Photographic paper magazine

Photographic paper magazine

Photographic paper magazine

It is an object of the photographic paper to provide a magazine in which the operation of drawing back the photographic paper can be stopped when the photographic paper is drawn back into the magazine to a predetermined extent to enable replacement of the photographic paper, and in which the movement of the photographic paper is not obstructed while the photographic paper is supplied to the photography printing apparatus.

To this end, the present invention provides a photographic paper magazine which comprises: a magazine body in which a roll of photographic paper is accommodated, the magazine body being capable of being closed and opened, a means for supporting the roll of photographic paper, axially supported on the magazine body; a photographic paper outlet aperture formed in the magazine body; a detection lever facing a photographic paper drawing-out section defined between the roll of photographic paper and the photographic paper outlet aperture, the detection lever being moved depending upon whether or not any portion of the photographic paper exists in the photographic paper drawing-out section; a checking means disposed between the detection lever and the photographic paper supporting means, the checking means checking photographic paper winding-up rotation of the photographic paper supporting means when no photographic paper exists in the photographic paper drawing-out section; and a release means for releasing the checking means from the checking state when the magazine is opened.

In accordance with the present invention, the photographic paper unrolled from the roll is supplied to the printing apparatus via the drawing-out section, and the checking means checks the rotation of the photographic paper supporting means in the photographic paper winding-up direction by detecting the state in which there is no photographic paper at a portion of the drawing-out section, after the photographic paper has been drawn back to a predetermined extent to enable the replacement of the magazine.

When the magazine is opened to change the roll of photographic paper, the release means detects this opened state and releases the checking means from the checking state, thereby the photographic paper supporting means can be removed from the magazine body together with the roll of remaining photographic paper. Thereafter, a new roll of photographic paper can be loaded.

The new roll to be set in the magazine is attached to the photographic paper supporting means, and the drawn out leading end is placed in the photographic paper drawing-out section. Then, the checking means detects the existence of photographic paper in this drawing-out section, and allows the photographic paper supporting means to rotate and wind up the photographic paper.

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