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1. 发明专利

JP2008301692A Power supply unit and image forming apparatus 审中-公开
标题翻译：电源单元和图像形成装置
公开(公告)号：JP2008301692A
公开(公告)日：2008-12-11
申请号：JP2007148625
申请日：2007-06-04
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： H02M3/24 , G03G15/01 , G03G15/16 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that it is difficult to stably control a power supply circuit having a piezoelectric transformer at a low voltage because it is easily influenced by a spurious frequency when a wide voltage range is required. SOLUTION: The power supply unit is provided with a piezoelectric transformer 501, a drive circuit for driving the piezoelectric transformer 501, a control circuit 510 for controlling a drive frequency by the drive circuit, and a rectifying circuit for rectifying an output voltage of the piezoelectric transformer 501 and supplying the rectified voltage to a load. The reference voltage of the rectifying circuit is determined by a constant voltage element 521 connected in series to the ground level of the load. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题为了解决难以稳定地控制具有低电压的压电变压器的电源电路的问题，因为当需要宽的电压范围时容易受到寄生频率的影响。解决方案：电源单元设有压电变压器501，用于驱动压电变压器501的驱动电路，用于通过驱动电路控制驱动频率的控制电路510和用于整流输出电压的整流电路并将整流电压提供给负载。整流电路的基准电压由与负载的地电平串联连接的恒压元件521决定。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2012103591A Image-forming device 有权
标题翻译：图像形成装置
公开(公告)号：JP2012103591A
公开(公告)日：2012-05-31
申请号：JP2010253783
申请日：2010-11-12
申请人： Canon Inc , キヤノン株式会社
发明人： UCHIDA WATARU , NISHIKAWA MASAAKI , FURUYA NORIO , KATO HIRONORI , INOUE NAOKI , TANAKA SHUNSUKE
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To improve operability by controlling temperature rise at multiple temperature rise parts and minimizing height of an image-forming device.SOLUTION: An image-forming device comprises: a paper discharging part 101 and a photosensitive drum 10a where a temperature rises in accordance with image forming performance; and a CPU 40 that selects one control mode from multiple control modes which execute image formation while controlling temperature rise at the paper discharging part 101 and the photosensitive drum 10a and correspond to each of the paper discharging part 101 and the photosensitive drum 10a. The CPU 40 selects a paper discharging part temperature rise control mode or a photosensitive drum temperature rise control mode for controlling the temperature rise at the paper discharging part 101 or the photosensitive drum 10a, and executes the image formation in the selected control mode at a timing when a temperature of at least one of the paper discharging part 101 and a temperature of the photosensitive drum 10a reaches a specified temperature or higher.
摘要翻译：要解决的问题：通过控制多个温度上升部分的温度升高并使图像形成装置的高度最小化来提高可操作性。解决方案：图像形成装置包括：纸张排出部分101和感光鼓10a，其中温度根据成像性能升高; 以及CPU40，其从多个控制模式中选择一个控制模式，该控制模式执行图像形成，同时控制排纸部101和感光鼓10a的温度上升，并对应于每个纸张排出部101和感光鼓10a。 CPU40选择纸张排出部温度上升控制模式或用于控制纸张排出部101或感光鼓10a的温度上升的感光鼓温度升高控制模式，并且以所选择的控制模式的定时执行图像形成当纸排出部101中的至少一个的温度和感光鼓10a的温度达到规定温度以上时。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2010107730A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010107730A
公开(公告)日：2010-05-13
申请号：JP2008279624
申请日：2008-10-30
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： G03G21/14 , B65H7/14 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of obtaining an excellent image by performing an optimum correction, even when a recording medium detecting sensor is contaminated with toner and paper powder, thereby discriminating various kinds of recording mediums and applying proper fixation conditions, transfer conditions and conveyance conditions, on the basis of the discriminated result. SOLUTION: Two results obtained by irradiating a correction plate with light at a different timing from a light emitting means 1 and a light emitting means 2 being two different light emitting means and performing measurement are compared with each other, so that a sensor characteristic change from an initial state caused by a change with time can be discriminated in detail. The sensor characteristic change is detected in detail to perform the optimum correction according to the generation status of the characteristic change. Therefore, such a problem can be prevented that sensor detection performance is reduced while a user uses the image forming apparatus and control for changing development conditions, transfer conditions, fixation processing conditions or image processing is not properly performed. