Photocopying – Contact printing – Light boxes
Patent
1992-12-03
1994-03-01
Fuller, Benjamin R.
Photocopying
Contact printing
Light boxes
355271, 355279, 271196, 271276, G03G 2100
Patent
active
052912604
ABSTRACT:
An image forming apparatus in which toner images are transferred using a combination of heat and pressure to a receiving sheet includes a transfer drum with a vacuum holding means for the receiving sheet. To prevent a loss of nip pressure over vacuum holes, the drum is formed of a metallic core with a slot running generally parallel to the core's axis of rotation. A thin metallic sheet is positioned around the core, which sheet has very thin slots running across the slot in the core. A vacuum is applied to the core slot which communicates through the sheet slots to hold a receiving sheet to the outside surface of the metallic sheet.
REFERENCES:
patent: 4927727 (1990-05-01), Rimai et al.
patent: 4941020 (1990-07-01), Baughman et al.
patent: 4949129 (1990-08-01), Fowlkes et al.
patent: 4968578 (1990-11-01), Light et al.
patent: 4982207 (1991-01-01), Tunmore et al.
patent: 4994827 (1991-02-01), Jamzadeh et al.
patent: 5006900 (1991-04-01), Baughman et al.
patent: 5016056 (1991-05-01), Johnson et al.
patent: 5043761 (1991-08-01), Johnson
patent: 5060931 (1991-10-01), Morita
patent: 5061590 (1991-10-01), Johnson et al.
patent: 5072922 (1991-12-01), Paulson
patent: 5155535 (1992-10-01), Bermel et al.
Johnson Kevin M.
Petruchik Dwight J.
Barlow Jr. J. E.
Eastman Kodak Company
Fuller Benjamin R.
Treash Leonard W.
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