Xerox Corporation

Edouard E Langlois

John J Darcy

Robert C U Yu

Robert S Foltz

Mark Muscato

Boris W Haritonoff

Robert F Dunham

Richard P Millonzi

Karl V Thomsen

Warren R Smith

Barbara D Ceglinski

Alan C Kirchoff

Kathryn T Kehoe

Michael D Stair

William G Herbert

Robert C Yu

Peter J Schmitt

Daniel M McNeil

Paul C Lincoln

Duane C Basch

Multiple-seam electrostatographic imaging member belts include two or more imaging member portions joined together by two or more seams. The belts can be formed from imaging member web that either includes or does not include an anti-curl backing layer, and that includes a charge transport layer that is substantially stress free.

Multiple-seam electrostatographic imaging member and method of making electrostatographic imaging member

A method of treating an electrostatographic imaging member web is applied to a web that includes a support substrate and at least one imaging layer formed over the support substrate. The electrostatographic imaging member web can optionally include no anti-curl backing layer. The web is bent into an arcuate shape and heated to a temperature above the glass transition temperature of the imaging layer. The imaging layer is then cooled while in the arcuate shape to a temperature below the glass transition temperature, forming a substantially stress-free imaging layer when conforming to the arcuate shape. The electrostatographic imaging members can be electrographic and electrophotographic imaging members. The treated electrostatographic imaging member webs can be formed into seamed electrostatographic imaging member belts such as ionographic imaging member belts and photoreceptor belts.

Method of treating electrostatographic imaging web and method of making

A process including mixing a slurry of HOGaPc Type I polymorph, under low shear and high flow, in an organic solvent, wherein there results a HOGaPc Type V polymorph with superior electrophotographic imaging properties.

Processes for the preparation of hydroxygallium phthalocyanine

An apparatus is provided for disposing a sheet adjacent a flexible member. The apparatus comprises a mechanism for transporting the sheet to a loading position and a mechanism, located adjacent the loading position, for receiving and holding the sheet. The receiving and holding mechanism is capable of moving the sheet into juxtaposition with a surface of the flexible member so that the sheet contacts the surface of the flexible member upon being released by the receiving and holding mechanism. The apparatus further comprises a mechanism for wrapping the flexible member about itself with the sheet interposed between opposed surfaces of the flexible member.

Apparatus for handling a sheet of separator material

Apparatus for the continuous coating of charge transport solutions onto a substrate to form an electrophotographic imaging member, including a pump to a flow of a first highly doped charge transport solution and a pump to a flow of a second undoped or lowly doped charge transport solution at predetermined rates to a common junction at which the flows intermix into a common flow upon contacting each other; piping connecting the pumping means to the common junction; and mixing device associated with the junction for continuously mixing the common flow during its movement through the mixing device, the mixing device having a short spiral flow path of less than about 200 cm for the solutions sufficient to substantially complete mix the common flow during its movement through the mixing means.

Fabrication of electrophotographic imaging members

An apparatus is provided for wrapping a sheet about an external surface of a flexible member to package the flexible member. The apparatus comprises a mechanism for receiving and clamping a free end of the sheet and a first portion of the flexible member, as well as a mechanism for spacing a second portion of the flexible member a preselected distance from the first portion thereof. The apparatus further comprises a mechanism for moving the receiving and clamping mechanism to urge the spacing mechanism toward the receiving and clamping mechanism so that movement of the receiving and clamping mechanism wraps the flexible member and sheet with the sheet being wrapped about the external surface of the flexible member.

Apparatus for wrapping a flexible member

Processes and apparatus for fabricating an electrophotographic imaging member in which a web coated with a charge generation layer is coated with a charge transport layer comprising a dopant, the improvement comprising detecting the change in dopant concentration required, determining the amount of highly doped charge transport composition and amount of undoped or lowly doped charge transport composition required to achieve the change in dopant concentration, feeding the determined amounts of highly doped charge transport composition and undoped or lowly doped charge transport composition into a mixing zone, rapidly mixing the amounts of highly doped charge transport composition and undoped or lowly doped charge transport composition to form a uniformly doped charge transport composition, and applying the uniformly doped charge transport composition to the charge generation layer.

An apparatus and process for fabricating belts wherein the leading edge of a web is conveyed from a supply roll in a straight path a predetermined first distance from a web receiving platform having a cutting edge, the web is cut at the cutting edge to form a web segment having the leading edge at one end and a trailing edge at the opposite end, the leading edge is conveyed a predetermined second distance in an downstream direction to form slack in the web, the lower surface of the web adjacent the trailing edge is inverted, the lower surface of the web adjacent the leading edge is inverted, the leading edge and the trailing edge are overlapped to form a lap joint on the upper surface of an elongated anvil having a centerline positioned substantially perpendicular to the straight path of the web to form a loop of the web segment loosely suspended from the joint formed by the overlapped leading edge and trailing edge, the loop of the web segment on the anvil is conveyed along either an arcuate path to position the joint substantially parallel to the direction of the straight path or conveyed vertically while maintaining the centerline of the anvil positioned substantially perpendicular to the straight path of the web, the lap joint is welded on the anvil to form a belt welded at the joint, the loop of the web segment on the anvil is conveyed in a direction opposite the previous direction until it has returned to its previous position, and the belt is removed from the anvil.

Belt fabrication machine

A cylindrical electroforming mandrel and method of fabricating and using same, the mandrel having a substantially cylindrical mandrel core having substantially parallel sides and at least one tapered end having curved sides which converge toward an apex, and a plated metal coating on the parallel sides and the tapered end, the profile of an axial cross section of the tapered end from the intersection between the curved sides and the parallel sides to about the apex having the shape of half an ellipse defined by the formula: ##EQU1## where: a=1/2 the length of the major axis of the ellipse and has a value between about 2.3b and about 1.7b,

Growing community of inventors

Rochester, NY, United States of America

Edouard E Langlois