Two-stage method and apparatus for glossing a developer sheet
AssigneeThe Mead Corporation
InventorRobert A. Landis
Life of this patent
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Abstract
A method and apparatus glosses a developer sheet which has a resin layer coated on one side thereof which glosses at a predetermined temperature T. The sheet is placed with the resin side thereof in contact with a conductive heating element, preferably a porous belt. Heat is applied to the resin side of the sheet by the heating element to bring the sheet from its ambient temperature to a temperature just below the glossing temperature T.
Claims6
A method of glossing an image sheet having a resin layer on one side thereof which glosses at a predetermined temperature T, comprising the steps of:
- placing said sheet with the resin side thereof in contact with a conductive heating means;
- applying heat to the resin side of the sheet to bring the sheet to a temperature just below said temperature T;
- removing the resin side of said sheet from contact with said conductive heating means;
- and
- applying heat to the resin side of said sheet from a non-contact heating source to raise the temperature of said sheet to a temperature at or above said temperature T.
A method of glossing an image sheet having a resin layer on one side thereof which glosses at a predetermined temperature T, comprising the steps of:
- moving the sheet from a first point to a second point by contacting the resin side of said sheet with a porous heated belt, and simultaneously heating said sheet to a temperature just below said temperature T;
- removing the sheet form said belt;
- moving the sheet form said second point to a third point while directing a stream of heated air onto the moving sheet to raise the temperature of the sheet to a temperature at or above said temperature T.
Dependencies are inferred from the claim text.