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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8045902 | Developer conveying apparatus and image forming apparatus A developer conveying apparatus includes a first developer storing portion, a second developer storing portion, and a conveying pipe that connects the first and second developer storing portions. The conveying pipe includes a tubular main body and a conveying member... | 10/25/2011 |
| 7983604 | Magnetic scavenger for an electrostatographic printer An apparatus and method for managing magnetic carrier in an electrostatographic printer including an apparatus for directing magnetic carrier from a photoconductor, back toward a feed apparatus wherein the apparatus includes a magnetic carrier scavenger such that th... | 07/19/2011 |
| 7831181 | Developing device In an embodiment, a reducing plate that dams up a part of a developer scraped up by a blade is provided. The reducing plate suppresses swell of the developer held up by a discharge mixer from fluctuating according to the rotation of the blade. Fluctuation in an exce... | 11/09/2010 |
| 7356291 | Developing unit, image forming apparatus method that supplies inverse transfer preventing agent with inverse polarity An image forming apparatus of the invention holds a first developing agent of a first color and inverse transfer preventing agent, supplies the first developing agent with predetermined potential, supplies the first developing agent to an image portion of an image c... | 04/08/2008 |
| 7236729 | Electrophotographic toner regulating member with induced strain outside elastic response region A toner layer regulating system for an electrophotographic image forming apparatus comprises a toner carrier; a metallic toner regulating member having a stress-strain curve prior to assembly with an elastic region, an inelastic region, and an initial yield stress v... | 06/26/2007 |
| 7162190 | Toner feeder The toner feeder is removably mounted in an image forming apparatus including a rotation driver for rotating a toner container and a rotation controller for controlling the rotation driver. The toner feeder comprises a toner container for containing toner, and a sup... | 01/09/2007 |
| 7158745 | Method and device to regulate toner in an image forming device A device to regulate toner within an image forming apparatus. The regulating member has a first section and a toner regulating edge with at least one gap. The regulating member controls the amount of toner that is distributed on the surface of the toner developer ro... | 01/02/2007 |
| 7142798 | Carrier bead pickoff device A carrier bead pickoff device is provided for removing ferromagnetic carrier beads from a developed image-carrying surface of a moving photoreceptor in an electrostatographic image reproduction machine. The carrier bead pickoff device includes (a) an elongate statio... | 11/28/2006 |
| 7099609 | Developing device A developing apparatus includes a developing container for containing a developer comprising toner and a carrier, said developing container is partitioned into a first chamber and a second chamber constituting a circulation path of the developer; a first developing ... | 08/29/2006 |
| 7040826 | Imaging devices and related cleaning means Imaging apparatus in accordance with the present invention generally include a housing and a portal defined therethrough, whereby a vacuum filter cartridge can be placed in an operable position within the housing by way of the portal. The vacuum filter cartridge can... | 05/09/2006 |
| 6987940 | Developing apparatus A developing device having a plurality of developing devices for developing an electrostatic image formed on an image bearing member by a developer including a toner and a carrier, a rotary member carrying the plurality of developing devices therein and rotated in a... | 01/17/2006 |
| 6975826 | Device and method to lift magnetizable carrier particles from a mixture of toner particles and magnetizable carrier particles In a device and method for lifting magnetizable carrier particles from a mixture of toner particles, a cover of a collecting element interface device is arranged such that it can be rotated around a stator with a magnet. The cover comprises a spiral that, given rota... | 12/13/2005 |
| 6973281 | Developing apparatus with two developing chamber-rotatable member pairs A developing apparatus includes a developing container for containing a developer comprising toner and a carrier, said developing container is partitioned into a first chamber and a second chamber constituting a circulation path of the developer; a first developing ... | 12/06/2005 |
| 6472115 | Image forming apparatus and image forming method An image forming apparatus of the present invention includes a particle conveying body made up of a light-transmitting conductive layer, an insulative'screen provided on the conductive layer and formed with a number of pores, and a screen electrode formed... | 10/29/2002 |
| 6442354 | Scavenger plate monitoring system A protection circuit for an electrophotographic image-forming apparatus is disclosed. The protection circuit monitors the operational state between the power supply and scavenger plate of the electrophotographic image-forming apparatus and issues an inter... | 08/27/2002 |
| 6067433 | Developing apparatus for regulating the amount of developer in the vicinity of repulsive magnetic pole A developing apparatus includes a developer bearing member, a first magnetic pole and a second magnetic pole of a same polarity as that of the first magnetic pole, and a regulating member. A regulating portion of the regulating member is provided within a... | 05/23/2000 |
| 6047154 | Developing apparatus A developing apparatus includes a developing device having a first magnetic pole opposed to an image carrier on which an electrostatic latent image is formed, and a second magnetic pole of the developing device arranged at a predetermined angle to the fir... | 04/04/2000 |
| 6032012 | Developing device, image forming unit and color image forming apparatus, both having the developing device A developing device used in an image forming apparatus has a developing roller at a lower opening of a toner hopper, and the developing roller contacts a photosensitive drum to form a developing portion therebetween. The hopper stores nonmagnetic toner an... | 02/29/2000 |
| 5911098 | Development apparatus and method using selectively applied AC voltages A development apparatus according to the invention comprises at least two developer carrier members in juxtaposition for transporting a developer material to a development region between the developer carrier members and an image bearing member in opposed... | 06/08/1999 |
| 5752139 | Dual-component magnetic brush developing device A dual-component magnetic brush developing device using a dual-component developer containing magnetic carriers and toner electrically attracted to the magnetic carriers. The dual-component magnetic brush developing device comprises: a magnetic field gene... | 05/12/1998 |