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够通过执行最佳校正来获得优异图像的图像形成装置，即使当记录介质检测传感器被调色剂和纸粉污染时，从而区分各种记录介质并施加适当的固定条件，转移条件和运输条件，根据歧视的结果。解决方案：将与来自作为两个不同的发光装置的发光装置1和发光装置2的不同时刻的光照射校正板并进行测量而获得的两个结果彼此进行比较，使得传感器可以区别由随时间变化引起的初始状态的特征变化。检测传感器特性变化，以根据特性变化的生成状态进行最佳校正。因此，可以防止在用户使用图像形成装置时降低传感器检测性能，并且不能适当地执行用于改变显影条件，转印条件，定影处理条件或图像处理的控制这样的问题。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2008103914A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008103914A
公开(公告)日：2008-05-01
申请号：JP2006283882
申请日：2006-10-18
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： H04N1/401 , B41J29/38 , G01N21/17 , G01N21/47 , G03G15/00 , G03G21/00 , H04N1/29
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of discriminating the kind of a recording medium with high accuracy even when the light quantity of light irradiation and the light receiving sensitivity of a light receiving sensor are varied. SOLUTION: A CMOS area sensor 11 reads the surface image of a recording medium and outputs the surface image as image data to a control circuit 130. Shading data being calibration data of a sensor is acquired. The control circuit 130 uses the shading data to correct the image data and generates image unevenness data. The unevenness amount of the image unevenness data is operated by using the average light quantity of all pixels of the image unevenness data, and recording medium surface nature data being an amount for characterizing a recording medium is calculated. Finally, by comparing the value of the recording medium surface nature data with threshold information, a CPU 140 discriminates the kind of the recording medium. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使当光照射的光量和光接收传感器的光接收灵敏度变化时，提供能够以高精度判别记录介质的种类的图像形成装置。解决方案：CMOS区域传感器11读取记录介质的表面图像，并将表面图像作为图像数据输出到控制电路130.获取作为传感器的校准数据的着色数据。控制电路130使用阴影数据来校正图像数据并产生图像不均匀性数据。通过使用图像不均匀数据的所有像素的平均光量来操作图像不均匀性数据的不均匀量，并且计算作为表征记录介质的量的记录介质表面性质数据。最后，通过将记录介质表面性质数据的值与阈值信息进行比较，CPU 140识别记录介质的种类。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2008301691A Image forming apparatus and power supply unit thereof 审中-公开
标题翻译：图像形成装置及其电源单元
公开(公告)号：JP2008301691A
公开(公告)日：2008-12-11
申请号：JP2007148624
申请日：2007-06-04
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： H02M3/24 , G03G15/01 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that when controlling high voltage in a wide range, the minimum variation amount of a high voltage output becomes large, and it is difficult to reproduce subtle color tone. SOLUTION: A power supply unit has a piezoelectric transformer for generating high voltage, an operational amplifier 109 and a VCO 110 for controlling the output voltage generated from the piezoelectric transformer so as to be constant in accordance with a voltage value obtained by dividing an output voltage generated from the piezoelectric transformer on the basis of a reference voltage VrefB and a first control voltage VcontA, and a reference voltage generating circuit for generating the reference voltage VrefB in response to a second control voltage VcontB. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决在宽范围内控制高电压时，高压输出的最小变化量变大的问题，难以再现微妙的色调。解决方案：电源单元具有用于产生高电压的压电变压器，运算放大器109和VCO 110，用于控制从压电变压器产生的输出电压，以便根据通过划分获得的电压值而恒定基于参考电压VrefB和第一控制电压VcontA从压电变压器产生的输出电压和用于响应于第二控制电压VcontB产生参考电压VrefB的参考电压产生电路。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2006162963A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006162963A
公开(公告)日：2006-06-22
申请号：JP2004354208
申请日：2004-12-07
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： G03G21/00 , H04N1/401
