Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1991-03-07
1992-11-24
Reinhart, Mark J.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
372 21, 372 71, 372 75, 372 69, H04N 121
Patent
active
051667037
ABSTRACT:
A printing device employs a semiconductor laser source for producing a laser beam, and a semiconductor-laser-pumped solid-state laser. The solid-state laser includes an optical resonator, such as a nonlinear optical element for effecting wavelength conversion, and a solid-state laser material disposed therein. The solid-state laser material is optically pumped by the laser beam from the semiconductor laser source and produces a laser beam to be applied onto a photosensitive sheet of paper. Responsive to print data, the intensity of the laser beam from the semiconductor laser source is varied between a first intensity level and a second intensity level. The photosensitive sheet of paper is insensitive to the laser beam when the laser beam from the semiconductor laser source is at the first intensity level, whereas it is sensitive to the laser beam when the laser beam from the semiconductor laser source is at the second intensity level.
REFERENCES:
patent: 4791631 (1988-12-01), Baumert et al.
patent: 4860302 (1989-08-01), Janes
patent: 4897562 (1990-01-01), Krasinski et al.
Suzuki Makoto
Watanabe Mitsuyoshi
Brother Kogyo Kabushiki Kaisha
Reinhart Mark J.
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