Setup and Assembling Bookeye 3 - Image Access Inc.
Setup and Assembling Bookeye 3 - Image Access Inc.
Setup and Assembling Bookeye 3 - Image Access Inc.
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A.2.4<br />
Setting the Initial Lamp Position<br />
The lamp position must be initialized after assembling the <strong>Bookeye</strong>® 3 scanner. The<br />
reason for this procedure is as follows:<br />
The scanners lamps turn under software control <strong>and</strong> project a vertical beam of light onto<br />
the scanning surface. Both lamps <strong>and</strong> the CCD have to move perfectly synchronized to<br />
achieve the highest brightness level during the whole sweep.<br />
The scanner’s CCD motor <strong>and</strong> the lamp motors form an electronic gear that performs very<br />
complex movements under software control while scanning books <strong>and</strong> other objects that<br />
are not completely flat. This only works if the initial position after a power up cycle is in a<br />
known state.<br />
Each lamp has a home position switch that acts as a reference. When a lamp is<br />
assembled into the scanner, the light beam position relative to the home position switch is<br />
unknown. To make known all positions of the above described electronic gear, the<br />
following initialization has to be executed.<br />
All positions in the electronic gear are adjusted via software later but the initial adjustment<br />
must be made manually.<br />
The initialization of the lamps is done in two steps.<br />
• The first steps is the mechanical adjustment. For the mechanical adjustment the<br />
keys for book cradle control will be used.<br />
• The second step is the electronic adjustment. The electronic adjustment will be<br />
controlled by the device firmware <strong>and</strong> runs fully automatically.<br />
During the mechanical adjustment of the lamps the keyboard display shows some<br />
information.<br />
Start the <strong>Bookeye</strong>® 3 scanner. After some internal tests have been performed, the display<br />
will show the message READY TO SCAN.<br />
<strong>Setup</strong> <strong>and</strong> Assembly Manual Page 33