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1. 发明申请

US20120243896A1 FIXING DEVICE WHICH INCLUDES TEMPERATURE MEASURING UNIT CAPABLE OF MEASURING SURFACE TEMPERATURE OF HEAT APPLYING ROTARY BODY 审中-公开
标题翻译：固定装置，包括温度测量单元，能够测量加热旋转体的表面温度
公开(公告)号：US20120243896A1
公开(公告)日：2012-09-27
申请号：US13422540
申请日：2012-03-16
申请人： Yutaka Otsuka , Nobuyasu TAMURA , Koji TAKAHASHI
发明人： Yutaka Otsuka , Nobuyasu TAMURA , Koji TAKAHASHI
IPC分类号： G03G15/20
CPC分类号： G03G15/205
摘要： A fixing device includes a heating roller which is heated by a heater, a pressure roller which comes into contact with a fixing belt to form a nip portion, and a thermopile capable of measuring a surface temperature of the fixing belt. The fixing device moves that portion on the surface of the fixing belt which was located at the nip portion with the pressure roller at the start of a warm-up operation, to a measurement location of the thermopile. The fixing device uses the thermopile to measure the temperature of that portion on the surface of the fixing belt moved to the measurement location. The fixing device controls the warm-up operation on the basis of the temperature measured by the thermopile. This can reduce the time required for the warm-up operation.
摘要翻译：定影装置包括由加热器加热的加热辊，与定影带接触以形成夹持部的加压辊，以及能够测量定影带的表面温度的热电堆。固定装置将热启动操作开始时位于辊隙部位的定影带的表面部与压力辊一起移动到热电堆的测量位置。定影装置使用热电堆测量移动到测量位置的定影带的表面上的该部分的温度。定影装置基于由热电堆测量的温度来控制预热操作。这可以减少预热操作所需的时间。

2. 发明授权

US08032046B2 Image forming device and image forming method wherein a standby fixing temperature is higher than a low-temperature fixing temperature 有权
标题翻译：图像形成装置及图像形成方法，其中备用定影温度高于低温定影温度
公开(公告)号：US08032046B2
公开(公告)日：2011-10-04
申请号：US12358889
申请日：2009-01-23
申请人： Yutaka Otsuka
发明人： Yutaka Otsuka
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： To control a temperature of a rotating member for fixing an image during standby, an image forming device can suppress overshoot of the temperature of the rotating member occurred when a fixing state is switched to a standby state. Determining the standby temperature is higher than the fixing temperature (Step S103: YES), a CPU 61 controls a temperature of a heating roller 51 to be kept substantially at a first temperature (Step S104). After a lapse of first given time (Step S105: YES), the CPU 61 stops rotation of the heating roller 51, a fixing roller 52 and the pressure roller 54 (Step S107). The CPU 61 controls the temperature to be kept substantially at the second temperature (Step S108). After a lapse of second given time (Step S109: YES), the CPU 61 controls the temperature to be kept substantially at the standby temperature, and switches to the standby state.
摘要翻译：为了控制待机期间用于固定图像的旋转构件的温度，当定影状态切换到待机状态时，图像形成装置可以抑制发生的旋转构件的温度的过冲。确定待机温度高于定影温度（步骤S103：是），CPU61控制加热辊51的温度基本保持在第一温度（步骤S104）。在第一给定时间过去之后（步骤S105：是），CPU 61停止加热辊51，定影辊52和加压辊54的旋转（步骤S107）。 CPU61控制温度基本保持在第二温度（步骤S108）。在经过第二给定时间之后（步骤S109：是），CPU61控制温度基本保持在待机温度，并切换到待机状态。

