Image reading apparatus with split position detection

Details Image reading apparatus with split position detection Image reading apparatus with split position detection

1993-05-18

1995-05-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250234, 250237R, H01J 4014

Patent

active

054122015

ABSTRACT:
An image reading apparatus is provided with a scanning optical system movable to scan an original, the scanning optical system having a slit for passing therethrough part of light from the original, a sensor for reading the light passed through the slit, and detecting means for detecting the relative positional relationship between the slit and the sensor. The detection by the detecting means is effected at a plurality of detecting positions in the direction of movement of the scanning optical system.

REFERENCES:
patent: 5060283 (1991-10-01), Shiraishi

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