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus of high picture quality by improving precision of recording medium discrimination by measuring distribution unevenness with sufficient precision and applying correction to it, while avoiding wastes of a conveyance distance and a conveyance time for recording medium detection and giving a degree of freedom to a recording medium detection sensor installation place when the recording medium is discriminated without being influenced by light emission distribution unevenness or photodetection sensitivity distribution unevenness of a recording medium detection sensor. SOLUTION: A sensor comprising an imaging sensor comprising an area sensor or line sensor and a light emission source is used to discriminate surface property of the recording medium and the recording medium is imaged while moved to detect light quantity distribution unevenness of the light emission source without being influenced by the surface property of the recording medium, thereby correcting the distribution unevenness. With this constitution, a detection live image is photographed first and then correction data are acquired during recording medium conveyance at normal speed to increase the degree of freedom of the recording medium detection sensor installation position while avoiding wastes of the conveyance time and conveyance distance for the recording medium detection. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题：为了通过以足够的精度测量分布不均匀性并且对其进行校正，通过提高记录介质鉴别的精度来提供高画质的图像形成装置，同时避免了传送距离和传送时间的浪费在不受记录介质检测传感器的发光分布不均匀或光检测灵敏度分布不均匀性的情况下区分记录介质时，记录介质检测并给予记录介质检测传感器安装位置的自由度。解决方案：包括具有区域传感器或线传感器和发光源的成像传感器的传感器用于区分记录介质的表面特性，并且在移动时成像记录介质以检测光的光量分布不均匀性而不受记录介质的表面性质的影响，从而校正分布不均匀性。利用这种结构，首先拍摄检测实时图像，然后在正常速度的记录介质传送期间获取校正数据，以增加记录介质检测传感器安装位置的自由度，同时避免传送时间的浪费和传送距离记录介质检测。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005345927A Device for recording material discrimination, image forming apparatus and its method 审中-公开
标题翻译：用于记录材料识别的装置，图像形成装置及其方法
公开(公告)号：JP2005345927A
公开(公告)日：2005-12-15
申请号：JP2004167784
申请日：2004-06-04
申请人： Canon Inc , キヤノン株式会社
发明人： AOKI MASARU , OKADA TOMOYUKI , TANAKA SHUNSUKE
IPC分类号： G03G15/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To ensure fixing, etc. on any of various kinds of recording materials under optimum fixing conditions while improving usability, by discriminating the types of the recording materials. SOLUTION: In the case where paper types are similar, a fixed first or second value as a threshold may make it difficult to discriminate the paper types. Here, a threshold y is obtained by assigning the second value to x of threshold calculation formula (1): y=-04x+35. When the first value is greater than the calculation result y, a paper type a is discriminated. When it is not greater than the threshold y, a paper type b is discriminated. This makes it possible to obtain reliable result of identification compared to the result depending on the fixed thresholds. Specifically, where the first value>y, the paper type a is discriminated, and where the first value ≤y, the paper type b is discriminated. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过区分记录材料的类型，确保在最佳定影条件下对各种记录材料中的任何一种进行固定，同时提高可用性。
解决方案：在纸张类型相似的情况下，作为阈值的固定的第一或第二值可能使得难以区分纸张类型。这里，通过将第二值分配给阈值计算公式（1）的x来获得阈值y：y = -04x + 35。当第一个值大于计算结果y时，区分纸张类型a。当不大于阈值y时，区分纸张类型b。这使得与根据固定阈值的结果相比，可以获得可靠的识别结果。具体地说，在第一个值> y的情况下，区分纸张类型a，并且在第一个值≤y的情况下，区分纸张类型b。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005234472A Recording-material discrimination apparatus and image forming apparatus 审中-公开
标题翻译：记录材料识别装置和图像形成装置
公开(公告)号：JP2005234472A
公开(公告)日：2005-09-02
申请号：JP2004046585
申请日：2004-02-23
申请人： Canon Inc , キヤノン株式会社
发明人： OKADA TOMOYUKI , AOKI MASARU , TANAKA SHUNSUKE , KOYAMA OSAMU
IPC分类号： G03G21/00 , G03G15/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To achieve fixing, etc., under the optimum fixing conditions even on various types of recording materials while improving usability by highly accurately discriminating the type of the recording material. SOLUTION: An image reading sensor 123 includes a reflecting LED 301, an LED 303 which is disposed opposite from recording material 304 and detects transmitted light quantity, a CMOS area sensor 211, and an image forming lens 303. Light from the reflecting LED 301 as a light source is emitted to the surface of the recording material 304. The light reflected from the recording material 304 is condensed via the lens 303 and forms an image in the CMOS area sensor 211. In such a case, a diffusing plate or a diffusible light guide is used between a transmitting LED 302 and the recording material 304. This removes irregularities in the light source and improves measuring accuracy. