Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1992-12-24
1994-07-19
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
235474, G06K 500
Patent
active
053311736
ABSTRACT:
A method of initializing an optical scanning system by centering a benchmark code in an electrically adjustable benchmark window, the benchmark code being scanned by the optical scanning system while being transported through a paper handling machine. The improvement comprises the steps of providing an encoder for timing the machine cycles of the paper handling machine as a plurality of documents are processed therethrough; conveying a document containing a benchmark code to be scanned past a scanning device of the optical scanning system; enabling a counter at the lead edge of the electrically adjustable benchmark window; incrementing the counter once for every two encoder pulses; disabling the counter when the scanning device detects the benchmark code; displaying the count of the counter in a LED display; and adjusting the location of the benchmark window so that the benchmark code is substantially centered in the benchmark window based on the count displayed on the LED display.
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Eckl John K.
Lorenzo John L.
Le Que T.
Malandra, Jr. Charles R.
Nelms David C.
Pitney Bowes Inc.
Scolnick Melvin J.
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