Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1980-12-24
1984-03-13
Moses, Richard L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 3R, 335 63, G03G 1500
Patent
active
044364083
ABSTRACT:
Copying apparatus including a processing unit for forming a visible image on a copy material, a process control device for operatively controlling the processing unit, and a manual power switch unit for supplying power to electric loads of the processing unit and the process control device. The manual power switch unit includes an actuator to maintain an On condition during the time from the beginning of manual turning on, to the activation of manual turning off, and a coil to release the On condition of the actuator before the activation of the manual turning off. The power switch unit further includes a power control device for driving the coil to release the actuator from the On condition to the Off condition after a predetermined time has elapsed since a completion of copying operations, wherein the power control includes a timer controlled by the process control device for driving the coil.
REFERENCES:
patent: 2817730 (1957-12-01), Wilckens
patent: 3729696 (1973-04-01), Pope
patent: 3959755 (1976-05-01), Harper et al.
patent: 4222659 (1980-09-01), Komori et al.
Inuzuka Tsuneki
Ishida Masato
Sakamaki Hisashi
Tanioka Hiroshi
Canon Kabushiki Kaisha
Moses Richard L.
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