摘要:
An apparatus for enabling the uniform application of a layer of a coating composition to a tubular substrate includes a shaft, and upper and lower circular rim members of equal diameter that are concentrically attached to the shaft. A pneumatically inflatable tube disposed on each circular rim member has an outer diameter that is variable with changes in its internal pressure. A first flexible cylindrical sheet in contact with the inflatable tubes has parallel edges that form a first slit sufficiently wide to permit movement of the first sheet in response to pressure variation in the tubes. A second flexible cylindrical sheet surrounding the first cylindrical sheet has parallel edges that form a second slit sufficiently wide to permit movement of the second sheet also in response to pressure variation. The second slit is laterally displaced from the first slit, and the second cylindrical sheet has a diameter nearly equal to the specified diameter of the substrate. Each of the tubes is inflatable to a pressure sufficient to provide the substrate with a smooth cylindrical outer surface for uniform application of a coating.
摘要:
This invention relates to an improved fusing station for fusing a toner image to a receiver when the fusing station includes a fuser roller having a hardness from about 50 to about 80 Shore A and an outside coating comprising a low damping fluorocarbon thermoplastic random copolymer roller coating formulation having a tan delta from about 0.01 to about 0.15 and containing from about 1.5 to about 2.5 parts per hundred (pph), based upon the weight of the copolymer of a curing agent having a bisphenol residue and a pressure roller having a smaller outer diameter than the fuser roller and positioned in pressure contact with the fuser roller to form a fusing nip between the pressure roller and the fuser roller. A method is also provided for fusing toner images to receiver sheets using the fusing station.
摘要:
Disclosed are apparatus and methods to adjust gloss of a fused toner image, and in particular to reduce differential gloss within the fused toner image so as to provide prints which more closely resemble lithographic prints in image quality. In embodiments, the apparatus and methods employ a finishing member having an outer contact surface thereon which contacts a previously fused toner image under conditions of elevated temperature and pressure. The contact surface is comprised of a fluorocarbon thermoplastic random copolymer co-cured with a fluorinated resin, such as polyfluoroethylenepropylene (FEP). In embodiments, the contact surface comprises a fluorocarbon thermoplastic random copolymer co-cured with a fluorinated resin including subunits of: —(CH2CF2)x—, —(CF2CF(CF3))y—, and —(CF2CF2)z—, wherein: x is from 1 to 50 or 60 to 80 mole percent, y is from 10 to 90 mole percent, z is from 10 to 90 mole percent, and x +y+z equals 100 mole percent.
摘要翻译:公开了调整熔融调色剂图像的光泽度的装置和方法,特别是降低熔融调色剂图像内的不均匀光泽度,从而提供与图像质量更接近平版印刷品的印刷品。 在实施例中,该装置和方法采用具有其上的外部接触表面的精加工构件,其在升高的温度和压力的条件下接触预先熔化的调色剂图像。 接触表面由与氟化树脂如聚氟乙烯丙烯(FEP)共固化的碳氟化合物热塑性无规共聚物组成。 在实施方案中,接触表面包括与包含以下亚基的氟化树脂共固化的氟碳热塑性无规共聚物:其中:x为1至50或60至80摩尔%,y为10至90摩尔%,z为 10〜90摩尔%,x + y + z为100摩尔%。
摘要:
A printer for printing color toner images on a receiver member of any of a variety of textures. The printer has a number of tandemly arranged electrophotographic image-forming modules respectively including a plurality of imaging subsystems to form a colored toner image transferred to a receiver member, the transfer of toner images from each of the modules forming a color print of the receiver member which is fused to form a desired color print. The image quality of the color print is produced by control of nonoperational co-optimization of fusing parameters and imaging subsystem parameters enabling printing on the variety of textures of receiver member.
摘要:
A fusing station including an externally heated deformable fuser roller and a relatively harder pressure roller, the fuser roller including a heat distribution layer. A fuser roller embodiment includes a core member, a base cushion layer around the core member, a heat storage layer around the base cushion layer, a heat distribution layer around the heat storage layer, and a thin gloss control layer around the heat distribution layer. Ratios of thermal conductivity divided by thickness for the layers are, respectively: for the base cushion layer, less than approximately 13.3 BTU/hr/ft2/°F.; for the heat storage layer, approximately between 300 BTU/hr/ft2/°F.-1400 BTU/hr/ft2/°F.; for the heat distribution layer, approximately between 600 BTU/hr/ft2/°F.-4,800 BTU/hr/ft2/°F.; and, for the gloss control layer, approximately between 600 BTU/hr/ft2/°F.-6,000 BTU/hr/ft2/°F.
摘要翻译:定影台包括外部加热的可变形定影辊和相对较硬的压力辊,该定影辊包括散热层。 定影辊实施例包括芯构件,围绕芯构件的基垫缓冲层,围绕基垫层的储热层,储热层周围的散热层,以及分布层周围的薄光泽控制层。 导热系数除以层的厚度分别为:基底垫层小于约13.3BTU / hr / ft 2 /°F; 大约在300BTU / hr / ft 2 /°F-1400BTU / hr / ft 2 /°F之间的储热层。 大约在600BTU / hr / ft 2 /°F-4,800BTU / hr / ft 2 /°F之间的热分布层; 并且对于光泽度控制层,大约在600BTU / hr / ft 2 /°F-6,000BTU / hr / ft 2 /°F之间。
摘要:
For fusing toner images to receiver members, a fusing station is disclosed including an externally heated deformable fuser roller, and a relatively harder pressure roller. The fuser roller includes a core member, a base cushion layer around the core member, a heat storage layer around the base cushion layer, and a thin gloss control layer around the heat storage layer, which fuser roller has an improved fusing efficiency. A ratio of thermal conductivity of the heat storage layer divided by thermal conductivity of the base cushion layer is preferably in a range of approximately between 1.5-7.
摘要:
A method of making a polymeric composition comprising a fluorocarbon-silicone interpenetrating network, comprising the steps of: a) mechanically compounding a fluorocarbon copolymer and metal oxide or hydroxide acid acceptor to form a homogenous mixture; and b) dispersing in solvent the mixture formed by step a) with a polymer selected from a curable polyfunctional poly(C(1-6) alkyl)siloxane polymer; a curable polyfunctional poly(C(1-6) alkyl)arylsiloxane polymer; and combinations thereof, and c) solution milling the dispersion of b) to form a homogeneous blend.
摘要:
A fuser member having an outermost layer comprising a fluoroelastomer with thermally conductive fillers treated with a mercapto-functionalized silane coupling agent that is interactive with a fluoroelastomer to provide a fuser roller surface of decreased toner offset and abrasion and increased toner release and thermal conductivity.
摘要:
A fuser member having a support metallic core and a layer of material formed over the metallic core, an intermediate layer, and an outer layer, the intermediate layer including a cross-linked poly(dialkylsiloxane); one or more multifunctional silanes; one or more amino functional silane crosslinking agents; catalyst; and optional fillers.
摘要:
A fuser member having improved toner offset release and wear characteristics. The outermost layer comprises a fluoroelastomer with thermally conductive fillers selected from aluminum oxide, cupric oxide, and mixtures thereof which are surface treated with a styryl-functionalized silane coupling agent that is interactive with the fluoroelastomer.