摘要:
A process for preparing a device containing a continuous, semi-transparent conductive layer including providing a substrate, applying to the substrate a coating containing a dispersion of conductive particles having an average particle size less than about 1 micrometer and having an acidic or neutral outer surface in a basic solution containing a film forming polymer dissolved in a solvent, and drying the coating to remove the solvent and form the continous, semi-transparent conductive layer. The article prepared by this process may be used in an electrophotographic imaging process.
摘要:
An imaging member having a flexible supporting substrate layer, an electrically conductive layer, an optional adhesive layer, a charge generator layer and a charge transport layer, the supporting layer having a thermal contraction coefficient substantially identical to the thermal contraction coefficient of the charge transport layer. This imaging member may be employed in an electrostatographic imaging process.
摘要:
There is provided a process for producing a seamed, flexible electrostatographic imaging member belt comprising providing a flexible, substantially rectangular, electrostatographic imaging sheet having a first major exterior surface opposite and parallel to a second major exterior surface and a first marginal end region of said sheet opposite and parallel with a second marginal end region; shaping said first marginal end region at an angle to form a first new sloping surface between the first major exterior surface and the second major exterior surface; shaping said second marginal end region at an angle to form a second new sloping surface between the first major exterior surface and the second major exterior surface, wherein the second new sloping surface is substantially parallel with the first new sloping surface; forming the sheet into a loop and overlapping said first new sloping surface with said second new sloping surface to form a mated region; and , joining said first new sloping surface to said second new sloping surface in the mated region to form a thin profile butt-lap seam.
摘要:
A system for increasing the life of flexible photoreceptor belt (10) in a copier/printer includes tensioning and de-tensioning the photoreceptor belt (10) by a unit (150,160,170,171). The photoreceptor belt is detensioned at the end of daily use, on weekends, and on non working days in order to reduce belt dimensional elongation due to creep which thereby suppresses the development of charge transport layer cracking in the photoreceptor belt and increases belt service life of the photoreceptor by a factor of about 2X.
摘要:
A process for treating a seamed flexible electrostatographic imaging belt including providing an imaging belt including at least one imaging layer including a thermoplastic polymer matrix and a seam extending from one edge of the belt to the other, the seam having a region on the belt adjacent each side of the seam and also having an exposed surface on each side of the belt, supporting the belt with at least one vacuum holding device spaced from the seam while maintaining the seam and region of the belt adjacent each side of the seam in an arcuate shape having at least a substantially semicircular cross section having a radius of curvature of between about 9.5 millimeters and about 50 millimeters, heating the thermoplastic polymer matrix of the imaging layer in the seam and the region of the belt adjacent each side of the seam to at least the glass transition temperature (Tg) of the thermoplastic polymer matrix without significantly heating the support member, and contacting the exposed surface of the seam and regions on each side of the belt with a gas to rapidly cool the seam and regions on each side of the belt to a temperature below the glass transition temperature of the polymer matrix while maintaining the arcuate shape of the region of the belt adjacent each side of the seam. Apparatus for carrying out this process is also disclosed.
摘要:
There is provided a process for producing a seamed, flexible electrostatographic imaging member belt comprising providing a flexible, substantially rectangular, electrostatographic imaging sheet having a first major exterior surface opposite and parallel to a second major exterior surface and a first marginal end region of said sheet opposite and parallel with a second marginal end region; shaping said first marginal end region at an angle to form a first new sloping surface between the first major exterior surface and the second major exterior surface; shaping said second marginal end region at an angle to form a second new sloping surface between the first major exterior surface and the second major exterior surface, wherein the second new sloping surface is substantially parallel with the first new sloping surface; forming the sheet into a loop and overlapping said first new sloping surface with said second new sloping surface to form a mated region; and , joining said first new sloping surface to said second new sloping surface in the mated region to form a thin profile butt-lap seam.
摘要:
A belt loading apparatus (300) for loading without damage to the belt (216), a flimsy continuous belt (216) onto a belt support and drive assembly (200) including a vertical front end having a first shape includes a wall member (316) defining a sleeve (310) including an outer surface (330) having a total outer surface area, a first edge (334) and a second and opposite edge (336). The second edge (336) has a vertical profile having a second shape such that the second shape of the second edge (336) is a mirror image of the first shape of the belt support and drive assembly (200). The belt loading apparatus (500) then includes friction reducing members (350) formed on the outer surface (330) of the sleeve (310) for temporarily supporting and spacing a flimsy continuous belt (216) to be loaded onto the belt support and drive assembly (200). The friction reducing members (350) each have a belt contact area such that a sum total of belt contact areas of all the friction reducing members (350) is significantly less than the total outer surface area (330) of the sleeve.
摘要:
An electrophotographic imaging member is disclosed including a support substrate having a two layered electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, an intermediate layer over and in contact with the adhesive layer, the intermediate layer comprising a carbazole polymer, a charge generation layer comprising a perylene or a phthalocyanine, and a hole transport layer, said hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from said charge generation layer and transporting said holes through said charge transport layer.