摘要:
A toner layer regulating system for an electrophotographic image forming apparatus includes a toner carrier; a toner regulating member (e.g., doctor blade) disposed proximate the toner carrier, with the toner regulating member having a first surface disposed toward the toner carrier and forming a nip with the toner carrier. The toner regulating member comprise a flexible metallic substrate and a metallic coating on the first surface in an area thereof forming the nip. The coating on the toner regulating member comprises a material selected from the group consisting of molybdenum, tungsten carbide, and alloys thereof. The coating may be substantially homogeneous and/or have a thickness of not more than 30 um. The coating may have a relatively smooth surface roughness of ≦2.0 um Ra.
摘要:
A toner layer regulating system for an electrophotographic image forming apparatus includes a toner carrier; a toner regulating member supported in cantilevered fashion against the toner carrier so as to form a toner nip therebetween comprising a flexible metallic substrate having a coating covering at least an area forming the nip; wherein the coating comprises at least a matrix of a base polymer and a plurality of fine particles having a particle size of 0.1 microns to thirty microns; wherein the coating has a thickness of approximately one hundred fifty microns or less; wherein the coating has a surface roughness in the range of 0.15 to 1.5 microns Ra and in the range of 1 to 15 microns Rz. A carrier stratum may be disposed between the coating and the substrate, and the coating may be single layer or have a plurality of layers.
摘要:
The present invention relates to conductive adhesives that may be used within an image forming apparatus. The image forming apparatus may include printing devices such as inkjet printers, electrophotographic printers, copiers, faxes, all-in-on devices or multi-functional devices. The conductive resins may be applied to the shaft of foam rolls suitable for transporting and applying image forming material in an image forming apparatus such as a laser printer.
摘要:
A doctor blade may be mounted between a pair of L-shaped brackets. The brackets may include a pair of opposed openings that receive mounting posts which extend outwardly from the printer housing. A pair of threaded fasteners may be used to secure the assembly of brackets and doctor blade to the housing. The L-shaped brackets may include a long end and a shorter end, the longer end supportable on a land provided on the printer housing. The longer end of one of the brackets may overlap the longer end of the other of the brackets so that the doctor blade may flex away from one of the brackets.
摘要:
A roller capable for use as a developer roller in a printer including a roll body having a surface, wherein the roller provides a first surface flexibility (SF1) when the roller rotates in one direction and a second surface flexibility (SF2) when said roller rotates in a second direction.
摘要:
The present invention relates to seals which may be used in an image forming apparatus. The seals may prevent the leakage of image forming materials, e.g. as between a blade and an image forming apparatus housing.
摘要:
A system and method reduces wear on an image-forming device. The image-forming device includes one or more toner cartridges, each having an associated PC drum and transport member to transport toner images or media. Each of the PC drums maintain contact with a surface of the transport member regardless of whether they are being used to form a toner image. A controller controls the rotation of the PC drums to rotate or not rotate while in contact with the surface of the transport member.
摘要:
The present invention relates to seals which may be used in an image forming apparatus. The seals may prevent the leakage of image forming materials, e.g. as between a blade or a roll and an image forming apparatus housing.
摘要:
The present invention relates to seals which may be used in an image forming apparatus. The seals may prevent the leakage of image forming materials, e.g. as between a blade and an image forming apparatus housing.