Drum type image scanner

Details Drum type image scanner Drum type image scanner

1991-12-04

1994-05-31

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358440, 358406, 358401, H04N 104

Patent

active

053174240

ABSTRACT:
A drum type image scanner includes a transparent cylinder 2, and a cylinder drive motor 16, which are concentrically and rigidly fixed with a bracket 18. The bracket 18 is fixed to a base 12 by connecting a key way 24 of the bracket 18 and another key way 42 of the base 12 with a key 46. An optical unit 10 is movable along a track rail 34 on the base 12. When the cylinder unit 4 and the optical unit 10 are attached to the base 12, the track rail 34 runs parallel to the axis of the cylinder 2 owing to the connection of the key ways 24 and 42. The structure eliminates troublesome adjustment for parallelism between the axis of the cylinder 2 and the track rail 34 and the concentricity of the cylinder 2 with the cylinder drive motor 16, thus simplifying attachment of the cylinder 2 to the drum type image scanner 1.

REFERENCES:
patent: 2164038 (1939-06-01), McFarlane et al.
patent: 4870504 (1989-09-01), Ishida

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