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Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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| Number | Title | Issue Date |
| 8032061 | Electrophotographic image forming apparatus having transparent toner and white toner An electrophotographic image forming apparatus including first and second photosensitive bodies, first and second exposing units to form electrostatic latent images on the first and second photosensitive bodies respectively charged to a uniform electric potential, a... | 10/04/2011 |
| 7300139 | Ink jet recording apparatus using charged fine particle-containing ink The ink jet recording apparatus includes an ink jet head that causes an electrostatic force to act on ink containing charged colored particles based on an image signal to eject an ink droplet on a recording medium, an ink supply unit that supplies the ink to the ink... | 11/27/2007 |
| 7212768 | Process cartridge and electrophotographic image forming apparatus A process cartridge detachably mountable to an electrophotographic image forming includes an electrophotographic photosensitive drum; a developing roller; a first cartridge positioning portion abuttable to a first main assembly positioning portion provided in a main... | 05/01/2007 |
| 7158749 | Cleaning device, process cartridge, cleaning member and electrophotographic image forming apparatus A cleaning device used in an electrophotographic image forming apparatus includes a frame, an elastic blade contacting an electrophotographic photosensitive drum to remove a developer remaining thereon, a blade supporting member, and a removed developer containing p... | 01/02/2007 |
| 7156797 | Assembling method for developing roller An assembling method that is for a developing roller usable with a developing device. The developing roller includes a developer carrying member in the form of a hollow cylinder, a flange member provided at an end of the developer carrying member, and a magnet provi... | 01/02/2007 |
| 7158736 | Process cartridge having first and second rotatably coupled frames and electrophotographic image forming apparatus mounting such process cartridge A cartridge detachably mountable to an apparatus includes a drum, a developing roller, first and second frames supporting the drum and roller, a coupling member rotatably connecting the frames, a first cartridge positioning portion abuttable to a first main assembly... | 01/02/2007 |
| 7092658 | Driving force transmission mechanism, image forming apparatus equipped with such a mechanism, and process unit of such an apparatus A drive transmission apparatus includes a first coupling portion having a polygonal shape; a second coupling portion having a hole portion which has a cross-sectional configuration larger than the first coupling portion, the hole portion being engageable with the fi... | 08/15/2006 |
| 7073251 | Disassembling tool for process cartridge The disassembling tool for a process cartridge has a base body, an engagement portion provided on the base body and adapted to be engaged with the process cartridge to thereby position the process cartridge, a pushing-out portion provided for movement relative to th... | 07/11/2006 |
| 7020409 | Apparatus for supplying voltage to developing device An apparatus for supplying a high voltage to a plurality of developer units has a high voltage source generating the high voltage, and a voltage switching unit including a plurality of switching elements provided between the plurality of developer units and the high... | 03/28/2006 |
| 7004650 | Developing device using a developing liquid and image forming apparatus including the same A developing device for developing a latent image formed on an image carrier with a developing liquid includes a liquid storing section for storing the liquid including a developing substance and a carrier liquid. A developer carrier deposits the liquid fed from the... | 02/28/2006 |
| 6978099 | Developing apparatus, process cartridge, and electrophotographic image forming apparatus including an elastic member preventing a gap between a developing agent carrier and a layer thickness limiter from changing, and an electrophotographic image forming apparatus detachably mounting such process cartridge The present invention relates to a developing apparatus for developing an electrostatic latent image formed on an electrophotographic photosensitive drum using a developing agent, including a developing agent carrier for supplying the developing agent to the photose... | 12/20/2005 |
| 6954601 | Process cartridge and electrophotographic image forming apparatus A timing, at which fitting of a first support begins, a timing, at which fitting of a second support begins, and a timing, at which coupling of a high voltage contact and a contact pin provided on a side of a main body begins, respectively are staggered when a cartr... | 10/11/2005 |
| 6954600 | Electric contact member applying voltage to charger, process cartridge, and image forming apparatus The present invention relates to an electric contact member applying a voltage from a voltage applying device to a charger reciprocally moving in a longitudinal direction of an image carrier. The member includes a securing portion electrically connected to a side of... | 10/11/2005 |
| 6941097 | Image forming apparatus having rotary unit for holding multiple developing devices In order to suppress uneven densities in an image, an image forming apparatus includes an image bearing member; a first developing unit, including a first developer carrying member, for developing a first latent image formed on the image bearing member; a second dev... | 09/06/2005 |
| 6538757 | Method for automatically reading electronic tickets An automatic method for reading a graphic field on a ticket so that the ticket may be processed quickly without human error. The graphic field is designed to produce a "tell", a visible known image (a large number of detectable halftone gray steps) when p... | 03/25/2003 |
| 6101354 | Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and such a process cartridge whose developing member is supported at a position which deviates from a developing position A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes an electrophotographic photosensitive member; and developing member for developing a latent image formed on the photosensitive member; T... | 08/08/2000 |
| 6060202 | Toner for developing electrostatic images image forming method and process cartridge An electrophotographic toner including a blend of toner particles, and external additive particles, is provided with characteristic particle size distribution conditions, i.e., (i) a particle size distribution based on a Coulter counter measurement, inclu... | 05/09/2000 |
| 5942095 | Method of continuous purification of liquid toner in an electrostatic printing system A continuous purification method for removing neutral, as well as ionic, contaminants from liquid toner in an electrostatic printing system is disclosed. This method involves circulating liquid toner from a toner supply tank through a common volume which ... | 08/24/1999 |
