Patent application number | Description | Published |
20080266936 | Memory device using SRAM circuit - A one read/two write SRAM circuit of which memory cell size is small, and high-speed operation is possible. The SRAM circuit includes first and second flip-flop circuits which are connected in parallel to a common write word line; a first write control circuit which is connected to said first flip-flop circuit, is conducted by a write control signal supplied to said write word line, and supplies a first write signal to said first flip-flop circuit; and a second write control circuit which is connected to said second flip-flop circuit, is conducted by a write control signal supplied to said write word line, and supplies a second write signal to said second flip-flop circuit. | 10-30-2008 |
20090302422 | Capacitor-cell, integrated circuit, and designing and manufacturing methods - A capacitor-cell is in an integrated circuit that is configured by disposing a plurality of cells on a site that is on a chip and that is provided between a power line and a grounding line in a direction of the power line and grounding line. The capacitor cell is disposed in a remaining region on the site, after the plurality of cells are disposed on the site. The capacitor-cell includes a gate poly for accumulating capacitance extending up to at least one of positions of the power line and the grounding line in a planar quadrangular cell-frame that is set for disposing the plurality of cells on the site. | 12-10-2009 |
20100122133 | LATCH CIRCUIT INCLUDING DATA INPUT TERMINAL AND SCAN DATA INPUT TERMINAL, AND SEMICONDUCTOR DEVICE AND CONTROL METHOD - A latch circuit includes a first latch that stores data provided from a data input terminal when a clock is provided from a clock input terminal, and stores scan data provided from a scan data input terminal when a first scan clock is provided from a first scan clock input terminal, a logical circuit that performs a logical operation for a second scan clock provided from the second scan clock input terminal and for an operational mode signal provided from the operation mode input terminal, and generates an update clock and a second latch including an update input terminal connected to an output terminal of the first latch, and an update clock input terminal connected to an output terminal of the logical circuit, the second latch holds the data or the scan data provided from the update input terminal when the update clock is provided. | 05-13-2010 |
20110026311 | Memory device using SRAM circuit - A one read/two write SRAM circuit of which memory cell size is small, and high-speed operation is possible. The SRAM circuit includes first and second flip-flop circuits which are connected in parallel to a common write word line; a first write control circuit which is connected to said first flip-flop circuit, is conducted by a write control signal supplied to said write word line, and supplies a first write signal to said first flip-flop circuit; and a second write control circuit which is connected to said second flip-flop circuit, is conducted by a write control signal supplied to said write word line, and supplies a second write signal to said second flip-flop circuit. | 02-03-2011 |
20120249181 | LATCH CIRCUIT AND CLOCK CONTROL CIRCUIT - A latch circuit includes a latch unit and a clock propagation suppressing unit. The latch circuit holds and outputs input data of 0 or 1. The clock propagation suppressing unit compares the input data input to the latch unit with output data output from the latch unit. When it is detected that the input data matches the output data at 0, or that the input data matches the output data at 1, an externally input clock signal is prevented from propagating to the latch unit. | 10-04-2012 |
Patent application number | Description | Published |
20080253813 | IMAGE FORMING APPARATUS WITH TRANSFER MEMBER FOR TRANSFERRING TONER ON IMAGE BEARING MEMBER - Deflection recessed in a bow shape at the axial central portion in the longitudinal direction of the transfer member is avoided to prevent failure in image caused by the transfer nip being improperly forming at the central portion. The pressing force of the transfer member against an image bearing member resulting in failure in transfer is made uniform in the longitudinal direction. The transfer member forming the transfer nip are pressed toward the photosensitive drum at the central portion in the longitudinal direction or in the positions which are spaced apart toward the center from the ends to avoid the deflection of the transfer member. | 10-16-2008 |
20090202281 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure. | 08-13-2009 |