| 5752138 | Vacuum assisted bead pick off apparatus having a spiral plural level surface An apparatus for removing magnetic granules from a moving imaging surface in a region between a developer station and a transfer station is provided. The apparatus includes a removing member located between the developer station and the transfer station. ... | 05/12/1998 |
| 5715503 | Method and apparatus for scavenging carrier employing a magnetic field and erase radiation Magnetic carrier particles are removed from a photoconductive image member by subjecting the carrier particles to a magnetic field while or after exposing the photoconductive image member to erasing radiation in the absence of a substantial electrical fie... | 02/03/1998 |
| 5713064 | Method and apparatus for forming toner images with two distinct toners The scavenging of a first toner into a second toning station in a DAD-CAD or CAD-DAD process can be reduced by allowing scavenged toner to deposit in the background of single color images. The polarity of the first toner of the scavenged toner is not chan... | 01/27/1998 |
| 5649271 | Air handling system for a development housing An apparatus for developing a latent image recorded on a surface with toner. The apparatus includes a housing having a supply of toner therein; a donor member arranged in the housing to transport toner to a development zone adjacent the surface; a detachi... | 07/15/1997 |
| 5555469 | Image forming apparatus having toner recycling device with electrostatic conveyor An image forming apparatus of the type collecting a toner remaining on the surface of an image carrier after image transfer and returning it to a developing unit to use it again. The apparatus separates the toner from paper dust and other impurities befor... | 09/10/1996 |
| 5543901 | Electrophotographic developing method using magnetic developing material and apparatus employed therefor An electrophotographic method and an apparatus employed for effecting the method, in which a photoreceptor drum having a fixed magnet member in it is employed. After forming an electrostatic latent image on the surface of the photoreceptor drum, the photo... | 08/06/1996 |
| 5508784 | Speed control for color image forming apparatus with residual toner cleaning A color image forming apparatus includes a driving member to drive a rotational photoreceptor to rotate, a speed detector to detect speed information of the photoreceptor, and a mechanism in which a pressure-contact and pressure-contact release operations... | 04/16/1996 |
| 5504559 | Method for image formation The present invention relates to a method for image formation in which an electrostatic latent image is formed on an image supporting member having a carbon-based high-hardness surface coating layer. The electrostatic latent image is developed with a tone... | 04/02/1996 |
| 5475467 | Sealing member, and process cartridge and image forming apparatus using same A sealing member for preventing toner from leaking, having a first lip portion which abuts against a frame member, a second lip portion which abuts against the longitudinal end portion of a blade member, and a third lip portion which abuts against a rotar... | 12/12/1995 |
| 5475469 | Image forming equipment with depletion detection in an toner endless circulation path Image forming equipment, which includes a developing device for supplying toners to the surface of a photosensitive member and developing a latent image on the surface of the photosensitive member to thereby form a toner image; a cleaning device for remov... | 12/12/1995 |
| 5404215 | Developed bead pick-off device To remove ferromagnetic carrier beads from the surface of a photoreceptor leaving a development station in an electrophotographic machine, the carrier beads are magnetically attracted to the surfaced of an elongated, rotating cylinder. The cylinder surfac... | 04/04/1995 |
| 5390015 | Carrier removal in an electrophotographic image formation method In an electrophotographic image formation method including the steps of uniformly charging a photoconductor, exposing the charged photoconductor to a digitally-processed light image to form a latent electrostatic image, and developing the latent electrost... | 02/14/1995 |
| 5379094 | Vacuum assisted bead pick off apparatus employing a plural level surface-hybrid air knife An apparatus for removing magnetic granules from a moving imaging surface in a region between a developer station and a transfer station is provided. The apparatus includes a member, interposed between the developer station and the transfer station. The m... | 01/03/1995 |
| 5363183 | Copying machine with device for removing carrier beads from the photoconductive surface An apparatus for removing magnetic carrier beads and similar particles from a photoconductive surface includes a magnetic roller for magnetically attracting and removing the beads from the photoconductive surface. A housing has at least one v-shaped suppo... | 11/08/1994 |
| 5355202 | Method using magnetic member to retain magnetic carrier of developer on a drum in electrophotography A transfer method for electrophotography uses a two-component developer including a magnetic carrier and a magnetic toner. The toner is transferred to a recording sheet while holding the magnetic carrier on a surface of a developer-holding body with a mag... | 10/11/1994 |
| 5283617 | Development apparatus employing magnetic field shapers An electrophotographic printing machine in which an electrostatic latent image is recorded on a moving photoconductive surface by charging the appropriate areas of the surface to predetermined polarities. The latent image is a developed in a development z... | 02/01/1994 |
| 5280323 | Development apparatus employing magnetic field shapers An electrophotographic printing machine in which an electrostatic latent image is recorded on a photoconductive surface by charging the appropriate areas of the surface to predetermined polarities. The latent image is a developed with toners of a preselec... | 01/18/1994 |
| 5225880 | System for removing agglomerates from a developed image on a photoreceptor using a vacuum An agglomerate removal device for removing unwanted particles from images on a photoreceptor includes vacuum pick off source and baffles that create a controlled aerodynamic drag under the photoreceptor before the images reach a transfer station. Removing... | 07/06/1993 |
| 5220392 | Electrophotographic printer The invention provides an electrophotographic printer wherein a toner unit and the entire apparatus can be reduced in size and the degree of freedom in designing can be achieved and besides possible deterioration of a photosensitive member can be prevente... | 06/15/1993 |
| 5216467 | Brush-based carrier bead removal device for a developer housing in a xerographic apparatus A device prevents the migration of particles from the edge of a moving surface, such as a photoreceptor in an electrophotographic printing apparatus. A brush in contact with an edge of the surface includes fibers of a first type, and fibers of a second ty... | 06/01/1993 |
