Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1994-03-16
1996-02-27
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
2505594, 101 91, H01J 4014, B41L 4746
Patent
active
054951038
ABSTRACT:
An optical trigger is provided for use in a postage meter having a planar paper path. A light source with controllable intensity is mounted above the paper path and shines toward the paper path. A light sensor mounted above the paper path detects the reflected light if any. A dark region is provided below the paper path. More power is supplied to the light source when the sensor detects some light. An actuator is coupled with the printing mechanism of the meter to actuate it for printing of postage. When light is reflected from a mail piece, a timer is started, and when the timer reaches its programmed interval the actuator is actuated. The interval is adjustable by a trimmer adjustment, and two preprogrammed intervals may be selected by a front-panel switch.
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Poschung Anton
Utiger Mark
Allen Stephone B.
Ascom Hasler Mailing Systems AG
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