摘要:
An electrostatographic imaging member assembly comprising a hollow electrostatographic imaging drum having a first end and a second end, at least one coating on the drum extending from the first end of the drum to the second end of the drum, the coating having an outer electrostatographic imaging surface, drum supporting hubs mounted on the first end of the drum and the second end of the drum, the drum supporting hubs comprising a disk shaped member comprising a disk shaped segment having an exposed annular landing strip surface parallel to and flush with the electrostatographic imaging surface, the annular landing strip surface having a width of at least about 3 millimeters and having an imaginary axis coextensive with an imaginary axis of the drum. The electrostatographic imaging member assembly may be utilized in electrostatographic imaging apparatus in which the hubs support electrostatographic imaging apparatus subassembly components. The electrostatographic imaging member assembly is fabricated by coating the entire external surface of the substrate and mounting the hubs to the ends of the resulting coated substrate.
摘要:
A reusable photoreceptor assembly has a gear assembly removable from a photoreceptor. A square leaf spring or ring is used to secure and remove the gear assembly to and from the photoreceptor, thereby avoiding damage to both the gear assembly and photoreceptor during the removal of the gear assembly. The undamaged gear assembly and photoreceptor may then be reused.
摘要:
A hub for supporting a tube is provided. The hub includes an expandable body adapted to be mounted at least partially in the tube and a resilient urging member. The urging member has at least a portion of the urging member internal to the body to expand the body so that a portion of the body contacts the tube.
摘要:
A hollow cylindrical electrostatographic imaging member supporting end flange including a disk shaped member, a supporting hub extending axially from the disk shaped member and a metal disk coaxially secured to the hub, the disk comprising a plurality of rectangular tabs extending radially from the disk in a direction away from an imaginary axis of the hub for engagement with the hollow cylindrical electrostatographic imaging member upon insertion of the hub and disk shaped member into one end of the hollow cylindrical electrostatographic imaging member. When this end flange is inserted into one end of the hollow cylindrical electrostatographic imaging member, the plurality of rectangular tabs extending radially from the disk engage the inner surface of the hollow cylindrical electrostatographic imaging member.
摘要:
An apparatus for coating a photoreceptor substrate, such as a photoreceptor belt or a photoreceptor drum, consists of at least one photoreceptor coating fluid reservoir or diptank. The diptank defines an inlet at one end and a conduit with an orifice at the other end. The conduit includes at least one porous element such as a grid, screen or mesh arranged for suspending a plurality of layers of non-contaminating rounded objects, such as stainless steel or glass beads, in the bottom of the conduit. Photoreceptor coating solution supplied to the inlet is thereby forced to flow through the plurality of layers of beads prior to coating a photoreceptor substrate that is inserted through the orifice. As a result, the uniformity of the coating solution is improved as it coats the photoreceptor substrate, thereby reducing coating defects in the finished photoreceptor belt or drum.
摘要:
A device for supporting a hollow substrate having two open ends in an aligned orientation, wherein one end of the substrate is engageable with a chuck assembly, including: (a) a base for contacting the other end of the substrate; (b) a post coupled to the base, wherein a section of the post is positioned within the substrate, thereby defining a substrate disposed post section; and (c) a spring apparatus coupled to the substrate disposed post section, wherein the spring apparatus is disposed within the substrate and contacts the substrate interior surface, wherein the spring apparatus is compressed by the substrate during misalignment of the substrate with the device and the compressed spring apparatus springs back to push the substrate to the aligned orientation with the device.
摘要:
There is disclosed a dip coating method for fabricating a photosensitive member employing a substrate which defines a top non-imaging portion, a middle imaging portion, and a bottom non-imaging portion, wherein the method comprises: (a) immersing the bottom non-imaging portion, the middle imaging portion, and optionally a part of the top non-imaging portion of the substrate in a coating solution; (b) raising the middle imaging portion out of the coating solution; and (c) raising the bottom non-imaging portion out of the coating solution at a take-up speed which is decreasing from the take-up speed of the substrate at the junction between the middle imaging portion and the bottom non-imaging portion, thereby reducing the size of any bead on the bottom non-imaging portion.
摘要:
A method is disclosed for heating a portion of an article comprised of nickel, formed by electrodeposition, and possessing an internal stress sufficient to shrink the outer cross-sectional dimension upon application of heat, thereby shrinking the outer cross-sectional dimension of the heated portion. The method may be used to couple the article to other members such as end flanges without the use of an adhesive.
摘要:
An endless belt is disclosed comprising: (a) an electrodeposited metal layer having a first end region and a second end region; and (b) an electrically conductive stiffening member integrated with the first end region. There is also disclosed a process comprising: (a) positioning a first electrically conductive stiffening member in a first end region of a mandrel; (b) depositing a layer of metal over the mandrel and over the first stiffening member to form an article comprised of a first end region, and thereby integrating the first stiffening member with the first end region of the article; and (c) removing the article and the integral first stiffening member from the mandrel.
摘要:
A method and apparatus for cleaning photoreceptor substrates where at least one substrate is rotated in a bath of moving dry ice particles. The dry ice particles contact the outer surface of the substrate, melt locally upon contact and refreeze to capture particulate contaminants on the outer surface of the dry ice particles. An inert gas counter current to the flow of moving dry ice particles is supplied to enhance cleaning efficiency and assist in removing carbon dioxide, contaminants and small dry ice particles.