Vacuum imaging drum with an axial flat in the periphery thereof

Details Vacuum imaging drum with an axial flat in the periphery thereof Vacuum imaging drum with an axial flat in the periphery thereof

1991-08-23

1994-12-27

Fuller, Benjamin R.

Recorders

Record receivers and/or driving means therefor

Drum

346 76L, 346134, 271196, 271276, 355 73, G01D 1524

Patent

active

053769546

ABSTRACT:
An imaging system having a source of light movable with respect to a writing element and projectable thereon to generate an image, a focusing device is provided for focusing a light source which generates a beam of light of a wavelength selected to be actinic with respect to the writing element. At least a portion of the beam of light is absorbed by the writing element. The apparatus includes a vacuum imaging drum for holding donor sheets and receiver sheets independently for exposure by the light beam. The drum has an axial planar area which facilitates loading and unloading the donor sheets in superposition with the receiver sheet without disturbing the registration of the receiver sheet.

REFERENCES:
patent: 3199113 (1965-08-01), Barta
patent: 3945318 (1976-03-01), Landsman
patent: 4202542 (1980-05-01), Lammers et al.
patent: 4386771 (1983-06-01), Lakdawala
patent: 4517591 (1985-05-01), Nagashima et al.
patent: 4800275 (1989-01-01), Shimuzu et al.
patent: 4804975 (1989-02-01), Yip
patent: 4825074 (1989-04-01), Yoshikawa
patent: 5053791 (1991-10-01), Baek et al.
patent: 5081526 (1992-01-01), Yoshikawa et al.
patent: 5211391 (1993-05-01), Kerr et al.
patent: 5214444 (1993-05-01), Kerr et al.

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