Optical printer

Details Optical printer Optical printer

1988-02-08

1989-02-21

Miller, Jr., George H.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346160, 358300, G01D 942, G01D 1514, H04N 123

Patent

active

048069515

ABSTRACT:
An optical printer using laser beams, wherein, when a plurality (n) of laser beams are used at once to carry out a scanning operation, the positions of spots of said laser beams in both the primary scanning direction and sub-scanning direction are set so as to have the relation l=(n-1)a+m.multidot.n.multidot.a, wherein m is a positive integer (m.gtoreq.1); a the distance between the adjacent scanning lines in the sub-scanning direction on the printing surface of the optical printer after a printing operation; and l the distance between the adjacent laser beams in the sub-scanning direction on the surface of a photosensitive drum, whereby a high-quality printing effecting no overlapping and omission of images can be obtained even if the distance between the adjacent laser beams is increased during a scanning operation using a plurality of laser beams at once.

REFERENCES:
patent: 4053898 (1977-10-01), Hirayama et al.
patent: 4253102 (1981-02-01), Kataoka et al.
patent: 4276561 (1981-06-01), Friedman
patent: 4393387 (1983-07-01), Kitamura
patent: 4566043 (1986-01-01), Tamura
patent: 4591903 (1986-05-01), Kawamura et al.

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