Patent application number | Description | Published |
20110033214 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device including: a fixing member; a pressing member to form a nip portion between the pressing member and the fixing member, wherein the fixing member and the pressing member sandwich a recording medium, fix a toner image on the recording medium and convey the recording medium; a detection unit for detecting that a leading edge of the recording medium is located at the nip portion; a first air jetting unit for separating the recording medium from the fixing member by jetting air only to a position close to the leading edge of the recording medium having passed the nip portion based on the detection result by the detection unit; and a second jetting unit for jetting air to the recording medium whose leading edge has passed through the nip portion. | 02-10-2011 |
20110044735 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device including: a heated fixing member to fix a toner image on a recording medium; a pressing member to form a nip portion between the pressing member and the fixing member; a first blowing unit that blows air to a position close to a leading edge of the recording medium; and a second blowing unit that blows air to the recording medium, wherein a discharge pressure of the air discharged by the first blowing unit is larger than that of the air ejected by the second blowing unit; a discharged air volume discharged by the first blowing unit is less than that discharged by the second blowing unit; and a first discharge port from which air is blown by the first blowing unit is arranged upstream of a second discharge port from which air is blown by the second blowing unit. | 02-24-2011 |
20110091249 | FIXING DEVICE, IMAGE FORMING APPARATUS AND FIXING METHOD - A fixing device including: a heated fixing member; a pressure member to form a nip portion between the pressure member and the fixing member; first blowing unit and second blowing unit both located close to an outlet of the nip portion and separate the recording medium from the fixing member by blowing air to the recording medium, wherein a velocity of the air discharged from the first unit is higher than that of the air discharged from the second unit, whereas a volume of the air discharged from the first unit is smaller than that of the air discharged from the second unit; and the first unit starts discharging air before a leading edge of the recording medium reaches the outlet of the nip portion, whereas the second unit starts discharging air after the leading edge of the recording medium has passed through the outlet of the nip portion. | 04-21-2011 |
20110097121 | FIXING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED THEREWITH - A fixing device fixing a toner image on a recording material, includes: a first blowing section that blows air against a leading edge of the recording material that has passed through a nip portion formed by a heated fixing member and a pressing member kept in pressure contact with the fixing member, and a second blowing section that blows air against the recording material that has passed through the nip portion, wherein an air speed of air blown out from a first blowing outlet is higher than that of air blown out from a second blowing outlet, wherein an air flow amount from the first blowing outlet is less than that from the second blowing outlet, and wherein the first and second blowing outlets are arranged at the same position in a direction in parallel with a rotational axis of the fixing member. | 04-28-2011 |
20110222921 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device for fixing a toner image onto a recording sheet by applying a pressure and a heat during conveying the recording sheet at a nip portion, includes: a fixing member including a heating section; a pressure-applying member forming the nip portion with the fixing member; an air blow duct provided with an air discharge opening which opens toward a vicinity of a recording sheet outlet of the nip portion; and an air blowing section which blows air toward the vicinity, wherein fixing device further includes an air drain path provided with an air suction opening at the vicinity of the outlet of the recording sheet and suctioning the air blown toward the vicinity of the outlet of the recording sheet thereby draining the air. The air drain path is separated from a sheet conveyance path by a separation wall member and formed above the sheet conveyance path. | 09-15-2011 |
20110229220 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device including: a fixing member that heats toner image and fixes it onto a recording material; a pressure member that forms a nip that presses the recording material against the fixing member; a first air separating section that blows air against the fixing member and separates the recording sheet from the fixing member; and a separation claw that separates the recording material from the pressure member, wherein a tip of the separation claw contacts the pressure member at a position which is downstream, in a direction of movement of a surface of the pressure member, of a peak of an air blast pressure distribution on a surface of the pressure member, and wherein the air blast pressure distribution is formed by air blown against the pressure member which is caused by the air blown by the first air separating section against the fixing member. | 09-22-2011 |
Patent application number | Description | Published |
20090244349 | SOLID STATE IMAGE PICKUP DEVICE - A solid state image pickup device includes a plurality of light receiving sections formed in a regular pattern, transfer channels, a plurality of first transfer electrodes and a plurality of second transfer electrodes formed on the transfer channels, a plurality of first wires each applying a potential to the corresponding first transfer electrodes and a plurality of second wires each applying a potential to the corresponding second transfer electrodes. The first and second wires extend in the directions intersecting each other. | 10-01-2009 |
