US 5,177,535 AGranted

Image scanning apparatus having alignment confirmation means

AssigneeKabushiki Kaisha Toshiba

InventorJunji Watanabe

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Abstract

An image scanning apparatus for scanning an image on an image bearing member. The apparatus includes a platen glass for supporting an original having an image on a supporting surface, a platen sheet, movably mounted between a first position and a second position, for depressing the original against said supporting means, an image scanning device for scanning the image on the original along the supporting surface, an exposure command key for activating an activating device of the platen sheet to move from the first position to the second position so as to cause the platen sheet to expose the original and a depression command key for activating the activating device of the platen sheet to move from the second position to the first position so as to cause the platen sheet to depress the original against the platen glass.

Claims18

Dependent claims

An image scanning apparatus, comprising:

means for supporting an original, having an image, on a supporting surface;
means for covering said supporting means, the covering means defining an open housing and means for viewing the original on said supporting means from outside of the covering means, the open housing being closed by said supporting means when placed on said supporting means and the viewing means corresponding to a prescribed portion of said supporting means;
means, mounted in the open space of the covering means movably between a first position and a second position, for depressing the original against said supporting means;
means for scanning the image on the original along said supporting surface;
first moving means for moving said depressing means from the first position to the second position so as to cause said depressing means to be separated from said supporting means and also to expose the original through the viewing means when said covering means covers said supporting means;
and
second moving means for moving said depressing means from the second position to the first position so as to cause said depressing means to depress the original against said supporting surface and also to close the viewing means against the original when said covering means covers said supporting means.

4 more elements

An image scanning apparatus, comprising:

a platen glass for supporting an original having an image thereon, said platen glass having a supporting surface, and a regulating portion for regulating a movement of the original in a specific direction parallel to the supporting surface;
an image scanning device for scanning the image on the original supported on the supporting surface of said platen glass;
a cover body for covering said platen glass, the cover body defining an open housing and a window, the open housing being closed by said platen glass when placed on said platen glass and the window corresponding to a prescribed portion of said platen glass when said cover body covers said platen glass;
a platen sheet, movably mounted in said housing of the cover body, for depressing the original against the supporting surface of said platen glass when said cover body covers said platen glass;
and
an activating device for activating said platen sheet in relation to said cover body between a first position for causing said platen sheet to depress the original against the supporting surface of said platen glass and also to close the window against the original and a second position separate from the first position for causing said platen sheet to expose the original supported on the supporting surface of said platen glass through the window while said cover body covers the supporting surface of said platen glass, said activating device including a device for moving said platen sheet in the specific direction when said activating device activates said platen sheet from the second position to the first position.

3 more elements

Dependencies are inferred from the claim text.