3. 发明授权

US07992868B2 Image forming apparatus capable of detecting edge portion of sheet being fed 有权
标题翻译：能够检测进纸的边缘部分的图像形成装置
公开(公告)号：US07992868B2
公开(公告)日：2011-08-09
申请号：US12633462
申请日：2009-12-08
申请人： Yuta Tachibana , Yoshiyuki Toso , Yutaka Otsuka , Shoichi Tsuge
发明人： Yuta Tachibana , Yoshiyuki Toso , Yutaka Otsuka , Shoichi Tsuge
IPC分类号： B65H7/02
CPC分类号： B65H7/14 , B65H2511/216 , B65H2511/242 , B65H2511/514 , B65H2553/416 , B65H2553/82 , B65H2557/23 , B65H2557/242 , B65H2701/131 , B65H2701/1311 , B65H2701/1313 , B65H2220/03 , B65H2220/01
摘要： A sheet detection unit of an image forming apparatus includes a light receiving unit including a plurality of light receiving elements arranged in a sheet feeding direction. A computation processing unit shifts signals from the elements in synchronization with a sheet feeding speed and makes additions, increases a signal change level, and stores the signals in buffers in a result storage unit. A sheet position determination unit detects a position of an edge portion of a sheet being fed based on distribution of data stored in the buffers.
摘要翻译：图像形成装置的片材检测单元包括：光接收单元，包括以片材馈送方向布置的多个光接收元件。计算处理单元与片材进给速度同步地移动来自元件的信号，并添加，增加信号变化水平，并将信号存储在缓冲器中的结果存储单元中。纸张位置确定单元根据存储在缓冲器中的数据的分布来检测正在进给的纸张的边缘部分的位置。

4. 发明授权

US07901133B2 Temperature detecting device, fixing device, and image forming apparatus 有权
标题翻译：温度检测装置，定影装置和成像装置
公开(公告)号：US07901133B2
公开(公告)日：2011-03-08
申请号：US11808528
申请日：2007-06-11
申请人： Yutaka Otsuka
发明人： Yutaka Otsuka
IPC分类号： G03G15/00 , G01K1/02 , G01J5/00
CPC分类号： G01J5/20 , G01J5/06 , G03G15/2039 , G03G2215/00772
摘要： A pressure thermistor has a retention part, a film retained on the lower surface of the retention part in such a way that both surfaces of the film are exposed, and a thermosensitive device attached to the film. One surface of the film is rough and faces a pressure roller. The one surface of the film is increased in surface area due to rough surface. Thus, reflection of heat from the pressure roller is suppressed on the one surface of the film. Also, it becomes possible to improve the absorptivity of heat on the one surface of the film.
摘要翻译：压力热敏电阻具有保持部分，以保持膜的两个表面露出的方式保持在保持部分的下表面上的膜和附着在膜上的热敏装置。膜的一个表面是粗糙的并且面向压力辊。由于粗糙的表面，膜的一个表面的表面积增加。因此，在膜的一个表面上抑制来自加压辊的热的反射。此外，可以提高膜的一个表面上的热吸收率。

5. 发明申请

US20100309950A1 TEMPERATURE DETECTOR, IMAGE FORMING DEVICE HAVING TEMPERATURE DETECTOR, AND CONTAMINATION DETECTION METHOD FOR TEMPERATURE DETECTOR 有权
标题翻译：温度检测器，具有温度检测器的图像形成装置和温度检测器的污染检测方法
公开(公告)号：US20100309950A1
公开(公告)日：2010-12-09
申请号：US12795398
申请日：2010-06-07
申请人： Yutaka OTSUKA
发明人： Yutaka OTSUKA
IPC分类号： G01N25/00 , G03G15/20
CPC分类号： G01J5/08 , G01J5/02 , G01J5/025 , G01J5/026 , G01J5/04 , G01J5/047 , G01J5/0862 , G03G15/2039
摘要： A temperature detector has: an infrared sensor located so as not to be in contact with a measured object; an infrared transmission filter which is located between the infrared sensor and the measured object so as to block the infrared sensor from the measured object, and through which infrared rays emitted from the measured object pass; and a distance changer for changing a distance between the measured object and the infrared transmission filter, wherein the infrared sensor is provided so as to detect the infrared rays, which have passed through the infrared transmission filter, to detect a temperature of the measured object even when the distance is changed by the distance changer.
摘要翻译：温度检测器具有：红外传感器，其被定位成不与测量对象接触; 位于红外线传感器和测量对象之间的红外线透射滤光器，以便从被测量物体阻挡红外线传感器，从被测量物体射出的红外线通过; 以及用于改变测量对象和红外线透射滤光器之间的距离的距离变换器，其中红外传感器被设置为检测已经通过红外透射滤光器的红外线，以检测被测物体的温度，甚至当距离变化时距离变化。