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在各种类型的记录材料上，在最佳定影条件下实现固定等，同时通过高度准确地区分记录材料的类型来提高可用性。解决方案：图像读取传感器123包括反射LED 301，与记录材料304相对设置并检测透射光量的LED 303，CMOS区域传感器211和图像形成透镜303.来自反射的光作为光源的LED301被发射到记录材料304的表面。从记录材料304反射的光经由透镜303会聚，并在CMOS区域传感器211中形成图像。在这种情况下，扩散板或者在发射LED 302和记录材料304之间使用可扩散的光导。这消除了光源中的不规则性并且提高了测量精度。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2006292952A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006292952A
公开(公告)日：2006-10-26
申请号：JP2005112468
申请日：2005-04-08
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus shortening measurement time, achieving reduced size of the body without deteriorating recording medium discrimination accuracy, and optimizing printing conditions, according to the kind of a recording medium from the printing operation standby state, by completing the recording medium discrimination, prior to the starting of supply of paper. SOLUTION: Image data are acquired, when the recording medium is stopped under first imaging conditions. The kind is discriminated, on the basis of the characteristics of the recording medium determined therefrom. A correction data for acquiring shading data for each kind of recording medium and a second imaging condition are selected, on the basis of the kind of the recording medium discriminated; the image data are acquired, when the recording medium is stopped with a second imaging condition; recording medium surface data are generated, on the basis of the image data acquired with the first imaging condition, the image data acquired with the second imaging condition, and the correction data; and the detailed kinds of the recording media are discriminated from the characteristics. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种缩短测量时间的图像形成装置，根据从打印操作待机状态的记录介质的种类，实现体的尺寸减小而不会使记录介质辨别精度恶化，并优化打印条件通过在开始供纸之前完成记录介质辨别。解决方案：当记录介质在第一成像条件下停止时，获取图像数据。根据从其确定的记录介质的特性来区分该种类。根据所识别的记录介质的种类，选择用于获取每种记录介质的阴影数据和第二成像条件的校正数据; 当记录介质以第二成像条件停止时，获取图像数据; 基于用第一成像条件获取的图像数据，生成利用第二成像条件获取的图像数据和校正数据来生成记录介质表面数据; 记录介质的详细种类与特性相区别。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2012244779A Power supply and image formation device 审中-公开
标题翻译：电源和图像形成装置
公开(公告)号：JP2012244779A
公开(公告)日：2012-12-10
申请号：JP2011112635
申请日：2011-05-19
申请人： Canon Inc , キヤノン株式会社
发明人： TANAKA SHUNSUKE
IPC分类号： H02M3/28 , G03G21/00 , H02M3/155
摘要： PROBLEM TO BE SOLVED: To output DC voltages different from each other according to an operating state or the halting state of an electronic apparatus, by a simple circuit configuration.SOLUTION: The subject power supply is provided with: a transformer T301 having a primary winding, an auxiliary winding and a secondary winding; a main switching element Q301 for controlling a conduction of the DC voltage to the primary winding, of which the input AC voltage is smoothly rectified; a differential amplifier IC301 for outputting the voltage corresponded to a voltage difference in a comparison between a voltage Vout smoothly rectifying the voltage to be generated on the secondary winding and a reference voltage; a photo-coupler PC301 for transmitting a feedback current to the primary side, which is corresponded to the output voltage from the differential amplifier of a secondary side of the transformer; a switching element Q302 for controlling the main switching element according to the feedback voltage from the feedback current and the auxiliary winding; and a switching element Q304 for turning the main switching element to the OFF state by increasing the feedback current when a voltage Vout2 is made to be generated in the secondary winding.
摘要翻译：要解决的问题：通过简单的电路配置，根据电子设备的操作状态或停止状态来输出彼此不同的DC电压。
解决方案：本体电源设有：具有初级绕组，辅助绕组和次级绕组的变压器T301; 主开关元件Q301，用于控制直流电压到初级绕组的导通，其中输入AC电压被平滑地整流; 差分放大器IC301，用于在平滑地整流次级绕组上产生的电压的电压Vout与参考电压之间进行比较，输出对应于电压差的电压; 用于向初级侧发送反馈电流的光电耦合器PC301，其对应于来自变压器的次级侧的差分放大器的输出电压; 开关元件Q302，用于根据来自反馈电流和辅助绕组的反馈电压来控制主开关元件; 以及用于在次级绕组中产生电压Vout2时通过增加反馈电流来将主开关元件转换到截止状态的开关元件Q304。版权所有（C）2013，JPO＆INPIT

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