data to scanner over serial port. Scanner from my random text sent sometime response to serial port some time just beep.</p>
  <p>I am trying to activate scanning mode:</p>
  <p><em>Serial On Line: Scanning is initiated by command sent through the
  host interface (manual triggering can be enabled in this read mode
  through option setting).</em></p>
  <p><strong>(I know how to activate this mode on scanner, by reading configuration barcodes, but after that I do not know how to send command to trigger scanning)</strong></p>
  <p>My problem is that i can't find what sequence I need to send to scanner to start scanning?
  Is it possible at all to control scanning by commands over virtual com port attached by USB or I need to have dedicated serial cable with special wiring ?</p>