| Patent Number |
Title Of Patent |
Date Issued |
| 7580658 |
Developer container, developer supply device, and image forming apparatus |
August 25, 2009 |
| A toner bottle stores toner in a cylindrical section having an inner circumferential surface provided with a plurality of protruding portions raised inward the cylindrical section. When the cylindrical section is driven to rotate on its central axis, the toner is discharged from the |
| 7251435 |
Developing device and printing device |
July 31, 2007 |
| A developing device is provided, in which respective lateral ends (the portions overlapped with the side seals 27) of the front seal board 23 are adhered/fixed to the side seals 27. More specifically, the gap between the both sides A1 and the return edge A2 of the opening section A o |
| 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 |
| 6792217 |
Use status detecting mechanism and image-producing unit |
September 14, 2004 |
| A use status detecting mechanism includes a cover having an edge portion, in a portion of which a notch is formed, a moving member having a rod member, a spring portion, protrusions and grooves, and a shaft having a driving gear and ribs. In the unused state of a developing unit, the rod |
| 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 |
| 6459867 |
Developing apparatus |
October 1, 2002 |
| A developing apparatus capable of supplying a uniform thin layer of toner and of preventing toner scattering and leakage is provided, where the developing apparatus includes a supply roller for supplying toner to an outer peripheral surface of a toner carrier, the toner carrier for t |
| 6431362 |
Apparatus and method for packaging unit having toner storage |
August 13, 2002 |
| An object of the invention is to transport safely and reliably a unit such as a developing cartridge in which toner is used, and toner, and to reduce the dimensions and cost of an apparatus for packaging such a unit. Two buffer members are fixed to two opposite widthwise end sides of a |
| 6339686 |
Developer unit with cleaning element |
January 15, 2002 |
| A cleaning element is arranged on the backside of the toner layer metering blade, i.e., the side opposite to the surface in contact with the developer support, in order to prevent the cleaning element from damaging the blade surface and the abutment surface of the metering blade against |
| 6163675 |
Image forming apparatus |
December 19, 2000 |
| An image forming apparatus, includes: a rotatable photosensitive member; a charging brush for uniformly charging the photosensitive member; a light scanning and irradiating portion for illuminating the photosensitive member scan-wise; a developing roller for supplying the toner to the |
| 6094550 |
Developing apparatus |
July 25, 2000 |
| An electrophotography developing apparatus has been developed which can protect a developer holder and a layer thickness control member from damage. The device also prevents internal scattering of the developer while preventing a surplus supply of the developer to both ends on the pe |
| 5990924 |
Image forming apparatus |
November 23, 1999 |
| For input image data (`A`) before conversion, each pixel is converted into N (=3) parts. In this case, the three sub-pixels of data corresponding to a recording pixel (black pixel) are converted into recording sub-pixels on both sides of the three (`B`). This eliminates the density varia |
| 5812920 |
Image forming apparatus |
September 22, 1998 |
| In a conveyance path made up of guide plates which guide a copy sheet to a transfer region between a photoreceptor and an opposing transfer device and a second guide plate for conveying the copy sheet to a fixing rollers, the guide plates and the fixing rollers including a pre-fixing gui |
