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1. 发明专利

JP2014119632A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014119632A
公开(公告)日：2014-06-30
申请号：JP2012275502
申请日：2012-12-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UEMATSU YUICHIRO , MUTO TETSUYA , AKATSU SHINICHI
IPC分类号： G03G15/01 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To suppress a difference in image density and hue between output images between image forming modes using different image forming units from one another.SOLUTION: A tandem image forming apparatus comprises five image forming units, and performs first image density condition determination control to detect, with a toner adhesion amount sensor 310, the toner adhesion amount of toner patches for image density adjustment, the toner patches being formed by one or two or more image forming units for first image density condition determination selected from the five image forming units, and determine the first image density conditions on the basis of the detected toner adhesion amount; and second image density condition determination control to detect, with the toner adhesion amount sensor, the toner adhesion amount of the toner patches for image density adjustment that are formed by one or two or more image forming units for second image density condition determination including the image forming units not included in the image forming units for first image density condition determination, and determine second image density conditions on the basis of the detected toner adhesion amount.
摘要翻译：要解决的问题：使用彼此不同的图像形成单元来抑制图像形成模式之间的输出图像之间的图像浓度和色相的差异。解决方案：串联图像形成装置包括五个图像形成单元，并且执行第一图像浓度条件确定通过调色剂附着量传感器310检测用于图像浓度调节的调色剂贴片的调色剂附着量，调色剂片由一个或两个以上的图像形成单元形成，用于从五个图像形成中选择的第一图像浓度条件确定并且基于检测到的调色剂附着量确定第一图像浓度条件; 以及第二图像浓度条件确定控制，用于利用调色剂粘附量传感器检测由用于包括图像的第二图像浓度条件确定的一个或两个以上图像形成单元形成的用于图像浓度调整的调色剂贴片的调色剂附着量不包括在用于第一图像浓度条件确定的图像形成单元中的形成单元，并且基于检测到的调色剂粘附量来确定第二图像浓度条件。

2. 发明专利

JP2011180315A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011180315A
公开(公告)日：2011-09-15
申请号：JP2010043731
申请日：2010-03-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU SHINICHI
IPC分类号： G03G15/00 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To prevent toner-melting due to a temperature rise in an apparatus, and achieve a highly efficient printing operation.
SOLUTION: The image forming apparatus includes an image forming means configured to form a toner image on a photoreceptor by an electrophotographic process. The image forming apparatus also includes: a thermistor 114 configured to detect the temperature in the apparatus; a temperature comparison means 120 configured to compare the detected temperature in the apparatus and the toner-melting starting temperature previously set as a threshold; and a process speed determination means 130 configured to determine the electrophotographic process speed based on the comparison result.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于装置中的温度升高引起的调色剂熔化，并且实现了高效的打印操作。解决方案：图像形成装置包括图像形成装置，其被配置为通过电子照相处理在感光体上形成调色剂图像。图像形成装置还包括：热敏电阻114，被配置为检测装置中的温度; 温度比较装置120被配置为比较装置中检测到的温度和预先设定为阈值的调色剂熔融起始温度; 以及处理速度确定装置130，被配置为基于比较结果来确定电子照相处理速度。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2008026747A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2008026747A
公开(公告)日：2008-02-07
申请号：JP2006201306
申请日：2006-07-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU SHINICHI , SUZUKI TAKASHI , NAKAGAWA TSUTOMU , TOSA SHIGERU
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16 , G03G21/00
CPC分类号： G03G15/161 , G03G15/1605 , G03G15/5041
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of reducing toner consumption on an image carrier, and also, capable of obtaining an output image with stable toner deposition on a recording medium. SOLUTION: A transfer efficiency detecting means 900 includes: an arithmetic unit 302 to convert a sensor output voltage to a deposition quantity; a transfer efficiency detecting part 902 to compare the deposition Td on the photoreceptor with the deposition Tb on an intermediate transfer member converted by the arithmetic unit 302 based on pieces of detection information by a means 208 to detect an image on a photoreceptor and a means 110 to detect an image on the intermediate transfer member, to calculate the transfer efficiency, and then, to detect or determine the abnormality in the transfer efficiency. Consequently, it is possible to determine between the deterioration in developing capacity and the deterioration in transfer efficiency, and when the transfer efficiency is below a threshold, it is determined that the correction of the transfer efficiency is unable, and then, a printing operation is stopped in the image forming apparatus. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够降低图像载体上的调色剂消耗的图像形成装置，并且还能够在记录介质上获得具有稳定的调色剂沉积的输出图像。传送效率检测装置900包括：将传感器输出电压转换为沉积量的运算单元302; 转印效率检测部分902，用于通过装置208检测感光体上的图像和装置110，将感光体上的沉积Td与由运算单元302转换的中间转印部件上的沉积Tb进行比较以检测中间转印部件上的图像，以计算转印效率，然后检测或确定转印效率的异常。因此，可以确定显影容量的劣化和转印效率的劣化，并且当转印效率低于阈值时，确定转印效率的校正不能，然后打印操作是停在图像形成装置中。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007316216A Electrophotographic image forming apparatus 审中-公开
标题翻译：电子图像形成装置
公开(公告)号：JP2007316216A
公开(公告)日：2007-12-06
申请号：JP2006143974
申请日：2006-05-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU SHINICHI , SUZUKI TAKASHI , NAKAGAWA TSUTOMU , TOSA SHIGERU
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic image forming apparatus capable of obtaining an output image in which an amount of toner attached to the surface of paper is stable by preventing, at a low cost, degradation in the ability to detect an amount of attached toner, resulting from soiling of an image detecting means due to toner scattering or the like, and deterioration of a photoreceptor and an intermediate transfer body. SOLUTION: The apparatus includes a photoreceptor image detecting means 30 arranged above the photoreceptor 25 and an intermediate transfer body image detecting means 35 arranged above the intermediate transfer body 10. The apparatus further includes image detecting/abnormal state detecting means 45 and 46 for detecting abnormal states of the image detecting means 30 and 35 based on the detection results of the detecting means 30 and 35. The apparatus further includes an image detection switching means 44 for switching between the photoreceptor image detecting means 30 and intermediate transfer body image detecting means according to the results of the image detecting/abnormal state detecting means 45 and 46. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够获得输出图像的电子照相图像形成装置，其中通过以低成本防止附着在纸表面上的调色剂的量的稳定性降低，由于调色剂飞散等引起的图像检测装置的污染而导致附着的调色剂的量以及感光体和中间转印体的劣化。解决方案：该装置包括布置在感光体25上方的感光体图像检测装置30和布置在中间转印体10上方的中间转印体图像检测装置35.该装置还包括图像检测/异常状态检测装置45和46 用于根据检测装置30和35的检测结果检测图像检测装置30和35的异常状态。该装置还包括用于在感光体图像检测装置30和中间转印体图像检测之间切换的图像检测切换装置44 意味着根据图像检测/异常状态检测装置45和46的结果。（C）2008，JPO＆INPIT

