Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1991-07-29
1993-04-20
Reinhart, Mark J.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
372 18, 372 20, 372 24, H04N 121
Patent
active
052046940
ABSTRACT:
A fully electronic, nonmechanical raster output scanner (ROS) digital printer for high resolution xerographic printing is enabled by combining a laser adapted to produce a variable wavelength output with a dispersive element such as a grating to present a raster scan at an image plane. In a preferred embodiment, a diode laser is positioned within a laser cavity whose length is designed as a function of the resolution required for the scanned image. The wavelength varying output is incident upon a high resolution grating which diffracts the radiation through a diffraction angle which varies according to the wavelength of the incident light. A scan lens is positioned between the grating and a photoreceptor surface to provide focusing and scan linearity correction to the scan line.
REFERENCES:
patent: 3992692 (1976-11-01), White et al.
patent: 4250465 (1981-02-01), Leib
patent: 4349847 (1982-09-01), Traino
patent: 4450459 (1984-05-01), Turner et al.
patent: 4733253 (1988-03-01), Daniele
patent: 4737798 (1988-04-01), Lonis et al.
patent: 5121398 (1992-06-01), Rao
IEEE, J Quantum Electronics, Filinki and Skettrup, "Fast Dispersive Beam Deflectors and Modulators", vol. QE-18, No. 7, pp. 1059-1062 Jul., 1982.
Applied Physics Letters 54(2) Mittelstein et al. "Broadband Tunability of gain-flattened quantum well semiconductor lasers with an external grating", Mar. 20, 1989, pp. 1092-1094.
D. C. Hall et al., "Broadband long-wavelength operation (9700.ANG..gtorsim..lambda..gtorsim.8700 .ANG.) of Aly Ga.sub.1 -y As-GaAs-In.sub.x Ga.sub.1 -x As quantum well heterostructure lasers in an external grating cavity", Jun. 1989.
Xerox Disclosure Journal, Scifres & Burnham, "Semiconductor Quantum Well Window Lasers", pp. 383-387, vol. 10, No. 6, Nov./Dec. 1985.
Reinhart Mark J.
Xerox Corporation
LandOfFree
ROS printer incorporating a variable wavelength laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with ROS printer incorporating a variable wavelength laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ROS printer incorporating a variable wavelength laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1528865