Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1995-05-12
1998-03-10
Metjahic, Safet
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347261, B41J 247, G02B 2600
Patent
active
057266999
ABSTRACT:
A closed type polygon scanner has a housing, a rotor which is rotatively supported to a rotating shaft fixed to the housing and which includes a polygon mirror, a motor which generates a magnetic force to the rotor and rotates the rotor, and a cover. The cover includes an outer peripheral portion fixed to an outer peripheral portion of the housing, and covers the rotor together with the housing. An opening is formed at a predetermined portion in the cover facing a mirror surface of the polygon mirror through which a laser beam passes, and a window member is fixed to the opening in closed state. An inner peripheral surface of the cover facing the mirror surface of the polygon mirror is formed cylindrically and almost coaxially to a rotating axis of the rotating shaft, and a width in the rotating axis direction of the opening is set to a predetermined width relative to a width of the polygon mirror so that turbulent air generated around the polygon mirror is reduced.
REFERENCES:
patent: 4726640 (1988-02-01), Iwama et al.
patent: 5069515 (1991-12-01), Itami et al.
patent: 5179464 (1993-01-01), Morita et al.
patent: 5270737 (1993-12-01), Makasugi et al.
patent: 5363231 (1994-11-01), Komori
patent: 5367399 (1994-11-01), Kramer
patent: 5430570 (1995-07-01), Takahashi
patent: 5434695 (1995-07-01), Saito et al.
patent: 5530579 (1996-06-01), Nakamura et al.
patent: 5555123 (1996-09-01), Kaplan
patent: 5583559 (1996-12-01), Nakamura et al.
patent: 5598292 (1997-01-01), Yoshikawa et al.
patent: 5606448 (1997-02-01), Suzuki et al.
patent: 5610751 (1997-03-01), Sweeney et al.
Itami Yukio
Suzuki Mitsuo
Mahoney Christopher E.
Metjahic Safet
Ricoh & Company, Ltd.
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