Patent application number | Description | Published |
20080205937 | IMAGE DEVELOPER, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An image developer, including a rotatable developer bearer; a rotatable developer feeding member contacting the developer bearer; a developer container located above the developer feeding member, wherein the developer container includes a pressure reducing member configured to reduce a pressure applied to the developer feeding member; and a first stirring bar located directly below the pressure reducing member and configured to stir a developer such that a gap between an end of the pressure reducing member and an outer diameter of the stirring bar is 6 mm. | 08-28-2008 |
20100003055 | POWDER CONVEYANCE DEVICE - A powder conveyance device includes a powder conveyance pipe having a first conveyance section communicating with the powder container section and having a supply inlet to receive powder from a powder container. A second conveyance section is provided in the powder conveyance pipe to communicate downstream with the first conveyance section via a first bending section. The second conveyance section downwardly extends to the conveyance destination being inclined from a horizontal at a larger angle than the first conveyance section. A third conveyance section is also provided in the powder conveyance pipe to communicate downstream with the second conveyance section via a second bending section. The third conveyance section extends toward the conveyance destination being inclined from the horizontal at a smaller angle than the second conveyance section. The third conveyance section has a replenishment outlet for replenishing the powder from the powder conveyance pipe to the powder conveyance destination. A space restriction member is provided and is at least arranged in the second conveyance section and partially closes an inner space of the second conveyance section. | 01-07-2010 |
20100034557 | Process cartridge and image forming apparatus employing same - A process cartridge detachably attached to an image forming apparatus includes a first subunit, a second subunit, a first positioning member, and a second positioning member. The first subunit accommodates a photoconductor therein. The second subunit accommodates a developer applicator therein. The photoconductor and the developer applicator are arranged substantially parallel to each other to define a development gap therebetween. The first positioning member is fastened to both the first and second subunits to position ends of the photoconductor and the developer applicator on a first side of the respective subunits. The second positioning member is fastened to only one of the first and second subunits to position ends of the photoconductor and the developer applicator on a second side of the respective subunits opposite to the first side. An image forming apparatus employing such a process cartridge is also disclosed. | 02-11-2010 |
20100111572 | DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A development device includes a screw conveyer to convey powder contained in a development casing in a direction along a shaft of the screw conveyer, a bearing in which the screw conveyer is inserted, a cylindrical member provided around the screw conveyer and disposed between the screw conveyer and the bearing, the cylindrical member including a flange portion that projects from the cylindrical member toward an outside diameter of the shaft of the screw conveyer, and a powder pressure disperser to reduce pressure of the powder transported by the screw conveyer provided upstream from the flange portion in a direction in which the screw conveyer conveys the toner, the powder pressure disperser provided around and extending outward in directions perpendicular to the shaft of the screw conveyer and having an outer diameter larger than an outer diameter of the flange portion. | 05-06-2010 |
20100129118 | POWDER SUPPLYING DEVICE AND IMAGE FORMING APPARATUS - A powder supplying device includes a powder container frame, a powder container detachably installable in the powder container frame horizontally and including a container body in which a discharge port through which powder is discharged from the container body is formed, a shutter member attached to the container body to open and close the discharge port by moving along the container body in a direction in which the powder container is installed, and at least one shutter control member movably attached to the powder container frame. The shutter control member opens and closes the shutter member by moving together with the powder container as the powder container is fitted into and pulled out from the powder container frame. | 05-27-2010 |
20110058857 | TONER CONTAINER, IMAGE FORMING APPARATUS INCLUDING SAME, AND CONNECTING STRUCTURE FOR CONNECTING TONER CONTAINER AND IMAGE FORMING APPARATUS - A toner container includes a cylindrical container body, a cap having a toner outlet, and a shutter. The cap includes a primary positioning primary positioning hole, formed in a top front surface perpendicular to a longitudinal direction of the toner container, extending in the longitudinal direction, to determine an installation position of the cap relative to the image forming apparatus, a secondary positioning hole, formed in a bottom front surface perpendicular to the longitudinal direction of the toner container, extending in the longitudinal direction forward the toner outlet, to subsidiary determine the installation position of the cap, and a first restriction member to position the cap in a horizontal direction perpendicular to the longitudinal direction, projecting vertically upward from an outer circumferential surface of the cap and symmetrical about a virtual perpendicular line passing through a cross-sectional center position of the primary positioning hole perpendicular to the longitudinal direction. | 03-10-2011 |
20140093267 | IMAGE FORMING APPARATUS AND IMAGE FORMING PROGRAM - There is provided an image forming apparatus including: a formation unit that forms an image using a color material, on a medium; a fusing unit that fixes the image formed on the medium; and a control unit that controls to perform both of a first fusing and a second fusing on the medium, wherein the first fusing is a fixation in which a first image is formed by using a color material with a metallic color and the first image foamed is fixed, the second fusing is a fixation in which a second image is formed by using a color material with another color than the metallic color and the second image formed is fixed, and the first image and the second image are overlapped. | 04-03-2014 |
20140119780 | TONER CONTAINER, IMAGE FORMING APPARATUS INCLUDING SAME, AND CONNECTING STRUCTURE FOR CONNECTING TONER CONTAINER AND IMAGE FORMING APPARATUS - A toner container includes a cylindrical container body, a cap having a toner outlet, and a shutter. The cap includes a primary positioning primary positioning hole, formed in a top front surface perpendicular to a longitudinal direction of the toner container, extending in the longitudinal direction, to determine an installation position of the cap relative to the image forming apparatus, a secondary positioning hole, formed in a bottom front surface perpendicular to the longitudinal direction of the toner container, extending in the longitudinal direction forward the toner outlet, to subsidiary determine the installation position of the cap, and a first restriction member to position the cap in a horizontal direction perpendicular to the longitudinal direction, projecting vertically upward from an outer circumferential surface of the cap and symmetrical about a virtual perpendicular line passing through a cross-sectional center position of the primary positioning hole perpendicular to the longitudinal direction. | 05-01-2014 |
20140119798 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND COMPUTER READABLE MEDIUM - An image forming apparatus includes: a forming unit that forms an image on a medium; a fixing unit that fixes the formed image; and a control unit that performs control such that the forming unit forms a base image and the fixing unit fixes the base image, changes settings of the forming unit and the fixing unit after the fixing of base image, and performs control such that the forming unit forms an uneven pattern image so as to be superimposed on the base image and the fixing unit fixes the uneven pattern image. | 05-01-2014 |
20150069988 | DC-DC CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT - The DC-DC converter includes a mask controlling circuit that outputs an overcurrent detection mask signal that prescribes a mask period in which the overcurrent detection result signal is masked. The DC-DC converter includes a mask adjusting circuit that adjusts a length of the mask period according to the power supply voltage. The DC-DC converter includes an operation circuit that performs an operation of the overcurrent detection result signal and the overcurrent detection mask signal and outputs an overcurrent controlling signal with the overcurrent detection result signal being masked in the mask period. | 03-12-2015 |