6. 发明申请

US20080069581A1 Fixing Device, Fixing Device Temperature Control Method and Image Forming Apparatus 有权
标题翻译：固定装置，固定装置温度控制方法和成像装置
公开(公告)号：US20080069581A1
公开(公告)日：2008-03-20
申请号：US11776588
申请日：2007-07-12
申请人： Yutaka Otsuka
发明人： Yutaka Otsuka
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2009
摘要： A fixing device has a heating roller and a pressurizing belt which convey the a recording material in mutual contact while fixing a toner on the recording material, a heater which heats the heating roller, a noncontact first thermister which detects a surface temperature of the heating roller in a position located apart from a surface of the heating roller, a pressurizing unit which is placed inside the pressurizing belt, a second thermister which detects a temperature of the pressurizing unit; and a control section which adjusts the surface temperature of the heating roller by controlling the heater on the basis of a detection temperature of the first thermister and a detection temperature of the second thermister. Thus, fixing device is capable of suppressing a temperature difference generated in noncontact temperature detecting sections and obtaining a stable fixed image performance.
摘要翻译：定影装置具有加热辊和加压带，其在将调色剂固定在记录材料上时相互接触地传送记录材料，加热器加热加热辊;非接触式第一热敏电阻，其检测加热辊的表面温度在与所述加热辊的表面分离的位置，设置在所述加压带内的加压单元，检测所述加压单元的温度的第二热敏电阻; 以及控制部，其通过基于第一热敏电阻的检测温度和第二热敏电阻的检测温度来控制加热器来调节加热辊的表面温度。因此，定影装置能够抑制在非接触式温度检测部中产生的温度差并获得稳定的固定图像性能。

7. 发明授权

US07369787B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07369787B2
公开(公告)日：2008-05-06
申请号：US10977012
申请日：2004-11-01
申请人： Yutaka Otsuka
发明人： Yutaka Otsuka
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/2039 , G03G2215/2009 , G03G2215/2016 , G03G2215/2038
摘要： An image forming apparatus has a heating rotator 12 that is heated by a first heat source 18, a pressurizing rotator 24 that is heated by a second heat source 28, that is in pressure contact with the heating rotator 12, and that forms a fixing nip 26 between the pressurizing rotator 24 and the heating rotator 12, a temperature sensor St that detects a temperature in the apparatus, and a controller 124 that controls temperatures of the heating rotator 12 and of the pressurizing rotator 24 by on-off control over the first heat source 18 and the second heat source 28, respectively, and that sets the temperature of the pressurizing rotator 24 higher than a normal temperature on condition that the temperature detected by the temperature sensor St exceeds a specified value.
摘要翻译：图像形成装置具有由第一热源18加热的加热旋转体12，与加热旋转体12压力接触的第二热源28加热的加压旋转体24，形成定影夹持部 26，加压旋转体24和加热旋转体12之间的温度传感器St，检测装置内的温度的温度传感器St，以及控制器124，其控制加热旋转体12和加压旋转体24的温度，热源18和第二热源28，并且在由温度传感器St检测到的温度超过规定值的条件下，将加压旋转体24的温度设定为高于常温。