20090302408 | SOLID-STATE IMAGE SENSOR AND MANUFACTURING METHOD THEREOF - A solid-state image sensor includes: a photoelectric conversion region formed in an upper part of a semiconductor substrate, for generating charges by photoelectric conversion; a transfer region formed in the upper part of the semiconductor substrate and located on a side of the photoelectric conversion region, for transferring the charges; and a transfer electrode formed over the semiconductor substrate and located above the transfer region. The solid-state image sensor further includes: a first insulating film which covers the photoelectric conversion region and the transfer electrode; an antireflection film which covers the first insulating film; and a first light-shielding film which is formed on the antireflection film and covers at least the transfer electrode. The antireflection film and the first light-shielding film have an opening above the transfer electrode. | 12-10-2009 |
20110031575 | SOLID-STATE IMAGE SENSOR - A solid-state image sensor includes first and second pixels formed on a semiconductor substrate. The first pixel includes: a first photoelectric conversion region located in an upper portion of the semiconductor substrate; a first transfer electrode; a light-shield film covering the first transfer electrode and having a first opening on the first photoelectric conversion region; and a first anti-reflection film located on the first photoelectric conversion region and, when viewed in plan, within the first opening so as not to overlap the first light-shield film. The second pixel includes: a second photoelectric conversion region located in an upper portion of the semiconductor substrate; a second transfer electrode; the light-shield film covering the second transfer electrode and having a second opening on the second photoelectric conversion region; and a second anti-reflection film located on the second photoelectric conversion region and continuously extending to a portion on the second transfer electrode. | 02-10-2011 |
Patent application number | Description | Published |
20090173817 | Method for manufacturing an axial air-gap electronic motor - An axial air-gap electronic motor has a teeth surface of a stator and a magnet surface of a rotor arranged opposedly along an axis line direction of an output shaft of the rotor with a predetermined gap being provided therebetween. The stator has a plurality of core members connected in a ring form. In manufacturing the electronic motor, after the teeth surfaces of the core members are arranged so as to face to each other and a dummy member is arranged between predetermined core members, a coil is wound from one end side toward the other end side of the core members continuously without being cut, and a coil of a length corresponding to a transition wire set between the core members is wound on the dummy member. | 07-09-2009 |
20100176680 | Permanent magnet motor - There is provided a permanent magnet motor capable of reducing cogging torque and torque ripple while suppressing a decrease in motor output. In a permanent magnet motor | 07-15-2010 |
20100181863 | Electronic motor - There is provided an electronic motor in which a stator core is thinned to obtain an increased diameter of a rotor is to produce a high power output, and a stator can be positioned with high accuracy at the time when a coil is wound on the stator. The outside peripheral surface of a yoke part | 07-22-2010 |
20130249329 | MOLDED MOTOR - A molded motor includes an annular yoke part, a stator including a stator core having, a plurality of teeth parts extending from an inner peripheral surface of the annular yoke part toward a center thereof, an insulator covering the stator core, an outer shell formed around the stator core and the insulator and made of resin, a rotor coaxially disposed at the center of the stator, a connecting wire guide provided on the insulator to stand in an axial direction of the stator core at a position corresponding to an engagement recess of an outer peripheral part of the outer shell, and a connecting wire guided by the connecting wire guide. A crimped part of a bracket adapted to be attached to an end face of the stator is engaged with the engagement recess when a part of a side end face of the bracket is crimped and secured. | 09-26-2013 |
20150015101 | ELECTRIC MOTOR - An electric motor includes: a rotating shaft; a rotor securely attached to the rotating shaft and including a cylindrical magnet portion; a stator formed in an annular shape on an outer peripheral side of the rotor; a board installed above the rotor and the stator with a predetermined air gap therefrom; and a lead wire connected to the board. A connecting portion of the board and the lead wire is formed at a position on an inner side of an axial projection plane of the magnet portion of the rotor above the board. In this electric motor, even when the rotor is increased in diameter, the connecting portion of the lead wire connected to the board can be prevented from being located proximate to an upper part of the magnet portion of the rotor. | 01-15-2015 |
Patent application number | Description | Published |
20090003900 | FIXING DEVICE, CARRYING DEVICE AND IMAGE FORMING APPARATUS - The conveying device of the present invention comprises a cylindrical first roller, a cylindrical second roller that has a surface hardness higher than a surface hardness of the first roller, and a belt placed in a state surrounding either the first roller or the second roller. The conveying device moves an object to be conveyed by bringing the first roller and the second roller in pressure contact with each other via the belt and making the object pass through a nip portion formed of the belt and the first roller or the second roller facing the belt. A length in a lengthwise direction of an outer peripheral portion of the first roller is shorter than a length in a lengthwise direction of an outer peripheral portion of the second roller. | 01-01-2009 |
