Recording medium type identification device with optical...

Details Recording medium type identification device with optical... Recording medium type identification device with optical...

2011-01-25

2011-01-25

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C235S435000, C710S301000

Reexamination Certificate

active

07875870

ABSTRACT:
According to the present invention, during identification of recording medium type, positioning of a recording medium at a measurement position for measuring the recording medium is facilitated, and the number of sensors for measuring the recording medium is reduced. In addition to identifying recording medium type, the top/reverse of the inserted recording medium can also be identified by way of a simple construction. A recording medium identification device, which identifies the type of a recording medium inserted through an insertion slot, comprises a plurality of sensors arranged in a band-like region having a predetermined width, in a depth direction, and a plurality of sensors arranged in a band-like region having a predetermined width, in a width direction. Data of two types of dimensions, combining dimensions of the recording medium in the depth direction and the width direction, is acquired by respectively arranging the a plurality of sensors in two partially overlapping band-like regions arrayed forming an L-shape. A plurality of types of recording media can be identified with increased identification precision by identifying the type of the recording medium based on such combined data of two types of dimensions.

REFERENCES:
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patent: 2005-078192 (2005-03-01), None
patent: 2005-235063 (2005-09-01), None

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