8. 发明授权

US07283757B2 Fixing device for use in an image forming apparatus 有权
标题翻译：用于图像形成装置的固定装置
公开(公告)号：US07283757B2
公开(公告)日：2007-10-16
申请号：US11017660
申请日：2004-12-22
申请人： Yoshihisa Fujimoto , Masami Miyazaki , Yutaka Otsuka , Koji Takahashi , Naoki Yamamoto
发明人： Yoshihisa Fujimoto , Masami Miyazaki , Yutaka Otsuka , Koji Takahashi , Naoki Yamamoto
IPC分类号： G03G15/20 , H05B6/14
CPC分类号： G03G15/2053 , G03G15/2039
摘要： A fixing device has a fixing belt, a trembler coil for heating the fixing belt with magnetic flux, a ferrite core around which the trembler coil is wound, and a heater for heating the ferrite core. The ferrite core has a Curie temperature which is between a fixing temperature of the fixing belt and a smoking start temperature of the fixing belt. The heating of the ferrite core with the heater allows the temperature of the ferrite core to reach the Curie temperature before the temperature of the fixing belt reaches a smoking start temperature. Thereby, an excessive rise in temperature of the fixing belt is suppressed, which prevents the fixing belt from smoking and igniting.
摘要翻译：定影装置具有定影带，用于加热具有磁通量的定影带的颤音线圈，缠绕有颤音线圈的铁氧体磁芯和用于加热铁氧体磁心的加热器。铁氧体磁芯具有在定影带的定影温度和定影带的吸烟开始温度之间的居里温度。利用加热器对铁氧体磁芯的加热允许铁氧体磁芯的温度在定影带的温度达到吸烟开始温度之前达到居里温度。因此，定影带的温度过度上升被抑制，防止定影带吸烟和点燃。

9. 发明申请

US20100329720A1 FIXING DEVICE AND IMAGE FORMING APPARATUS HAVING IMPROVED ACCURACY OF TEMPERATURE CONTROL 有权
标题翻译：具有改进的温度控制精度的固定装置和图像形成装置
公开(公告)号：US20100329720A1
公开(公告)日：2010-12-30
申请号：US12797069
申请日：2010-06-09
申请人： Yutaka OTSUKA
发明人： Yutaka OTSUKA
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： In a fixing device, having a sheet portion and an inter-sheet portion, heats and fixes the toner image onto each of sheets by rotationally bringing the sheet portion into contact with each sheet. A heating unit heats the fixing unit. A sensing unit senses a temperature of the fixing unit. A control unit controls a duty ratio of on/off of the heating unit based on a sensing output of the sensing unit, determines whether the sensing unit is sensing the temperature of the sheet portion or the temperature of the inter-sheet portion in a rotation cycle, and controls the temperature of the heating unit by using the adjustment value corresponding to the sheet portion or the inter-sheet portion depending on a determination result.
摘要翻译：在具有片状部分和片间部分的定影装置中，通过旋转地使片材部分与每张片材接触来加热并将调色剂图像固定在每张片材上。加热单元加热定影单元。感测单元感测定影单元的温度。控制单元基于感测单元的感测输出来控制加热单元的开/关的占空比，确定感测单元是否感测薄片部分的温度或片间部分的旋转温度循环，并且根据确定结果使用与片材部分或片间部分相对应的调节值来控制加热单元的温度。

10. 发明授权

US07386244B2 Fixing device with temperature detector and image forming apparatus 失效
标题翻译：具有温度检测器和成像装置的固定装置
公开(公告)号：US07386244B2
公开(公告)日：2008-06-10
申请号：US11417019
申请日：2006-05-04
申请人： Yutaka Otsuka
发明人： Yutaka Otsuka
IPC分类号： G03G15/20
CPC分类号： G03G15/205 , G03G2215/2016 , G03G2215/2038
摘要： A fixing device includes a pressure thermister for detecting temperature of a pressure roller. The fixing device also includes a thermal coating member on the opposite side of the pressure roller with respect to the pressure thermister. The thermal coating member has a thermal conductivity of 10W/m·K or more. The heat from the pressure roller is easily transferred to the thermal coating member because of the high thermal conductivity, so that the thermal coating member becomes warm quickly. This increases a temperature rise rate in the pressure thermister and therefore reduces time taken for warm-up of the fixing device.
摘要翻译：定影装置包括用于检测加压辊的温度的压力热敏电阻。定影装置还包括在压力辊相对于压力热敏电阻的相对侧上的热涂层构件。热涂层部件的导热率为10W / m·K以上。来自加压辊的热量由于导热性高而易于转移到热涂层部件，使得热敏涂层部件变得温暖。这增加了压力热敏电阻器中的升温速率，因此减少了预热定影装置所需的时间。

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