5. 发明专利

JP2014219453A 画像形成装置审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014219453A
公开(公告)日：2014-11-20
申请号：JP2013096544
申请日：2013-05-01
申请人：株式会社リコー , Ricoh Co Ltd
发明人： GOTO KEITA , HIRAI HIDEJI , AKATSU SHINICHI , MUTO TETSUYA , SUZUKI SHINGO , KANEKO SATOSHI , UEMATSU YUICHIRO
IPC分类号： G03G15/01 , G03G15/00
CPC分类号： G03G15/00 , G03G15/01
摘要：【課題】画像の濃度ムラ検出用の画像パターンを、像担持体周長より短い長さで、かつ作成回数を抑えることで、濃度ムラ情報の取得に係る時間の短縮を図る。【解決手段】回転可能な像担持体上に画像の濃度ムラを測定するための画像パターンをトナー像で形成する画像パターン作成手段40(Y、M、C、K)と、画像パターン作成手段で形成された画像パターンの濃度を検出する濃度検出手段30と、画像パターンが形成された像担持体の回転方向の位置を検出する回転位置検出手段31と、濃度検出手段で検出した濃度情報から像担持体の回転周期に起因する濃度ムラ情報を抽出する濃度ムラ抽出手段204と、濃度ムラ抽出手段で抽出した濃度ムラ情報を基に、画像パターン作成手段における画像形成条件を決定する制御手段200を備え、濃度ムラ抽出手段により抽出した濃度ムラ情報に基づいて決定した像担持体の回転方向への位置における複数の濃度情報により、画像パターン作成手段における画像形成条件を補正する。【選択図】図9
摘要翻译：要解决的问题：为了创建用于检测图像浓度的不均匀性的图像图案，其长度短于图像载体的周长，并且抑制创建次数以减少获取浓度不均匀信息所需的时间。解决方案：图像形成装置包括：用于形成用于测量作为调色剂图像的可旋转图像载体上的图像浓度不均匀的图像图案的图像图案生成装置40（Y，M，C和K）密度检测装置30，用于检测由图像图案生成装置形成的图像图案的浓度; 用于检测在其上形成有图像图案的图像载体的旋转方向上的位置的旋转位置检测装置31; 浓度不均匀提取装置204，用于从由浓度检测装置检测的浓度信息中提取由图像载体的旋转周期产生的浓度不均匀的信息; 以及控制装置200，用于根据由浓度不均匀提取装置提取的关于浓度不均匀性的信息来确定图像图案生成装置中的图像形成条件。图像形成装置根据图像载体的旋转方向上的位置上的多个密度信息，根据由图像密度提取的信息确定的多个密度信息来校正图像形成条件密度不均匀提取手段。

