| Patent Number |
Title Of Patent |
Date Issued |
| 7542704 |
Toner carrier apparatus, toner feeding apparatus, and image forming apparatus |
June 2, 2009 |
| Accumulation and coagulation of toner inside a vertically-disposed toner carrying path is properly prevented. The toner carrier apparatus includes: a toner carrier pipe which includes therein a toner carrying path through which toner is carried and is disposed so that the toner carri |
| 7526236 |
Waste developer collecting device, image forming apparatus, and waste developer collecting metho |
April 28, 2009 |
| A waste developer collecting device included in a color tandem image forming apparatus which forms an image using K (black), C (cyan), M (magenta), and Y (yellow) developers includes a collecting container which can be attached to a developing device storing the C developer, a develo |
| 7505711 |
Waste developer collecting device and image forming apparatus provided therewith |
March 17, 2009 |
| A waste developer collecting device ejects and collects a waste developer used in a developing unit employing a two-component developing system in which a developer that contains toner and carrier is used. The waste developer collecting device includes: an opening and closing section for |
| 7440717 |
Developing apparatus and image forming apparatus with toner supply portion opening/closing mecha |
October 21, 2008 |
| In the developing apparatus including a developing bath and a toner transport pipe for supplying toner to the developing bath, a toner supply portion opening/closing mechanism is provided, that includes a shutter member for opening and closing a toner supply port of the toner transport |
| 7395015 |
Toner transport device, toner supply device, and image forming apparatus |
July 1, 2008 |
| A toner transport device includes a toner transport path for passing toner, and a toner transport pipe disposed so as to have an up-and-down direction in which the toner transport path extends. Further, the toner transport device includes a pipe supporting member for supporting the t |
| 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 |
| 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 |
| 6421517 |
Toner supply device with rotatable agitating element |
July 16, 2002 |
| The length of a conveying sheet is set to be greater than the rotational radius of an agitating element so that the distal end of the conveying sheet will slide over the inner wall of the toner container. A slider element having a low frictional resistance is attached at the distal end |
| 6415126 |
Developing unit with agitator and conveying sheet for toner |
July 2, 2002 |
| A toner reserve container provided with a toner replenishing roller and a replenishing port which constitute a toner replenishing portion is arranged adjacent to a developing hopper and is provided with a toner conveying unit. The conveying unit includes an agitator rotated about a r |
| 6385422 |
Developing unit equipped with a toner replenishing device configured with a conveying sheet and |
May 7, 2002 |
| A developing unit includes a developing hopper, a toner reserve container that incorporates a replenishing roller and a replenishing port forming a toner replenishing portion, arranged adjacent to the developing hopper in order to supply the toner to the developing hopper. The toner rese |
| 6360066 |
Developing apparatus having stirring shafts with elliptic stirring vanes |
March 19, 2002 |
| A developing apparatus is equipped with a development casing, a development roller, and developer stirring shafts that rotate together with the development roller. In this developing apparatus, the developer stirring shafts are disposed adjacent to each other and are also disposed su |
| 6347207 |
Developing unit and toner replenishing device with conveying apparatus |
February 12, 2002 |
| A developing unit includes a developer hopper, a toner reserve container that incorporates a replenishing roller and a replenishing opening forming a toner replenishing portion, arranged adjacent to the developer hopper in order to replenish the toner to the developer hopper. The toner r |
| 6272298 |
Developer cartridge |
August 7, 2001 |
| A developer cartridge capable of being fitted to the toner replenishing opening of a developer storage hopper has a sealing member for sealing the toner therein that is bonded to the rim of its replenishing opening to be opposed to the opening of the developer storage hopper. The bottom |
| 6226490 |
Toner replenishing apparatus and image forming apparatus equipped with same |
May 1, 2001 |
| To solve problems that the amount of reuse toner increases with time recovery of reuse toner is efficiently achieved while forming an image of high quality. In a toner replenishing apparatus, toner recovered by a cleaning unit is conveyed via conveying device and contained in a recovery |
| 6041207 |
Apparatus for controlling the movement of magnetized developer material in a latent, electrostat |
March 21, 2000 |
| For realizing a satisfactory and stable developing process, the charge state of a developer and the density of toner particles contained in the developer is kept constant in the developing process. A developing roller to be driven rotationally is provided in a developing tank containing |
| 6035168 |
Developing device having a reduced width in the horizontal direction |
March 7, 2000 |
| A developing device having a reduced size in the horizontal direction and in which a developing agent is transported with stirring along a circulating route inside a developing tank to effectively mix newly added toner therewith and stir the mixture. A developing tank for storing dev |
| 6009295 |
Developing apparatus |
December 28, 1999 |
| Impurities contained in a developer are captured and prevented from mixing into the developer again, thereby to avoid lowering of image quality due to the impurities. Such impurities include aggregates of the developer formed in a developing apparatus, insufficiently charged toner partic |
| 5978632 |
Toner cartridge |
November 2, 1999 |
| The invention is characterized by efficiently and quickly loosening an aggregation of toner material formed in a toner cartridge. A toner cartridge has an L-shaped toner agitating member disposed in a main body thereof having a discharge port for feeding toner at the front surface of |