| 5821023 | Developer of electrostatic latent image, carrier therefor, method for forming image and image forming apparatus thereby The present invention provides a long-life carrier for developing an electrostatic latent image to be used in such field of applications as electrostatic photography and electrostatic recording, a developer of an electrostatic latent image utilizing said ... | 10/13/1998 |
| 5712070 | Toner for developing electrostatic image, image forming method, developing device and process cartridge A toner for developing electrostatic images is constituted by toner particles comprising a binder resin and a colorant. The toner is characterized by having (i) a particle size distribution including a weight-average particle size D4 of X μm a... | 01/27/1998 |
| 5589926 | Color image forming apparatus for forming a color image by transferring color toner to transfer member An apparatus for forming color toner images on an electrophotographic photosensitive drum and transferring the color toner images onto a transfer drum, is provided with plural color development devices positioned along the rotating direction of the photos... | 12/31/1996 |
| 5493384 | Color electro-photographic apparatus with endless-belt-shaped photosensitive member The present invention relates to a desk-top type color electro-photographic apparatus which is easy in use, small in size and light in weight, wherein maintenance such as changing its photosensitive member can be performed by a user and color adjustment i... | 02/20/1996 |
| 5404210 | Continuous purification of liquid toners An electrostatic color printer or copier having a single toner applicator with a system for continuous toner purification. The single applicator is used for each color sequentially and as toning of one color is completed a volume of spent or contaminated ... | 04/04/1995 |
| 5231455 | Air jet cleaner for one pump color imager An electrostatic color printer or copier which uses a single pump for controlling fluid toner at low flow velocities and a separate pump or blower for an air jet used to expel fluid from common passages between applications of different colors. A full wid... | 07/27/1993 |
| 5146278 | Apparatus for applying toner to an electrostatic image An applicator of a developing portion of an image-forming apparatus is permanently located with respect to an image member. A plurality of developing units are separately positionable with respect to said applicator for supplying developer to the applicat... | 09/08/1992 |
| 5075735 | Electrophotographic apparatus using developer that is changed from a solid to a liquid An electrophotographic apparatus utilizes solid developers of a plurality of colors for developing an electrostatic latent image. The solid developers are solid at normal temperature and are changed into liquid by heating. The liquid developers are suppli... | 12/24/1991 |
| 4924806 | Developing apparatus A developing apparatus is disposed adjacent to an electrostatic latent image support member in an image forming apparatus, and includes a rotatable developing sleeve confronting the electrostatic latent image support member, a magnetic roller disposed ins... | 05/15/1990 |
| 4895103 | Automatic cleaning method for image development apparatus A method of cleaning a circulation path of an image developing apparatus using liquid toners. Liquid dispersant is continuously circulated from its supply tank by a pump along lines to a toner applicator then back to the supply tank. Color concentrates co... | 01/23/1990 |
| 4799452 | Liquid toner recycling system and method A toner recycling system having separate supply tank of clear liquid dispersant and tanks of color concentrate. The liquid dispersant is continuously circulated from its supply tank by a pump along lines to a toner applictor then back to the supply tank. ... | 01/24/1989 |
| 4775875 | Electrostatic image toning mechanism A mechanism for toning electrostatic images has two storage means for developer containing toner of different characteristics, for example, different colors. A rotational applicator rotates in one direction to transport developer from one storage, past th... | 10/04/1988 |
| 4706605 | Self-cleaning electrostatic color printer An electrostatic color picture having a single toning shoe for successively and sequentially applying color liquid developers to a color latent image overlay to a sheet disposed against a rotating drum. An electrostatic head scans the sheet in a helical p... | 11/17/1987 |
| 4640605 | Apparatus for forming multicolor electrophotographic images through wet-type developing process An apparatus for forming multicolor electrophotographic images through a wet-type developing process has charging, exposure, development, transfer, and cleaning devices disposed around a rotatable latent image carrier. The development device has at least ... | 02/03/1987 |
| 4627705 | Multiple color liquid developer electrophotographic copying machine and liquid distribution system therefor An electrophotographic copier for selectively printing in one of a number of different colors in which development takes place at a common station around the periphery of a photoconductive drum to which station a distributor system selectively feeds liqui... | 12/09/1986 |
| 4602862 | Valve for a multi-color development system A valve which connects selectably one of a plurality of chambers storing different color developer material therein with a developer housing chamber. The valve has one aperture in communication with one of the chambers and another aperture in communicatio... | 07/29/1986 |
| 4398817 | Magnetic developer apparatus for applying two different colored toners with the same applicator A copying apparatus comprises a photosensitive body and a developing device. The developing device includes a first storage chamber for storing a first red toner, a second storage chamber adjacent to the first storage chamber for storing a second black to... | 08/16/1983 |
| 4157219 | Multi-color electro-static image liquid development apparatus A liquid development apparatus for developing electrostatic latent images borne on the surface of an image bearing medium. The apparatus comprises leading and trailing squeeze rollers in horizontally spaced relation, means disposed between the squeeze rol... | 06/05/1979 |
| 4082061 | Multi-color development system An apparatus arranged to develop a latent image recorded on a member with particles stored in the chamber of the housing. A plurality of differently colored particles are housed remotely from the chamber. Particles of a selected color are advanced to the ... | 04/04/1978 |
| 3970042 | Color development apparatus A multi-color electrostatic printing machine having processing components to produce either a color or black and white copy of an original. Individual development rollers, one for color and one for black and white, are moved into contact with a photocondu... | 07/20/1976 |
