| Patent Number |
Title Of Patent |
Date Issued |
| 7567764 |
Developing device having thickness regulating member and image forming apparatus |
July 28, 2009 |
| An developing device in which a developing roller develops an electrostatic latent image on a photo conductor; a developing roller driving unit rotates the developing roller in a forward direction and in a backward direction respectively while development is performed and not perform |
| 7546071 |
Developing device for prevention of coagulate toner adherence and image forming apparatus using |
June 9, 2009 |
| A developing device includes a developer tank, a developing roller, a supply roller, a stirring member, and a doctor blade. The developing device is provided with: a cleaning member detachably provided on a contact portion of the doctor blade with the developing roller, which slides |
| 7418214 |
State detection mechanism |
August 26, 2008 |
| A state detection mechanism includes a movable member, a spring member, a fringesection, and a stopper member. The spring member displaces the movable member arranged at the first predetermined position to a second predetermined position by applying restoration force in a D direction to |
| 7020416 |
Image forming apparatus with arrangement for controlling assembly order |
March 28, 2006 |
| The process frame body has the guide portion, and the development device has the to-be-guided shaft. When the process frame body is unattached to the apparatus main body, the guide portion of the development device is absent, thus preventing proper attachment and positioning of the d |
| 6868239 |
Developer detection device and printer |
March 15, 2005 |
| A detection mechanism is provided with a sealing member made of elastic material for preventing toner leakage between (a) a pierced wall surface of a toner tank through which a rotating shaft is inserted and (b) a second side plate provided on the rotating shaft. With this structure, a |
| 6853821 |
Image forming device and toner device |
February 8, 2005 |
| A toner cartridge stored in a developer casing includes a biasing force generating device, an actuating rod that switches the biasing device between an active state and a non-active state by one movement of a release member. A developer casing swings by the movement of the actuating |
| 6741822 |
Image forming apparatus with members for holding a cartridge |
May 25, 2004 |
| Elastic members are fixed at one end to the housing of an image forming apparatus while their distal ends extend into the framework of the developing unit. When a toner cartridge is fitted to the framework of a developing unit, the distal ends of the elastic members abut the top surf |
| 6405009 |
Image forming apparatus including system for recycling toner |
June 11, 2002 |
| In image forming apparatuses producing recycled toner from residual toner and recycling the recycled toner, the toner composition changes, and the toner properties worsen, because the external additive contained in the collected residual toner that is collected with a cleaning portion |
| 6314258 |
Image forming apparatus realizing stable charging and development characteristics |
November 6, 2001 |
| To provide an image forming apparatus which can realize stable charging and development characteristics, with a high resistance provided on the photoreceptor side.A photoreceptor drum is laminated with a high-resistance layer, and with a photoreceptor layer. A charging roller is provided |
| 6308018 |
Image forming apparatus |
October 23, 2001 |
| The image forming portion of this image forming apparatus includes a LSU, a photosensitive drum, a developing unit holder, a multiple number of developing units, an intermediate transfer element, a transfer element and a fixing unit. All the developing units are of an identical configura |
| 6292639 |
Contact charging device, process cartridge and image forming device having the same |
September 18, 2001 |
| A contact charging device includes a charging roller and a power source, the charging roller having a conductive core, a conductive elastic layer and a coating layer and rotating as being in contact with a photoreceptor drum made up of a conductive body and a photoconductor, and the powe |
| 6282394 |
Toner developing device for an image forming apparatus |
August 28, 2001 |
| In a mono component toner developing device, a developing roller supporting and conveying the mono component toner is arranged in contact with a photoreceptor supporting a static latent image. A supplying roller is arranged opposing the developing roller with a predetermined contact |
| 6212348 |
Developing unit having elastic blade |
April 3, 2001 |
| A developing unit having an elastic blade which is provided with rectangular holes along the width in the area between its abutment portion against a developing roller and the supported end. |
| 5015936 |
Linear driving device for use of a copying apparatus |
May 14, 1991 |
| A linear driving device is used for example in a copying apparatus. The linear driving device has a first and second linear driving section. The sections can displace a drum projection optical mechanism and an original document scanning optical mechanism from respective initial positions |
