Scanner/plotter and rotatable drum for use therein

Details Scanner/plotter and rotatable drum for use therein Scanner/plotter and rotatable drum for use therein

1992-09-29

1996-06-11

Roskoski, Bernard

Facsimile and static presentation processing

Facsimile

Picture signal generator

G03B 2760

Patent

active

055261426

ABSTRACT:
A rotatable image-mounting drum for use in a scanner or plotter. The drum has an end for permitting the releasable attachment of the drum to the scanner's or plotter's supporting and turning means. The drum's image-mounting surface and the drum's attachment end are preferably made of the same material, preferably acrylic. The attachment end of the drum includes a disk at the end of the drum, which has an opening or openings passing from its outer face to its inner face. The other end of the drum preferably is not attached directly to the rest of the scanner. The plotter's or scanner's mechanism for releasably attaching the rotatable drum includes a drum mount rotatable by a motor. A clasp stem, passing through a drum-mount opening, has a clasp finger rigidly attached thereto. A cam surface, having a varying elevation, can be rotated so as to push the cam stem through the drum-mount opening. A spring urges the stem against the cam surface. As the cam surface is rotated with respect to the drum mount, the distance between the finger and the drum mount's exterior side varies. The finger can pass through the opening in the attachment end of the drum, and the drum may be clasped between the finger and the drum mount's exterior side.

REFERENCES:
patent: 3925607 (1975-12-01), Hauber
patent: 3938191 (1976-02-01), Jarmy
patent: 4345277 (1982-08-01), Ishikawa
patent: 4654526 (1987-03-01), Nakaji
patent: 4667253 (1987-05-01), Chen
patent: 4749296 (1988-06-01), Bohmer
patent: 4827129 (1989-05-01), Ressl et al.
patent: 5149082 (1992-09-01), Morita
patent: 5317424 (1994-05-01), Aotami
IBM Technical Disclosure Bulletin, vol. 23, No. 1, Jun. 1980, p. 17.
Patent Abstracts of Japan, vol. 15, No. 113, Mar. 18, 1991.

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