A new type of Shoei, the most popular type of sheet checker, equipped with a CCD cameras (from both sides, top & bottom) has recently been introduced.
Conventional photo-sensors that adopt the shade comparison method have difficulty detecting shapes, but CCD cameras allow the detection or recognition of shapes by comparing Patterns.
This new system is very effective for the recognition of letters or symbols, etc., and operation is so easy - simply press the START button and the sheet checkers automatic searching function will search the marked position and start operation from the teaching mode through to the checking mode. |