Abstract:
A seamless flexible electrostatographic imaging member belt fabrication method comprising providing a flexible substrate support sheet, such as with a rectangular shape, placing a template on the support sheet, producing first desired features on a first portion of the substrate support sheet, including removing material from the substrate support sheet with first emissions, producing second desired features on a second portion of the substrate support sheet complementary to the first desired features, including removing material from the substrate support sheet with second emissions, overlapping the first and second desired features, bonding the first desired pattern with the second desired pattern to produce a seamed substrate support belt having substantially no added seam thickness and applying at least one coating over the substrate support belt.
Abstract:
Multilayered web stock is directed toward a curved surface and at least one layer of the web stock is heated to a temperature above a glass transition temperature of the at least one layer of the web stock. The heating can occur just before or upon engaging the curved surface. The temperature of the at least one layer remains above the glass transition temperature while engaging the curved surface, allowing reshaping and/or realignment of the at least one layer relative to other layers of the web stock according to conformance to the curved surface. The web stock is cooled before it disengages from the curved surface. The heating can be done with a high power infrared lamp focused into a line across the web stock, and the cooling can be done with a cooled fluid jet. Additionally, a preheater can be employed, and a supplemental cooler can be used.
Abstract:
A photoconductive imaging member containing a photogenerating layer, a charge transport layer, or a plurality of charge transport layers, and which charge transport, especially the top charge transport layer contains a vinyl containing organic compound.
Abstract:
An imaging member having a charge transport layer with multiple regions is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein at least the top or uppermost transport layer comprises a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be of the same or different compounds from that included in the top or additional charge transport layer(s). The charge transport compound present in each layer may be dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.
Abstract:
An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.
Abstract:
A seamless flexible electrostatographic imaging member belt fabrication method comprising providing a flexible substrate support sheet, producing first desired features on a first portion of the substrate support sheet, including removing material from the substrate support sheet with first emissions, producing second desired features on a second portion of the substrate support sheet complementary to the first desired features, including removing material from the substrate support sheet with second emissions, overlapping the first and second desired features, bonding the first desired pattern with the second desired pattern to produce a seamed belt and applying at least one coating the substrate support sheet.
Abstract:
A pattern fabrication apparatus includes a beam path for a beam to selectively bombard a target, a beam source producing the beam, a beam spreader that spreads the beam, a mask inducing a pattern on the beam, and a lens that can focus the beam onto the target. The apparatus can be used to manufacture seamless flexible electrostatographic imaging members by providing a flexible substrate support sheet, such as having a rectangular shape, producing first desired features on the support sheet, including removing material from the support sheet with first emissions, producing second desired features on the support sheet complementary to the first desired features, including removing material with second emissions, overlapping the first and second desired features, bonding the features to produce a seamed belt having substantially no added seam thickness, and applying at least one coating over the seamed belt.
Abstract:
A process for post treatment of an ultrasonically welded seamed flexible imaging member belt including providing an elongated support member having a smooth flat supporting surface, providing a flexible belt having parallel edges and a welded seam extending from one edge to the other edge, the belt seam including a seam region including an overlap and two adjacent splashings, thermoplastic polymer material having a glass transition temperature and an inner and outer surface, supporting the inner surface of seam on the smooth flat supporting surface with the seam region of the belt held down by vacuum against and conforming to the flat supporting surface of the support member, contacting the seam with a heated surface, the contacting heated surface has a profile that is substantially parallel to the smooth flat supporting surface of the support member, heating the seam region with the heated surface to raise the temperature in the seam region to a temperature of from about 2null C. to 20null 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. Apparatus for carrying out the process is also disclosed.