20090232530 | IMAGE FORMING APPARATUS - An apparatus includes an image bearing member for carrying an image; an intermediary transfer member for receiving the image; a primary transfer member for transfer of the image onto the intermediary transfer member in a primary transfer station; a secondary transfer member for transfer of the image onto a transfer material in a secondary transfer station; a first charging member for charging toner remaining in a region upstream of the primary transfer station and downstream of the secondary transfer station; and a second charging member for charging the toner remaining in a region upstream of the primary transfer station and downstream of the first charging member. The first charging member rubs a surface of, and the second charging member moves in contact with, the intermediary transfer member, to transfer the toner remaining on the intermediary transfer member to the image bearing member simultaneously with the primary transfer. | 09-17-2009 |
20090257779 | IMAGE FORMING APPARATUS - An image forming apparatus for forming image on a recording medium includes a photosensitive member, a motor, a belt, and a drive member to rotate the belt, the drive member including a driven coupling. The apparatus also includes a drive coupling to rotate by a driving force generated by the motor, the drive coupling being movable in an axial direction to take an engagement position at which the driving force is transmittable to the driven coupling, and a release position. The apparatus further includes a transfer member to transfer a toner image onto the recording medium or the belt, a voltage application unit to apply a voltage to the transfer member, and a control unit to cause the voltage application unit to apply the voltage to the transfer member after the drive coupling moves to the engagement position and the driving force is transmitted to the driven coupling. | 10-15-2009 |
20100278567 | Image Forming Apparatus - An image forming apparatus includes an image bearing member for bearing a toner image; a rotatable intermediary transfer member; and a transfer unit, configured and positioned to form a transfer nip between the intermediary transfer member and the image bearing member, for transferring the toner image from the image bearing member onto a surface of the intermediary transfer member. The transfer unit includes a sheet member on which the intermediary transfer member is slidable, and includes an elastic member for urging the sheet member toward the intermediary transfer member at a position of the transfer nip. The sheet member is provided with a reinforcing portion, having a linear expansion coefficient different from that of the sheet member, in an area in which the elastic member urges the sheet member. | 11-04-2010 |
20110243617 | IMAGE FORMING APPARATUS FOR TRANSFERRING TRANSFER RESIDUAL TONER ONTO IMAGE BEARING MEMBER - There is a charge member which charges secondary transfer remaining toner on an intermediate transfer member to a polarity opposite to a normal charge polarity. The transfer remaining toner charged by the charge member is moved in the direction opposite to that of normal toner by a transfer bias and moved from the intermediate transfer member onto an image bearing member. A BK station is arranged on the downstream of other stations. In a continuous BK monochromatic mode, by applying a reverse bias to transfer portions of the other stations and applying the transfer bias only to the BK station, waste toner can be collected into the BK station (simultaneously with the transfer). In a full-color mode, since each transfer bias is applied to all stations, the waste toner is collected into the station on the uppermost stream. Thus, the image bearing member for collecting the transfer remaining toner on the intermediate transfer member is made different according to the mode, thereby suppressing that the collection of the waste toner is concentrated on one image bearing member. | 10-06-2011 |
20110318035 | IMAGE FORMING APPARATUS - An image forming apparatus for forming image on a recording medium includes a photosensitive member, a motor, a belt, and a drive member to rotate the belt, the drive member including a driven coupling. The apparatus also includes a drive coupling to rotate by a driving force generated by the motor, the drive coupling being movable in an axial direction to take an engagement position at which the driving force is transmittable to the driven coupling, and a release position. The apparatus further includes a transfer member to transfer a toner image onto the recording medium or the belt, a voltage application unit to apply a voltage to the transfer member, and a control unit to cause the voltage application unit to apply the voltage to the transfer member after the drive coupling moves to the engagement position and the driving force is transmitted to the driven coupling. | 12-29-2011 |