6. 发明专利

JP2014178632A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014178632A
公开(公告)日：2014-09-25
申请号：JP2013054063
申请日：2013-03-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MUTO TETSUYA , HIRAI HIDEJI , AKATSU SHINICHI , SUZUKI SHINGO , KANEKO SATOSHI , GOTO KEITA , UEMATSU YUICHIRO
IPC分类号： G03G15/00 , G03G21/14
CPC分类号： G03G15/5058 , G03G2215/0116 , G03G2215/0129 , G03G2215/0141 , G03G2215/0161 , G03G2215/0164
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that accurately detects phase information on unevenness in image density and corrects the image density, while preventing the occurrence of abnormal images, so as to appropriately reduce the unevenness in density.SOLUTION: A copier 100 includes: a photoreceptor drum 2; a photoreceptor home position sensor; a developing unit 5; a primary transfer roller 6 that transfers a toner image to an intermediate transfer belt 1; a toner image detection sensor 30 that detects the density of the image on the intermediate transfer belt 1; and a control unit that forms a predetermined image pattern, acquires a toner adhesion amount detection signal detected by the toner image detection sensor 30 and a rotation position detection signal, and determines image formation conditions on the basis of data on the acquired detection signals. The photoreceptor drum 2 and the intermediate transfer belt 1 have a different linear velocity from each other during image formation. When the control unit that is image formation condition determination means performs control to correct unevenness in image density, performs control to cause the photoreceptor drum 2 and the intermediate transfer belt 1 to have the same linear velocity.
摘要翻译：要解决的问题：提供一种图像形成装置，其能够在防止异常图像的发生的同时，准确地检测图像浓度不均匀的相位信息，校正图像浓度，从而适当地减小密度不均匀。解决方案：复印机100 包括：感光鼓2; 感光体原位传感器; 显影单元5; 将调色剂图像转印到中间转印带1的一次转印辊6; 检测中间转印带1上的图像的浓度的调色剂图像检测传感器30; 以及形成预定图像图案的控制单元，获取由调色剂图像检测传感器30检测的调色剂附着量检测信号和旋转位置检测信号，并且基于获取的检测信号的数据来确定图像形成条件。感光鼓2和中间转印带1在图像形成期间具有彼此不同的线速度。当作为图像形成条件确定装置的控制单元执行校正图像浓度的不均匀性的控制时，进行控制以使感光鼓2和中间转印带1具有相同的线速度。

7. 发明专利

JP2014139604A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014139604A
公开(公告)日：2014-07-31
申请号：JP2013008051
申请日：2013-01-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： GOTO KEITA , AKATSU SHINICHI , HIRAI HIDEJI , SUZUKI SHINGO , MUTO TETSUYA , KANEKO SATOSHI , UEMATSU YUICHIRO
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of reducing periodic unevenness in image density corresponding to a rotation period of a rotating body over time used in toner image formation even at the occurrence of deterioration over time of the surface of the rotating body, while achieving a reduction in waiting time for correction of a control target value of image forming conditions based on a detection result of a toner image of an image pattern for control.SOLUTION: An image forming apparatus forms, during image forming operation of an output target image, a toner image of an image pattern for control in a non-image formation area on an intermediate transfer belt 1 where a toner image of the output target image is not formed, and corrects a control target value of image forming conditions such as developing bias and exposure power on the basis of a detection result of the density of the toner image.
摘要翻译：要解决的问题：提供一种图像形成装置，即使在旋转体的表面随时间变化的情况下，也能够减少与调色剂图像形成中所使用的旋转体的旋转周期相对应的图像密度的周期性不均匀性同时基于用于控制的图像图案的调色剂图像的检测结果来实现减少用于校正图像形成条件的控制目标值的等待时间。解决方案：图像形成装置在输出的图像形成操作期间形成目标图像，用于在不形成输出目标图像的调色剂图像的中间转印带1上的非图像形成区域中进行控制的图像图案的调色剂图像，并且校正图像形成条件的控制目标值，例如基于调色剂图像的浓度的检测结果显影偏压和曝光功率。

