摘要:
A contact fusing apparatus comprising a heated roll structure cooperating with a pressure roll structure to form a nip through which support material carrying toner images thereon is moved with the toner images contacting the heated roll structure. The contact fuser is characterized by the provision of stripping means for insuring removal of the support material from the heated fuser roll and a roller structure interposed between the stripper means and the nip which roller contacts the support material to thereby restrain the material while the leading portion of the material is being stripped from the heated roll structure. The result of stripping while restraining is to minimize the degree of curling of the copy paper.
摘要:
A magnetic brush developing arrangement including a roll for delivering developer to an electrostatic latent image-bearing surface and a regulating plate movable towards and away from the roll as a function of the clearance between the roll and the image bearing surface.
摘要:
A heated roll fixing device for electrophotographic copying machines, wherein said device is provided with a first roll 4 which is coated on the surface with a heat-resistant releasing agent 2 , said first roll being adapted to contact toner images 6 on a supporting body 7 . A second roll 5 cooperating with said first roll 4 for pressure-heat-fixing the toner images to said supporting body 7 . The fixing device is characterized in that either said first roll 4 or second roll 5 but at least said first roll 4 is provided with an inner heating means 3, and an outer heating means 13 with small heat capacity is provided in a manner to surround said first roll 4 as illustrated in FIG. 4 of the drawings.
摘要:
A sheet removing device for use in an electrophotographic copying machine which removes unstripped sheets from the photosensitive body by providing feed rollers which rotate in reverse upon a stripping failure to pull the sheet off the photosensitive body by acting on the trailing edge portion of the sheet.
摘要:
A device for preventing movement of an original document on the platen of a copier where the platen reciprocates is disclosed having a protrusion that is adapted to adhere to the platen cover. The protrusion is locatable according to the size of the original document being copied and applies pressure in a concentrated area on the platen or the document to prevent movement of the original document while being copied.
摘要:
A display and printing method using an electrochromic imaging material. The electrochromic material forms a colored image in response to the formation of an image pattern on a photoconductive surface. The electrochromic material is between an electrode and the photoconductive surface when image formation takes place. The image may be utilized in a display device or in printing.
摘要:
A xerographic color reproduction imaging system is disclosed. This color system provides at least a two color image with one exposure and avoids the necessity of employing a registration step. A sensitized photoconductive layer is employed which is charged, selectively exposed and developed with a color toner. The photoconductive layer is then recharged and developed with toner of another color.
摘要:
A copying machine includes a system for projecting an image of an original onto a photosensitive member selectively at one of a plurality of magnifications. The projection system includes two lenses. A movable carriage supports the lenses. The carriage is arranged for movement between a first position wherein one of the lenses is operative and a second position wherein the other of the lenses is operative. Adjustable stops are provided for stopping the carriage at the first or second positions. An overcenter device responsive to the movement of the carriage more than half its distance of travel between the first and second positions operates to move and bias the carriage against the stops.
摘要:
A cartridge tray for use with a copying machine and having pressor pads adapted to be automatically reset to their operative or bias generating position upon positioning the tray in the copy machine.
摘要:
A paper tray for copying machines includes a tray body having a movable side plate and an elastic member operatively connected to the movable side plate whereby as the tray is inserted into a copying machine, the elastic member in cooperation with an actuator on the copier, urges the movable side member against paper placed in the tray and thereby automatically compensates for paper skew as well as paper irregularities.