摘要:
A seal for a rotary shaft extending from a container containing agitated abrasive particulates through a wall of the container. The seal includes a first polymeric member around the shaft and in engagement with the wall of the container with the shaft rotating inside the first member. The first member is in engagement with a second polymeric member positioned around the shaft for rotation with the shaft and relative to the first member. A third compressible member is positioned around the shaft for rotation with the shaft and the second member. A retaining ring maintains the first, second and third members in compression between the retaining ring and the wall.
摘要:
An improved electrophotographic toning station for use in an electrophotographic printer includes a unitary bearing cap and tension sprocket assembly that allows for the use an intermediate drive chain to drive a primary drive sprocket that drives the toning shell at high speed, through a primary drive chain. A unitary bearing cap and tension sprocket assembly that allows the tension sprocket assembly to be properly located relative to the intermediate and primary drive sprockets, such that the components of the toning station may be adjusted relative to each other without interference from the tension sprocket assembly.
摘要:
An improved electrophotographic toning station for use in an electrophotographic printer includes a unitary bearing cap and tension sprocket assembly that allows for the use an intermediate drive chain to drive a primary drive sprocket that drives the toning shell at high speed, through a primary drive chain. A unitary bearing cap and tension sprocket assembly that allows the tension sprocket assembly to be properly located relative to the intermediate and primary drive sprockets, such that the components of the toning station may be adjusted relative to each other without interference from the tension sprocket assembly.
摘要:
A replenisher for facilitating flow of toner in an electrophotographic apparatus. The replenisher includes a sump for receiving the toner. An beater element having a plurality of blades is rotatably mounted within the sump wherein some of the blades impart a shear force and a normal force along the axis of rotation to the toner while others of the blades impart a shear force and a normal force towards or away from the axis of rotation to the toner as the beater is rotated through the toner. This effectively “aerates” the toner and keeps it mobile within the sump.
摘要:
The invention relates generally to development apparatus for mixing and applying developer material to a latent image on an image-bearing member in an electrostatographic reproduction machine, such as a copier or printer. More particularly, this invention relates to a blender of the type for mixing electrostatographic developer comprising a plurality of blender segments mounted on a shaft. A resilient spacer is provided, according to an aspect of the invention, wherein said resilient spacer and said plurality of blender segments are compressed between said pair of stops. Residual looseness due to tolerance stack-up is eliminated.
摘要:
An electrophotographic printer having an improved flexible drive chain cover located to protect the toning shell drive chain from contamination with toner dust. The electrophotographic printer may include a rigid drive chain cover located adjacent the flexible drive chain guard and locate so that the flexible drive chain guard and the rigid drive chain overlap.
摘要:
An adjustment mechanism for setting up spacing of a development station for a reproduction apparatus within a desired tolerance range such that marking particles from the development station properly develop electrostatic images. The adjustment mechanism includes a datum member and a cam having a locating post for the development station extending from the cam. The datum member includes, for example, a bracket in the reproduction apparatus, and at least one pin attached to the bracket. The cam is adjustably associated with the datum member so as to selectively position the locating post a predetermined distance from the datum member. The adjustable cam includes, for example, a member defining a plurality of spaced openings, the openings capable of receiving the at least one pin of the datum member so as to position the locating post dependent upon which opening the at least one pin is received within. Accordingly, location of the development station relative to the datum member may be set within a desired tolerance range.
摘要:
An apparatus and related method for a self-cleaning toner roller device adjacent a toner roller. The cleaning device having one or more shields to capture the toner debris from the toner roller, a toner debris receptacle to collect the toner debris, and a controller to move the applicator from an operational mode to a self-cleaning mode.
摘要:
A shower curtain retainer assembly for retaining the bottom of a shower curtain against a shower enclosure wall is described. The assembly includes a first set of plastic disks, a second set of plastic disks and a set of magnetically responsive plates. A magnet is encased in each plastic disk. The magnetically responsive plates are attached to the inside wall of the shower enclosure that is adjacent to the bottom of the shower curtain. The first set of plastic disks are positioned on the front face of the shower curtain and are aligned with the positions of the magnetically responsive plates. The second set of plates are positioned on the back face of the curtain in juxtaposition with the first set of plastic disks. The first and second sets of plastic disks are held in place by magnetic attraction forces from the magnets encased in the disks. When the shower curtain is closed, the first set of plastic disks become magnetically attached to the magnetically responsive plates. Because the bottom of the shower curtain is interposed between the first and second sets of plastic disks, it becomes secured against the shower enclosure wall. A variation of the invention includes attaching the magnetically responsive plates to part of the top side of a shower mat which extends over the base and wall of the shower enclosure. The bottom side of the mat is secured by suction cups to the base and wall which also enhances user safety.
摘要:
A developer mixing apparatus, comprising: a housing including a chamber that holds developer, a first ribbon blender disposed within the chamber and elongate along a first longitudinal axis; and, a second ribbon blender disposed within the chamber and elongate along a second longitudinal axis, wherein the first and second ribbon blenders move developer in different directions.