20090317155 | FIXING DEVICE AND IMAGE FORMATION APPARATUS - Disclosed is a fixing device that easily suppresses an excessive temperature increase in a guide plate without extending a warm-up period, the device comprising: guide plate | 12-24-2009 |
20090317157 | FIXING DEVICE HAVING GOOD WARM-UP PROPERTY AND IMAGE FORMATION APPARATUS - Disclosed is a fixing device having a self-temperature control function, and reducing a heat capacity of a heat generation member for saving energy and achieving good warm-up property. The fixing device includes a fixed plate inside a closed rotation path of a belt, contacting an inner circumferential surface of the belt, substantially opposed to an excitation coil with the belt therebetween, keeping the belt on the rotation path. The fixed plate includes: a magnetic shunt alloy layer made of a magnetic shunt alloy; a conductive heat generation layer being disposed toward a main surface of the magnetic shunt alloy layer facing the belt, being made of a conductor other than the alloy, and being thinner than the alloy layer; and a low resistance conductive layer being disposed toward another main surface, having a lower electric resistance value than the heat generation layer, and being thicker than the heat generation layer. | 12-24-2009 |
20090317158 | FIXING DEVICE AND IMAGE FORMATION APPARATUS - A fixing device forms a fixing nip by pressing a first roller, which is inside a rotation path of a rotating belt, with a second roller via the belt, and thermally fixes an unfixed image formed on a sheet S by passing the sheet S through the fixing nip while heating the belt by electromagnetic induction. The fixing device comprises an excitation coil positioned outside said path, and a fixed plate that (i) is inside said path, substantially facing the excitation coil via the belt, (ii) contacts an inner surface of the belt, and (iii) keeps the belt on said path. A base member of the belt is a conductive heat generation layer containing no magnetic shunt alloy. The fixed plate includes a conductive layer and a magnetic shunt alloy layer that is closer to the belt than the conductive layer. | 12-24-2009 |
20120063821 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device includes: a fixing belt which is supported by one or more rollers; and a fixing roller which is in pressed contact with at least one of the rollers across the fixing belt, wherein the fixing roller includes a core portion which is rotatably provided, an elastic portion which covers the core portion so as to form a cylindrical shape with a rotation axis of the core portion being defined as a center, and a release portion which covers a cylindrical outer peripheral surface of the elastic portion, and an end of the elastic portion in a direction along the rotation axis and an end of the release portion in the direction along the rotation axis project from an end of the core portion, in the direction along the rotation axis, at a part where the core portion and the elastic portion are in contact with each other. | 03-15-2012 |
20120148319 | FIXING DEVICE AND IMAGE FORMATION APPARATUS - A fixing device forms a fixing nip by pressing a first roller, which is inside a rotation path of a rotating belt, with a second roller via the belt, and thermally fixes an unfixed image formed on a sheet S by passing the sheet S through the fixing nip while heating the belt by electromagnetic induction. The fixing device includes an excitation coil positioned outside said path, and a fixed plate that (i) is inside the path, substantially facing the excitation coil via the belt, (ii) contacts an inner surface of the belt, and (iii) keeps the belt on the path. A base member of the belt is a conductive heat generation layer containing no magnetic shunt alloy. The fixed plate includes a conductive layer and a magnetic shunt alloy layer that is closer to the belt than the conductive layer. | 06-14-2012 |
20120189361 | FIXING DEVICE AND IMAGE FORMATION APPARATUS - Disclosed is a fixing device that easily suppresses an excessive temperature increase in a guide plate without extending a warm-up period, the device comprising: guide plate | 07-26-2012 |
Patent application number | Description | Published |
20140086608 | FIXING DEVICE AND IMAGE FORMING APPARATUS - Disclosed herein are a fixing device and an image forming apparatus including: a rotatable fixing side member; a rear side member that rotates in pressure contact with an outer peripheral surface of the fixing side member, the rear side member forming a fixing nip portion for conveying a sheet on which a toner image is formed in a sandwiching manner in conjunction with the fixing side member; and velocity difference setting means for setting a velocity difference between a surface velocity of the rear side member and a surface velocity of the fixing side member, wherein the rear side member and the fixing side member rotate with a velocity difference set by the velocity difference setting means. | 03-27-2014 |
20140348527 | FIXING DEVICE, IMAGE FORMING APPARATUS AND SURFACE RESTORATION METHOD - Disclosed herein is a fixing device including: a fixing nip width changing section configured to change a fixing nip width of a fixing nip; and a control section configured to control the fixing nip width changing section such that the fixing nip width is smaller than a fixing nip width for use in a fixation, and to rotate a fixing side member and a back side supporting member at different circumferential speeds so as to restore a surface of the fixing side member, wherein the control section controls the fixing nip width such that a circumferential speed difference between the fixing side member and the back side supporting member is equal to a predetermined circumferential speed difference. | 11-27-2014 |
20150227098 | FIXING BELT, FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing belt includes: a first base material layer; a first elastic layer provided on the first base material layer; and a first surface releasing layer provided on the first elastic layer, in which an indentation depth (ISO14577-1) on the first surface releasing layer measured at a pushing load of 300 [N/m | 08-13-2015 |