Class / Patent application number | Description | Number of patent applications / Date published |
399162000 | Belt | 24 |
20080247779 | Belt support roller design - This is a specifically configured roller used in a belt transport system that minimizes ripples or wrinkles in the belt. Based upon a roller having a cylindrical configuration and a one inch diameter, the roller has a concave shape having a 0.005 to 0.1 inch smaller diameter in the center compared to the end portion diameters. | 10-09-2008 |
20080247780 | ENDLESS BELT, ENDLESS BELT SUSPENDING APPARATUS, AND IMAGE FORMING APPARATUS USING THE SAME - The invention provides an endless belt for an image forming apparatus, the endless belt having at least: a belt body; a convex member; and a bonding portion for bonding the belt body and the convex member, the bonding portion having a glass transition temperature (Tg) of about −10° C. or less. The glass transition temperature (Tg) is preferably about −60° C. or less. The invention further provides a belt suspending apparatus for an image forming apparatus, the belt suspending apparatus having at least: the endless belt; and a plurality of suspending members for suspending the endless belt rotatably in a tensioned state from the inner surface side of the endless belt. The invention further provides an image forming apparatus having at least the endless belt. | 10-09-2008 |
20080247781 | BELT DRIVE CONTROLLING DEVICE, BELT DEVICE USING THE BELT DRIVE CONTROLLING DEVICE, AND IMAGE FORMING APPARATUS USING THE BELT DEVICE - A belt drive controlling device for controlling drive of an endless belt supported and driven by plural support rollers including a driving roller configured to drive the endless belt to rotate; and a driven roller which is rotated by the endless belt. The device performs arithmetic processing to extract one of two pieces of rotation variation information on two rollers of the support rollers, and perform controlling drive of the belt on the basis of the rotation variation information. A belt device including a belt, plural support rollers, a driving source, the belt drive controlling device, and a detector configured to detect rotation angular displacement or rotation angular velocity of two of the support rollers. An image forming apparatus including an image bearing member, a developing device and a transfer device, wherein the image bearing member and/or the transfer device includes the belt device. | 10-09-2008 |
20090016772 | BELT DEVICE AND IMAGE FORMING APPARATUS - A belt is supported by a plurality of rollers and is driven to move in a predetermined direction. A flange member is configured to make contact with a portion of an edge surface of the belt in its width direction. A pressing member presses on a surface of the belt in its thickness direction at a position near a contact portion of the belt with the flange member. | 01-15-2009 |
20090148183 | METHOD AND APPARATUS FOR SHIFTING IMAGE FORMING APPARATUS PHOTORECEPTOR TO REDUCE GHOST FORMATION - A method and apparatus for shifting a photoreceptor in a cross-process direction to reduce the formation of a paper edge ghost on the photoreceptor. The shifting can occur continuously or in steps. | 06-11-2009 |
20090274486 | Drive roller for imagae forming device - A drive roller is adapted for use with an image forming device that includes a conveyer belt trained on the drive roller. The drive roller includes an elongated roller body and symmetrical first and second threads. The roller body has a first segment that has an annular first surrounding surface, and a second segment that is opposite to the first segment, that has a length equal to that of the first segment, and that has an annular second surrounding surface. The first and second threads are formed respectively at the first and second surrounding surfaces, are threaded in opposite directions, and are adapted for contacting the conveyer belt. | 11-05-2009 |
20100290809 | ELECTROCONDUCTIVE ENDLESS BELT - Provided is an electroconductive endless belt in which a decrease with use in the gloss value caused by frictions and the like with papers and cleaning blade is suppressed. | 11-18-2010 |
20110033205 | ELECTROCONDUCTIVE ENDLESS BELT - The present invention provides an electroconductive endless belt that has a good melt stability during the molding of the belt as well as an excellent durability and surface properties. | 02-10-2011 |
20120183330 | ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic belt includes a thermoplastic resin composition obtained by melt-kneading a thermoplastic polyester resin, at least one selected from polyether ester amide and polyether amide, and particles having a certain core-shell structure. | 07-19-2012 |
20120237260 | IMAGE FORMING APPARATUS AND BELT TENSIONING UNIT - An image forming apparatus includes: a belt unit that includes a belt-shaped image carrier stretched around and driven to rotate by a plurality of rollers; a belt tensioning unit that includes a tensioning member that is brought into contact with an image carrying surface of the belt-shaped image carrier and applies tension to the belt-shaped image carrier; and a cleaning unit that includes a cleaning member that is brought into contact with the image carrying surface of the belt-shaped image carrier and cleans the image carrying surface. The cleaning unit is supported by the belt tensioning unit in an attachable and detachable manner. | 09-20-2012 |