20120039641 | IMAGE FORMING APPARATUS WITH TRANSFER MEMBER FOR TRANSFERRING TONER ON IMAGE BEARING MEMBER - Deflection recessed in a bow shape at the axial central portion in the longitudinal direction of the transfer member is avoided to prevent failure in image caused by the transfer nip being improperly forming at the central portion. The pressing force of the transfer member against an image bearing member resulting in failure in transfer is made uniform in the longitudinal direction. The transfer member forming the transfer nip are pressed toward the photosensitive drum at the central portion in the longitudinal direction or in the positions which are spaced apart toward the center from the ends to avoid the deflection of the transfer member. | 02-16-2012 |
20120087700 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure. | 04-12-2012 |
20120128392 | IMAGE FORMING APPARATUS FOR TRANSFERRING TRANSFER RESIDUAL TONER ONTO IMAGE BEARING MEMBER - A charge member charges secondary transfer remaining toner on an intermediate transfer member to a polarity opposite to a normal charge polarity. The remaining toner is moved by a transfer bias, from the intermediate transfer member onto an image bearing member. A BK station is arranged on the downstream of other stations. In a continuous BK monochromatic mode, by applying a reverse bias to transfer portions of the other stations and applying the transfer bias only to the BK station, remaining toner can be collected into the BK station (simultaneously with the transfer). In a full-color mode, remaining toner is collected into the station on the uppermost stream. Thus, the image bearing member for collecting remaining toner on the intermediate transfer member differs according to the mode, thereby suppressing the collection of remaining toner being concentrated on one image bearing member. | 05-24-2012 |
20120269557 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure. | 10-25-2012 |
20120275807 | IMAGE FORMING APPARATUS - In an image forming apparatus, to provide a lubrication effect for an abutment portion of a transfer belt and a belt cleaning blade, when a control toner image is supplied, the control toner image is supplied to the abutment portion even when it is not necessary, thereby consuming a large amount of toner. In the image forming apparatus, the control unit changes a toner amount of the control toner image reaching the abutment portion of a photosensitive member and a photosensitive member cleaning blade and the toner amount thereof reaching the abutment portion of a transfer belt and a belt cleaning blade, based on a detection result of an environment detection unit. | 11-01-2012 |
20140105643 | IMAGE FORMING APPARATUS HAVING A BRUSH MEMBER - An image forming apparatus includes an image bearing member for carrying a toner image, a movable intermediary transfer member for receiving the toner image from the image bearing member, a primary transfer member for primary transfer of the toner image from the image bearing member onto the intermediary transfer member, a secondary transfer member for being supplied with a voltage and for secondary transfer of the toner image from the intermediary transfer member onto a transfer material, and a first toner charging member. A first charging member rubs a surface of the intermediary transfer member with movement thereof, and a second charging member moves in contact with the intermediary transfer member, thereby transferring toner remaining on the intermediary transfer member after the secondary transfer back to the image bearing member from the intermediary transfer member simultaneously with the primary transfer at the primary transfer station. | 04-17-2014 |
20140161498 | IMAGE HEATING APPARATUS - The fixing apparatus includes a sleeve, a nip portion forming member that contacts an inner surface of the sleeve, a pressure member, and a regulation member for regulating movement of the sleeve, in which the regulation member includes a first surface and a second surface, in which the first surface on an upstream side of the nip portion in a conveyance direction of the recording material includes a region in which a distance between the inner surface of the sleeve and the first surface in a radial direction of the sleeve increases toward a center portion of the sleeve in the generatrix direction, and in which the end surface of the sleeve contacts the region when the sleeve moves in the generatrix direction. | 06-12-2014 |
20140219692 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure. | 08-07-2014 |
20150043935 | IMAGE FORMING APPARATUS - In an image forming apparatus, to provide a lubrication effect for an abutment portion of a transfer belt and a belt cleaning blade, when a control toner image is supplied, the control toner image is supplied to the abutment portion even when it is not necessary, thereby consuming a large amount of toner. In the image forming apparatus, the control unit changes a toner amount of the control toner image reaching the abutment portion of a photosensitive member and a photosensitive member cleaning blade and the toner amount thereof reaching the abutment portion of a transfer belt and a belt cleaning blade, based on a detection result of an environment detection unit. | 02-12-2015 |