Sheet detection apparatus with reflecting member

Details Sheet detection apparatus with reflecting member Sheet detection apparatus with reflecting member

1989-09-08

1991-01-08

Willis, Davis L.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250223R, G01N 2186

Patent

active

049838547

ABSTRACT:
A sheet detection apparatus is provided which determines the presence or absence of a sheet on a sheet feed path as well as the type of sheet. The apparatus utilizes a light source to direct a predetermined amount of light to a sensor by reflecting off a sheet on the feed path or a reflector in the absence of any such sheet on the path. The presence or absence of the sheet is determined by comparing the output value of the sensor with predetermined reference values.

REFERENCES:
patent: 3684890 (1972-08-01), Hayne et al.
patent: 3932755 (1976-01-01), Sagawa
patent: 4281244 (1981-07-01), Murata et al.
patent: 4314159 (1982-02-01), Davis
patent: 4352988 (1982-10-01), Ishida
patent: 4540887 (1985-09-01), Minerd et al.
patent: 4546449 (1985-10-01), Masaki et al.
patent: 4585352 (1986-04-01), Ritzerfeld et al.
patent: 4641357 (1987-02-01), Satoh
patent: 4723072 (1988-02-01), Naruse
patent: 4778296 (1988-10-01), Takahashi

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