20140105644 | Image Forming Device Having Belt and Holder Holding Process Units - An image-forming device includes: a main body; a plurality of process units; a belt; a holder; and a plurality of urging members. Each process unit has a photosensitive drum. The belt is configured to contact the photosensitive drums of the process units. The holder is configured to move between a position inside the main body and a position outside the main body and to hold the process units such that the process units are arranged in a row along a first direction. The plurality of urging members are configured to urge the process units to cause the photosensitive drums to contact the belt when the holder is at the position inside the main body. | 04-17-2014 |
20150071681 | Image Forming Apparatus Having Photosensitive Drum Moving Mechanism - A holder is movable in a horizontal direction between an internal position within the main casing and an external position outside of a main casing. The holder has a first opening extending in the horizontal direction. A drum unit is configured to be held by the holder and is movable in a vertical direction with respect to the holder. The drum unit includes a photosensitive drum having an axis extending in an axial direction, a first end portion and a second end portion opposite to the first end portion in the axial direction. A particular pressure member is positioned in confrontation with the drum unit and urges the first end portion upward through the first opening to permit the photosensitive drum to be in contact with an endless belt when the holder is in the internal position. | 03-12-2015 |
399165000 | Alignment or tensioning | 12 |
20090060576 | BELT DEVICE AND IMAGE FORMING APPARATUS - An endless belt member is suspended in a tensioned manner by a plurality of roller members including a drive roller and a drive motor drives the drive roller member so as to move the belt member in a predetermined direction of travel. A detecting unit detects an amount of displacement of the belt member in a widthwise direction of the belt member, and a correction unit that corrects displacement of the belt member in the widthwise direction. The correction unit corrects the displacement of the belt member in a widthwise direction based on data sampled by the detecting unit every time a drive signal is input to the drive motor a prescribed number of times. | 03-05-2009 |
20090074461 | IMAGE FORMING APPARATUS, BELT UNIT, AND BELT DRIVING CONTROL METHOD - An image forming apparatus for forming an image on a recording medium includes a belt configured to travel rotationally and looped around at least two rotary support members, a driven rotary member disposed facing at least one of the rotary support members via the belt and configured to rotate with the belt, and a controller. The controller is configured to minimize fluctuation in one of a travel velocity and a travel distance of the belt by controlling the travel of the belt based on one of a rotational angular displacement and a rotational angular velocity of each of the rotary support member and the driven rotary member. | 03-19-2009 |
20090162098 | IMAGE FORMING APPARATUS - A steering mechanism moves an intermediary transfer belt in its width direction by moving an inclination angle of two steering rollers with respect to a rotational direction of the intermediary transfer belt. The two steering rollers changes the inclination angle while maintaining a rectangle defined by the steering rollers and bearing arms to ensure a thrust movement distance in a period from start of winding of one of the steering rollers and end of winding of the other steering roller. | 06-25-2009 |
20090202275 | BELT ROTATING APPARATUS AND RECORDING APPARATUS - A belt rotating apparatus according to an exemplary embodiment of the invention includes a circular belt; plural rollers about which the belt is entrained, the plural rollers including a drive roller which rotates the belt and an inclination change roller which can change an inclination thereof; a belt side edge sensor which measures a position of a belt side edge in a belt width direction of the belt; and a cutter which can trim the belt side edge. | 08-13-2009 |
20090297221 | TRANSFER BELT MODULE STEERING TO OPTIMIZE CONTACT FORCES AT TRANSFER BELT AND PHOTORECEPTOR BELT INTERFACE - According to aspects of the embodiments, there is provided methods of optimizing contact forces between transfer and photoreceptor belts in image forming devices. The method acquires initial and operational set point data for the photoreceptor and transfer belt at different stages of engagement. Yaw motion is applied to reduce any misalignment between the belts based on the acquired data. A processor is used to determine misalignment between the photoreceptor belt and the transfer belt, and an actuator can be used to apply yaw motion. The yaw motion can return the transfer belt and the photoreceptor belt to their initial set position, or return a steering subsystem actuator to its setting prior to engagement of the belts. Set point data can be from the respective transfer steering subsystem for the photoreceptor and the transfer belts. | 12-03-2009 |
