Photocopying – Including fiber optics
Patent
1985-01-23
1987-02-24
Prescott, A. C.
Photocopying
Including fiber optics
355 3R, 355 14R, G03G 1500
Patent
active
046453288
ABSTRACT:
An apparatus for scanning an original includes a light source which is supported by a carriage movable in a scanning direction. A shield member is formed on the carriage. A first photointerrupter is provided at a home position of the carriage and a second photointerrupter is provided to a moving direction therefrom. When a forward going of the carriage is started from the home position and continued by a distance corresponding to the size of paper and/or the copy magnification, the light source is turned off and the carriage starts a returning movement. During the returning movement, the carriage travels further as far as the prescribed distance after the second photointerrupter being shielded by the shield member, thereafter a braking is applied on the carriage. The prescribed distance may be changed in accordance with the paper size or the copy magnification, accordingly the larger the returning speed of the carriage, the shorter the prescribed distance described above and longer the braking distance, which will be reduced with the increased returning speed.
REFERENCES:
patent: 4303332 (1981-12-01), Sakai
patent: 4324485 (1982-04-01), Asakura et al.
patent: 4338020 (1982-07-01), Yukawa et al.
patent: 4379631 (1983-04-01), Kitamura
patent: 4422756 (1983-12-01), Abe et al.
patent: 4511246 (1985-04-01), Nishiyama
patent: 4519702 (1985-05-01), Shigemura et al.
Izawa Takaharu
Kikkawa Shinichi
Miyazaki Yoshifumi
Moriki Etsuzo
Nonoue Torahiko
Prescott A. C.
Sanyo Electric Co. Ltd
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