Recorders – Record receivers and/or driving means therefor – Drum
Patent
1991-08-23
1994-04-05
Grimley, A. T.
Recorders
Record receivers and/or driving means therefor
Drum
346 76L, G01D 1510
Patent
active
053010990
ABSTRACT:
An imaging system comprising a source of light movable with respect to a writing element and projectable thereon to generate an image, a focusing means is provided for focusing a light source which generates a first beam of light of a wavelength selected to be actinic with respect to the writing element. At least a portion of the first beam of light is absorbed by the writing element. The apparatus comprises means to automatically supply donor sheets and receiver sheets independently to a writing platen or drum, and to selectively load and unload the donor sheets from superposition with the receiver sheet without disturbing the registration of the receiver sheet. Also included are components which contribute to the quality of the images generated, such as relatively inexpensive, low jitter transports and drives for the writing head and imaging drum. In particular, the writing drum is provided with an axial flat and a circumferential recess to facilitate loading, holding and unloading the donor and receiver sheets and to assure a smooth surface onto which the image is formed.
REFERENCES:
patent: 3199113 (1965-08-01), Barta
patent: 3578862 (1971-05-01), Hudock et al.
patent: 3654624 (1972-04-01), Becker et al.
patent: 4558944 (1985-12-01), Bothner
patent: 4660964 (1987-04-01), Yoshikawa et al.
patent: 5053791 (1991-10-01), Baek et al.
patent: 5145170 (1992-09-01), Morita
patent: 5146241 (1992-09-01), Ferschl
U.S. Serial No. 451,655, filed Dec. 18, 1989, entitled Thermal Printer, by Seung H. Baek & Thomas A. Mackin.
U.S. Serial No. 451,656, filed Dec. 18, 1989, entitled Thermal Printer, by Seung H. Baek & Charles D. DeBoer.
Eastman Kodak Company
Grimley A. T.
Ramirez Nestor R.
Randall Robert L.
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