8. 发明专利

JP2011154314A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011154314A
公开(公告)日：2011-08-11
申请号：JP2010017209
申请日：2010-01-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU SHINICHI
IPC分类号： G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming device capable of obtaining gradation patterns from low density to high density, performing accurate deposition amount conversion, and forming an image having a constant amount of deposition on a photoreceptor or an intermediate transfer body. SOLUTION: The image forming device 100 includes: image forming means 102-105 for forming a toner image on the photoreceptor 202; density patch forming means 102a-105a for forming on the photoreceptor 202 a density patch 113 for controlling an image forming condition as the toner image; an image detecting means 110 which is constituted by a light-emitting element (light-emitting means) 303 for emitting light onto the density patch 113 formed by the density patch forming means 102a-105a, a regular reflection light-receiving element (light-receiving means) 304 for receiving reflected light of the density patch 113 emitted by the light-emitting element 303, and a diffusion light-receiving element (light-receiving means) 305; and a control device 114 which controls the image forming condition based on the light-receiving amount detected by the image forming means 110. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：为了提供一种能够从低密度到高密度获得灰度图案的图像形成装置，执行精确的沉积量转换，并且在感光体或中间转印体上形成具有恒定沉积量的图像。图像形成装置100包括：用于在感光体202上形成调色剂图像的图像形成装置102-105; 用于在感光体202上形成用于控制图像形成条件的浓度贴片113作为调色剂图像的密度贴片形成装置102a-105a; 由用于将光发射到由密度贴片形成装置102a-105a形成的密度贴片113上的发光元件（发光装置）303构成的图像检测装置110，正反射光接收元件接收装置）304，用于接收由发光元件303发射的密度贴片113的反射光;漫射光接收元件（光接收装置）305; 以及控制装置114，其基于由图像形成装置110检测到的光接收量来控制图像形成条件。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010008436A Image forming apparatus and image forming method 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：JP2010008436A
公开(公告)日：2010-01-14
申请号：JP2008157094
申请日：2008-06-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MONMA SUSUMU , KOBAYASHI SHINYA , AKATSU SHINICHI , MITSUYA TERUAKI , TANIGAWARA MAKOTO , MIKI EIJI , NAKAJIMA ISAO
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/0129 , G03G2215/0161
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and method for forming an image while constantly monitoring image quality even when continuous image formation such as printing on a continuous sheet is carried out. SOLUTION: The electrophotography type image forming apparatus performing an image forming operation on the continuous sheet, transfers a toner image formed on a photoreceptor to the continuous sheet via an intermediate transfer belt in image formation. The width of a toner image forming area on the intermediate transfer belt is wider than that of an output image formation area serving as a formation area of the toner image to be transferred to the continuous sheet. The image forming apparatus has a sensor measuring physical quantities about image quality of reference images formed inside the output image formation area and outside the output image formation area of the intermediate transfer belt. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于形成图像的图像形成装置和方法，同时即使在连续的图像形成如连续片材上的打印被执行的同时始终监视图像质量。解决方案：在连续片上进行图像形成操作的电子照相式图像形成装置通过图像形成中的中间转印带将形成在感光体上的调色剂图像转印到连续片材上。中间转印带上的调色剂图像形成区域的宽度比用作转印到连续片材的调色剂图像的形成区域的输出图像形成区域的宽度宽。图像形成装置具有传感器，其测量关于形成在输出图像形成区域内部和中间转印带的输出图像形成区域外部的参考图像的图像质量的物理量。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2008216600A Image forming apparatus and toner amount detecting method 审中-公开
标题翻译：图像形成装置和调色剂检测方法
公开(公告)号：JP2008216600A
公开(公告)日：2008-09-18
申请号：JP2007053469
申请日：2007-03-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU SHINICHI , SAKAMOTO MASANOBU , TANIGAWARA MAKOTO , SUZUKI TAKASHI , NAKAGAWA TSUTOMU
IPC分类号： G03G21/14 , G03G15/08 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus equipped with a toner amount detection means for detecting information on toner amount of a density patch which is being conveyed by a transfer belt driven by rollers at a predetermined detection position, and capable of accurately detecting the density patch even when frictional force between the transfer belt and the roller is lowered to cause slip. SOLUTION: A position patch PP which is being conveyed by an intermediate transfer belt 3 is detected at the detection position P, and reaching time required from starting to form a latent image that is the origin of the position patch PP until reaching the detecting position P is measured, a difference between the actual reaching time and the scheduled reaching time set in advance is calculated to generate correction time, which is used to correct the linkage timing of the apparatus, so as to make timing that the density patch DP passes through the detecting position P coincident with timing that the toner amount detection means 7 detects the toner amount. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，配备有调色剂量检测装置，用于检测由在预定检测位置由辊驱动的转印带传送的密度片的调色剂量的信息，并且能够即使当转印带和辊之间的摩擦力降低而导致滑动时，也能准确地检测密度贴片。解决方案：在检测位置P处检测由中间转印带3输送的位置贴片PP，并从开始到达形成作为位置贴片PP的原点的潜像直到达到测量检测位置P，计算实际到达时间和预先设定的预定到达时间之间的差，以产生用于校正装置的联动定时的校正时间，以便进行定时，使得密度贴片DP 通过与调色剂量检测装置7检测到调色剂量的定时一致的检测位置P. 版权所有（C）2008，JPO＆INPIT

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