20100046986 | BELT HAVING A MEANDERING PREVENTION GUIDE AND IMAGE FORMING APPARATUS HAVING THE SAME - A belt configured to travel a continuous track may be incorporated for use in an image forming apparatus. The belt may include a guide member formed on a surface of the belt to prevent a belt from meandering off of the track, where the guide member may include a rubber sheet and a carbon black material having a primer particle diameter ranging from about 15 nm to about 35 nm. An image forming apparatus incorporating the belt with one or more guide members has an increased resistance to abrasion and mitigates belt meandering and image contamination. | 02-25-2010 |
20100067951 | Belt Unit and Image Forming Device - A belt unit includes an endless belt, a drive roller, a follow roller, and a braking member. The drive roller drives the endless belt to move circularly. The follow roller rotates about a rotational shaft thereof following the circular movement of the endless belt. The rotational shaft extends in an axial direction and having two axial ends. The endless belt is wound around the drive roller and the follow roller. The braking member is disposed on one of the two axial ends and is rotatable about the rotational shaft and applies a rotational friction force to the endless belt when the endless belt is in frictional contact with the braking member. | 03-18-2010 |
20100158568 | BELT MEMBER FEEDING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - An image forming apparatus includes a rotatable belt member; stretching means for stretching the belt member; steering means for stretching and steering the belt member, wherein the steering means includes a rotatable portion rotatable with rotation of the belt member, a frictional portion, provided at each of opposite axial end of the rotation portion, for slidable contact with the belt member, supporting means for supporting the rotatable portion and the frictional portion, a rotation shaft rotatably supporting the supporting means, and the steering means is capable of steering the belt member by rotation thereof by forces resulting from sliding between the belt member and the frictional portion, wherein each of the frictional portions is provided with an inclined surface which is inclined to be further from a rotational axis of the rotation portion axially toward an outside, and wherein the belt member is contacted to at least one of the inclined portions. | 06-24-2010 |
20100221042 | ENDLESS BELT WITH MEANDERING PREVENTIVE GUIDE - The present invention provides an endless belt with a meandering preventive guide, which includes an endless belt made of resin, a pressure-sensitive adhesive layer, a meandering preventive guide member attached to the endless belt through the pressure-sensitive adhesive layer, and a primer layer provided on both surfaces of the pressure-sensitive adhesive layer. | 09-02-2010 |
20110002710 | IMAGE FORMING APPARATUS HAVING TENSION-PROVIDING MECHANISM FOR BELT - To enable not only releasing pressurization by a pressurization mechanism for pressurizing a belt thereby preventing a deformation therein but also easily and securely releasing the pressurization mechanism held in the pressure release state, thereby facilitating the installation operation of an apparatus. A pressurization mechanism for pressurizing a belt is in a released state prior to the use of the main body of the apparatus. Prior to the initial use of the main body, the pressurization of the pressurizing mechanism for the belt is exerted in linkage with a user operation of placing a recording material in a feed tray. | 01-06-2011 |
20120269549 | IMAGE SIDE TENSIONER FOR XEROGRAPHIC BELT - A belt tensioning device for minimizing tension variations in a moveable endless belt configured to be mounted for rotation about rollers mounted to a frame of an image printing device. The belt tensioning device includes a tension roll forced into contact with the image retaining side of the endless belt by a tension exerting mechanism. With the tension roll engaging the image side of the endless belt, a pair of mounted rollers combine with the tension roll to form an open loop for sharply turning the endless web from a first direction to a direction generally perpendicular to the first direction and back again to the first direction thereby tensioning the moveable endless belt and minimizing unused imaging space on the belt. | 10-25-2012 |
20130164034 | PASSIVE BELT STEERING APPARATUS AND SYSTEMS - A passive belt steering apparatus includes a steering linkage at two ends of a steering roll. The steering linkage includes a fixed support and a steering link movably connected to the fixed support and a steering roll at to pivot points. The two pivot points are offset from one another to accommodate passive hard axis roll alignment in response to an axial force to the steering roll applied by a misaligned or incorrectly positioned belt. | 06-27-2013 |