Abstract: Described herein is a device that generates a beam of light with uniform intensity. The device includes an array of light sources. The light generated passes through a beam splitter. One beam is used for feedback to maintain uniform intensity. The other beam passes through a barrel which is used to mold the beam with uniform intensity into the desired shape and to reduce divergence. The device can be used as part of a quality control system for testing a photoreceptor drum.

Abstract: Described herein is a device that generates a beam of light with uniform intensity. The device includes an array of light sources. The light generated passes through a beam splitter. One beam is used for feedback to maintain uniform intensity. The other beam passes through a barrel which is used to mold the beam with uniform intensity into the desired shape and to reduce divergence. The device can be used as part of a quality control system for testing a photoreceptor drum.

Abstract: Described herein is a method of forming a seamless transfer member suitable for use with an image forming system. The method includes spray coating a UV curable polymer and conductive particles onto an inner surface of a rotating cylindrical mandrel. The UV curable polymer is cured with ultra violet energy. The cured UV polymer is removed from the cylindrical rotatable mandrel.

Abstract: Described herein is a method of forming a seamless transfer member suitable for use with an image forming system. The method includes spray coating a UV curable polymer and conductive particles onto an inner surface of a rotating cylindrical mandrel. The UV curable polymer is cured with ultra violet energy. The cured UV polymer is removed from the cylindrical rotatable mandrel.

Abstract: An imaging member includes a charge generating layer and a charge transport layer. The charge transport layer includes a first surface in contact with the charge generating layer and a second surface. The charge transport layer includes a film forming polymer binder and a charge transport component dispersed therein. The concentration of the charge transport component in the charge transport layer is at a peak in a region of the charge transport intermediate the first and second surfaces of the charge transport layer.

Abstract: An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-conductive polymer binder, or mixtures thereof. Optionally, the barrier layer can include a small amount of a charge transport material.

Abstract: The amount of lateral charge migration (LCM) on a photoreceptor is quantified by measuring the average potential of a latent image formed on the photoreceptor surface. The surface is first uniformly charged, then exposed a first time to an image. After a waiting period during which LCM may occur, the surface is exposed a second time to the image. After another waiting period, the average potential is measured. The amount of LCM may be quantified by varying the waiting periods.

Abstract: An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-conductive polymer binder, or mixtures thereof. Optionally, the barrier layer can include a small amount of a charge transport material.

Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.

Abstract: An imaging member includes a charge generating layer and a charge transport layer. The charge transport layer includes a first surface in contact with the charge generating layer and a second surface. The charge transport layer includes a film forming polymer binder and a charge transport component dispersed therein. The concentration of the charge transport component in the charge transport layer is at a peak in a region of the charge transport intermediate the first and second surfaces of the charge transport layer.

Abstract: Apparatus comprising a support member having a flat surface adapted to receive and support a seam region of a flexible belt comprising thermoplastic polymer material having a predetermined glass transition temperature, a heatable member having a smooth heatable flat surface for compressing at least a portion of the seam region of a flexible belt placed on the smooth flat surface of the support member to heat the portion to at least the glass transition temperature of the thermoplastic polymer material, the smooth surface of the heatable member having a profile which is parallel to the smooth flat surface of the support member, and wherein the heatable flat surface comprises a low surface energy or abhesive material.

Abstract: The amount of lateral charge migration (LCM) on a photoreceptor is quantified by measuring the average potential of a latent image formed on the photoreceptor surface. The surface is first uniformly charged, then exposed a first time to an image. After a waiting period during which LCM may occur, the surface is exposed a second time to the image. After another waiting period, the average potential is measured. The amount of LCM may be quantified by varying the waiting periods.

Abstract: A belt loading apparatus has been provided for loading a flimsy continuous belt onto a belt support and drive assembly including a vertical front end having a first shape and without damage to the belt. The belt loading apparatus includes a wall member defining a sleeve including an outer surface having a total outer surface area, a first edge and a second and opposite edge. The second edge has a vertical profile having a second shape such that the second shape of the second edge is a mirror image of the first shape of the belt support and drive assembly. The belt loading apparatus then includes friction reducing members formed on the outer surface of the sleeve for temporarily supporting and spacing a flimsy continuous belt to be loaded onto the belt support and drive assembly. The friction reducing members each have a belt contact area such that a sum total of belt contact areas of all the friction reducing members is significantly less than the total outer surface area of the sleeve.

Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.

Abstract: A belt loading apparatus has been provided for loading a flimsy continuous belt onto a belt support and drive assembly including a vertical front end having a first shape and without damage to the belt. The belt loading apparatus includes a wall member defining a sleeve including an outer surface having a total outer surface area, a first edge and a second and opposite edge. The second edge has a vertical profile having a second shape such that the second shape of the second edge is a mirror image of the first shape of the belt support and drive assembly. The belt loading apparatus then includes friction reducing members formed on the outer surface of the sleeve for temporarily supporting and spacing a flimsy continuous belt to be loaded onto the belt support and drive assembly. The friction reducing members each have a belt contact area such that a sum total of belt contact areas of all the friction reducing members is significantly less than the total outer surface area of the sleeve.

Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.

Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.

Abstract: A process for providing an improved imaging member belt having a welded seam which exhibits greater resistance to dynamic fatigue induced seam cracking and delamination. An apparatus for achieving stress relaxation and eliminating protrusions in the seam region is also disclosed.

Abstract: A process for post treatment of an ultrasonically welded seamed flexible imaging member belt including

Abstract: A process for post treatment of an imaging member belt including providing a support member having a smooth flat surface, providing a flexible belt having a welded seam, supporting the inner surface of the seam on the smooth flat surface, contacting the seam with a heated surface, heating the seam region with the heated surface to raise the temperature in the seam region to a temperature of from about 2° C. to 20° C. above the Tg of the thermoplastic polymer material, and compressing the seam with the heated surface with sufficient compression pressure to smooth out the seam.