Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1995-07-05
1996-04-23
Beatty, Robert
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347263, G01D 1514
Patent
active
055108270
ABSTRACT:
A cooling arrangement for a laser beam printer apparatus which contains an optical box containing a laser beam deflector, a plastic lens which transmits a deflected laser beam, and an electronic package board. A cooling fan draws air in from the outside of the apparatus and passes the drawn-in air through the cooling fan directly to the optical box. To achieve more efficient cooling of the apparatus: (1) a portion of the electronic package board is projected from the optical box, and at least some heat-generating components of the electronic package board are provided on the projected portion; (2) the optical box and the electronic package board are arranged apart from each other, intervened by a recording sheet conveying unit; and/or (3) the optical box is provided with cooling fins. Specific cooling of the optical box is achieved by providing the cooling fan near to the optical box and electrically connected to the optical box.
REFERENCES:
patent: 4297713 (1981-10-01), Ichikawa et al.
patent: 4351005 (1982-09-01), Imai et al.
patent: 4469430 (1984-09-01), Terashima
patent: 4875063 (1989-10-01), Idenawa et al.
Kubota Takeshi
Watanabe Hideaki
Beatty Robert
Canon Kabushiki Kaisha
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