Class / Patent application number | Description | Number of patent applications / Date published |
399359000 | Recycled to developing unit | 12 |
20080199234 | TONER RECOVERY APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - To provide a toner recovery apparatus including: a toner transporting duct; and an endless toner transporting belt; wherein the toner transporting belt is rotated in a loop form in such a way that it descends in a region where the outer circumferential surface faces a ceiling surface of the toner transporting duct and that it rises in a region where the outer circumferential surface of the toner transporting belt faces a bottom surface of the toner transporting duct, the toner recovery apparatus transports the residual toner to the outlet by holding the toner by the convex parts, spaces formed between convex parts and the bottom surface of the toner transporting duct, and the toner comprises a binding resin, releasing agent, coloring material and external additive, and torque T (mNm) measured by torque measurement method using a conical rotor in a space ratio of 50% to 60% is 1.0 to 2.5. | 08-21-2008 |
20080298866 | DEVELOPING AGENT CIRCULATION SYSTEM AND IMAGE FORMING APPARATUS USING SAME - A development agent circulation unit includes a development unit, an agitation unit, and a rotary feeder. The development unit develops a latent image on an image carrier using a developing agent. The agitation unit agitates developing agent recovered from the development unit. The rotary feeder receives the developing agent from the agitation unit and discharges the developing agent in predetermined discrete amounts. The discharged developing agent is transported to the development unit using a gas stream. The rotary feeder includes a rotor and a stator having a clearance “t” between the rotor and the stator. The clearance “t” satisfies a relation “t<2D” where D denotes a developing agent particle diameter, and a toner particle diameter dt of a toner particle of the developing agent and a carrier particle diameter dc of a carrier particle of the developing agent satisfy a relation D=dc+2dt. | 12-04-2008 |
20090022531 | TONER CARTRIDGE, PROCESS CARTRIDGE, AND METHOD OF MAKING TONER CARTRIDGE REUSABLE - A toner cartridge is configured by integrally arranging a fresh toner storing chamber and a residual toner collection chamber. Fresh toner is filled in the fresh toner storing chamber through a fresh toner filling opening. Residual toner is conveyed in the residual toner collection chamber through a residual toner conveying opening. Two residual toner discharging openings are created in the residual toner collection chamber through which the residual toner is discharged. | 01-22-2009 |
20090041520 | IMAGE FORMING METHOD AND APPARATUS HAVING A UNIT FOR CONVEYING TONER AND CARRIER PARTICLES FROM A CLEANING UNIT TO A DEVELOPING UNIT - An image forming apparatus, using a developer including toner particles and carrier particles, includes a developing unit, a cleaning unit, and a conveying unit. The developing unit contains the developer and develops an electrostatic latent image formed on an image carrying member as a toner image with the toner particles. The cleaning unit contains the developer and mixes the developer with the toner particles collected from the image carrying member after transferring the toner image. The conveying unit conveys a mixture of the collected toner particles and the developer from the cleaning unit to the developing unit. | 02-12-2009 |
20090129837 | DEVELOPING DEVICE USING RECYCLED TONER - According to an embodiment of the present invention, a ratio of a recycled toner in a first developer is detected by an auto toner sensor for recycled toner. The carrying speed of a recycled toner mixer is controlled according to a detection result. Consequently, when recycled toner density in a recycled-toner carrying chamber increases, the recycled toner mixer is rotated at high speed to discharge the recycled toner from the recycled-toner carrying chamber at high speed. | 05-21-2009 |
20090129838 | PARTICLE SUPPLY APPARATUS AND IMAGING APPARATUS - A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination, and a gas discharge unit that discharges gas contained within the particle accommodating unit toward an exterior side of the particle accommodating unit. | 05-21-2009 |
20100290824 | IMAGE FORMING APPARATUS - The image forming apparatus includes plurality of image forming units having photosensitive elements; a plurality of toner containers, cleaning units for removing the toner left on the photosensitive elements, a waste toner recovering container for accumulating the waste toners removed from the photosensitive elements, and waste toner transfer passages connecting the cleaning units and the waste toner recovering container, for transferring the waste toners to the waste toner recovering container. The waste toner transfer passages, which is formed in the image forming unit using the toner container of the largest capacity, for transferring the waste toners in the cleaning units, is to be longest. | 11-18-2010 |
20110002720 | Toner conveyance device, process unit, and image forming apparatus - A toner conveyance device includes a toner conveyance path to convey toner from a lower position to an upper position, a lower holding member and an upper holding member provided in the toner conveyance path, a toner conveyance belt extended among the upper holding member and the lower holding member, running obliquely upward at a lower-side region, running obliquely downward at an upper-side region, and including engagement grooves communicating an inner side and outer side of the conveyance belt formed at predetermined intervals in a running direction of the conveyance belt so as to transfer a drive force, and a guide member provided inside a circulating loop of the conveyance belt to prevent the conveyance belt from entering inside. The lowest portion of the guide member at the upper-side region is placed on a substantially vertical line drawn from a belt delivery part of the lower holding member. | 01-06-2011 |
20150078796 | IMAGE FORMING APPARATUS - An image forming apparatus includes a collection container for collecting toner discharged from an image forming station, the collection container being movable between a mount position in which the collection container is mounted in the apparatus and a removable position in which the collection container is removable from the apparatus; and a door provided on the apparatus to permit access into the apparatus; wherein a track of the collection container when collection container is moved from the mount position to the removable position overlaps a track of the openable member when the openable member is opened and closed, and wherein when the openable member is in the opening position, the collection container is incapable of removing from the main assembly, and when the openable member is in the closing position, the collection container is removable from the main assembly. | 03-19-2015 |
20150362886 | IMAGE FORMING APPARATUS - When the outer diameter of a charging member | 12-17-2015 |
20160041504 | IMAGE FORMING APPARATUS AND METHOD OF SWITCHING COLLECTED DEVELOPER ROUTE IN IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearer; a developing device; a transfer device; a waste-developer container; a developer collecting device including a collected-developer conveyor, a waste channel, a reuse channel, and a channel switching member to switch a route between the waste channel and the reuse channel; a switching determiner to determine whether to dispose or reuse collected developer; an operating condition data collector to collect and store operating condition data used as a degradation speed index of developer in the developing device; a determination type selector to select, according to the degradation speed index, one of a first determination type based on an operating amount and a second determination type based on developer replacement data indicating an amount of developer replaced with supplied developer in the developing device; and a switching controller to control the channel switching member according to determination made by the switching determiner. | 02-11-2016 |
20160062304 | CARTRIDGE ASSEMBLY AND SHUTTER ASSEMBLY FOR IMAGE FORMING APPARATUS - Provided is a cartridge assembly for an image forming apparatus, including a drum unit provided with a waste toner conveying means which conveys waste toner collected from a surface of a photosensitive drum to one side; a developing unit connected with the drum unit, configured to receive the waste toner collected from the drum unit, and having a developer discharging means to discharge a developer therein to an outside; and a developer collecting unit integrally formed with the drum unit at one side of the drum unit, and configured to collect the developer discharged by the developer discharging means of the developing unit, wherein the drum unit includes a toner injecting means which connects the waste toner conveying means, a new toner supply unit and the developing unit so that the waste toner conveyed by the waste toner conveying means and new toner supplied from the new toner supply unit are injected together into the developing unit. Since the waste toner may be reused together with new toner and the developer may also be discharged, it is possible to reduce toner consumption and to prevent the quality of a printed image from being degraded. | 03-03-2016 |