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| Number | Title | Issue Date |
| 6256465 | Image forming apparatus and image forming unit therefor An image forming apparatus capable of obviating a defective image ascribable to image transfer and an image forming unit therefor are disclosed. A nonconductive sheet member is affixed to the surface of a conductive sheet member which will face a paper or... | 07/03/2001 |
| 4514077 | Magnetic toner developing device A magnetic toner developing device for developing images on a photoconductive sheet. The device includes a magnetic developer roller brush for applying a single component toner to the sheet. An electrically isolated guide plate extends beneath the develop... | 04/30/1985 |
| 4465361 | Apparatus and method for developing electrographic sheets Apparatus and method for developing electrostatic charge patterns on discrete electrographic sheets. The trail edge of a sheet and the lead edge of a successive sheet are overlapped to form a shingled train of sheets. The shingled train of sheets is then ... | 08/14/1984 |
| 4419959 | Magnetic toner retainer means A magnetic toner developing system has a hopper feeding magnetic toner to a magnetic roller brush positioned over a non-magnetic guide that supports a sheet in its passage through a development zone. A plurality of magnets are mounted beneath the guide an... | 12/13/1983 |
| 4334760 | Toner mechanism for electrophotographic recorder A toner mechanism is shown which utilizes a paper roller to pass a sheet of paper between the roller and a toner brush where toner is applied to the surface of the paper and attracted to electrostatically charged portions on the surface thereof. The toner... | 06/15/1982 |
| 4300475 | Toning system A toner container is shown which includes a toner brush that moves toner to a rectangular opening partially closed by flexible triangular masks for restricting the flow of toner into contact with a sheet of paper to cause the toner to diverge as it flows ... | 11/17/1981 |
| 4128328 | Developing electrode type electrostatic copying machines An electrostatic copying machine uses a copy sheet having a dielectric layer or photoconductive layer overlaying an electrically conductive layer, and includes image forming structure for forming an electrostatic latent image on the copy sheet, a develope... | 12/05/1978 |
| 4127084 | Image support for dry development device A dry development device for reproduction machines, wherein the device includes a rotating magnetic brush for distributing development powder on an image support. The image support is advanced on a planar surface which has an opening therein positioned be... | 11/28/1978 |
| 4126100 | Apparatus for causing a developer powder to make an irregular motion in a developing zone An apparatus for developing an electrostatic latent image formed on the surface of an electrostatic latent image-bearing material by applying a powdery developer, wherein means are provided for bringing the surface of a developer-retaining member retainin... | 11/21/1978 |
| 4120263 | Matrix supporting devices in electrostatic development apparatus Improvements to a matrix supporting device in electrostatic development apparatus, wherein the pliers retaining the matrix rear portion can be moved along a cylindrical surface to which said matrix is intended to adhere. A cam controlled oscillating suppo... | 10/17/1978 |
| 4091765 | Developing and fusing apparatus A developing and fusing apparatus for applying a single component magnetically responsive dry particulate toner powder to a latent electrostatic image on electrostatic copy paper and fusing the thusly applied toner powder onto the surface of the copy pape... | 05/30/1978 |
| 4088402 | Photocopying apparatus with magnetic brush developer and sheet guide Photocopying apparatus includes a magnetic brush for applying toner to a copy sheet having a photoconductive coating. The apparatus also includes an illuminating station for receiving a document having an image thereon, a lens system for projecting the il... | 05/09/1978 |
| 4026242 | Matrix supporting device in electrostatic development apparatus A matrix supporting device in electrostatic developing apparatus, wherein the matrix is moved to a position in front of the magnetic developing roller while adhering to a rotable cylindrical surface, the axis of rotation of which is at a fixed spacing fro... | 05/31/1977 |
| 4014291 | Image developing system A system for developing a latent electrostatic image pattern formed on a coated photoconductive paper and which utilizes a nonconductive transfer cylinder that encloses a rotating cylindrical magnet. The magnet produces a longitudinally uniform magnetic f... | 03/29/1977 |
| 3941469 | Dry type developing device for a copying apparatus or like apparatus A dry type developing device built in a copying apparatus or like apparatus for developing an electrostatic latent image formed on a copy sheet by means of a magnetic brush wherein the device is provided with sheet guide means and receiver means which hav... | 03/02/1976 |
