Xerox Corporation

Dana G Marsh

Joseph Y Chu

John M Pochan

William W Limburg

Richard L Schank

John L Webb

David R Shuey

Joel S Miller

Flash fusing apparatus for fixing toner images to copy substrates. The apparatus is characterized by the provision of a power supply and control for a flash lamp which produces multiple flashes which are coupled to a discrete portion of a copy substrate. Each individual flash is insufficient to effect fusing of the toner images, however, a predetermined number of flashes impinging on the same discrete portion of a copy substrate will effect coalescence of the toner after which cooling of the toner takes place resulting in fixing thereof to the substrate.

Multiple-flash fuser

An apparatus which includes a plurality of heating elements to fuse a powder image onto a copy sheet. Selected heating elements of the apparatus are energized in an ordered sequence corresponding to the surface area of the powder image being fused.

Fusing system

This invention relates to a release material and photoresponsive devices, especially layered devices, containing such material; the release material being comprised of a cross-linked siloxy coupled, dihydroxy polymer said cross-linked material being comprised of a silicone polymer of the following formula: ##STR1## wherein R and R' are independently selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl, R' is selected from the group consisting of alkenes and substituted alkenes, Y is a dihydroxy radical, and m and n are numbers of sufficient value in order to result in a polymer having a molecular weight of from about 2,000 to about 250,000.

Release overcoat for photoresponsive device

An instant-on radiant fuser apparatus for fusing toner images in an electrostatographic copying machine, which does not require the use of any standby heating devices and yet is capable of fusing the first copy in a matter of seconds. The radiant fuser apparatus is made of a low mass reflector thermally spaced from a housing, with the housing and the reflector together forming a conduit for the passage of cooling air therein. A low mass platen is provided which is constructed to achieve operating temperature conditions in a matter of a few seconds without the use of any standby heating device. A housing for the platen is also provided to form a conduit for the passage of cooling air to control the temperature of the platen.

Instant-on radiant fuser

A novel toner system is provided employing a photodegradable toner. These toners are photodegradable during the fixing step in electrophotographic processes when they are exposed to light and then pressure or in the opposite sequences. This system provides excellent fixing of toner images at lower energy levels than is found in composition fixing systems.

Hybrid fix system incorporating photodegradable polymers

Disclosed is a method of forming a layer of particulate trigonal selenium dispersed in a polymeric matrix. The method involves:

Crystallization of selenium in polymer matrices via in situ generation

Disclosed is a novel microimaging method suitable for photo-composition. The method involves:

Microimaging film containing an organic diselenide, a tertiary phosphine

Disclosed is an imaging method which comprises:

Imagewise exposing and heating a microimaging film containing an organo

Disclosed is a microimaging composition which comprises a film of an organic polymer as a matrix material having uniformly dispersed therein:

Microimaging film containing an organo diselenide, a tertiary phosphine

There is described a method for forming an electrophotographic imaging member wherein a selenium compound dispersed in an electrically insulating polymer matrix is photochemically or thermally decomposed and elemental selenium and a charge carrier transport compound are deposited within the binder matrix.

Method for forming an electrophotographic member

The present invention is a driograhic imaging method which employs an ink comprised of an organic material which is convertible from a state of high viscosity to a state of low viscosity by exposure to high energy radiation. The ink is applied to an inking roller in its initial state of high viscosity and exposed to activating radiation in an imagewise manner to convert the material to a state of low viscosity and thereby reduce the viscosity of the ink in a configuration corresponding to the pattern of radiation. Contacting the irradiated inking roller with a receiving member results in transfer of the ink in imagewise configuration from the inking roller to the receiving member.

Driographic imaging method

Polymeric matrices such as poly(vinylchloride) and poly(methylmethacrylate) loaded with mixtures of an organopolyselenide characterized by the formula:

Photosensitive film comprising an organopolyselenide and an

Disclosed is a method for the preparation of a relief printing master which is based on irradiation of a film of a composition comprising A. a degradable polymer containing segments characterized by the structural formula ##EQU1## wherein R is H, an alkyl radical of 1 to 6 carbon atoms, a chlorine or fluorine substituted alkyl radical of 1 to 6 carbon atoms or a cyano substituted aliphatic hydrocarbon radical of 1 to 5 carbon atoms, and B. a photosensitizer which upon exposure to actinic radiation assumes a .sup.3 (n, .pi.*) or a .sup.1 (n, .pi.*) state. The polymer and photosensitizer combination, which is in the form of a thin film upon a suitable substrate, is exposed in an imagewise manner to actinic radiation to thereby degrade the polymer. Upon such degradation, depressions are formed in the exposed areas thereby rendering the exposed film suitable for use as a relief printing master.

Method for the preparation of relief printing masters

Disclosed is an imaging method which involves exposing to activating radiation in an imagewise manner a film comprised of a matrix polymer as the principal ingredient, a degradable polymer and a photo-oxidant. Exposure of the film causes degradation of the degradable polymer, e.g., poly(acetaldehyde), whereupon the film undergoes a change in optical density in the exposed areas to provide a visible image.

Growing community of inventors

Rochester, NY, United States of America

Dana G Marsh