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1. 发明专利

JP2015025891A 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：JP2015025891A
公开(公告)日：2015-02-05
申请号：JP2013154369
申请日：2013-07-25
申请人：株式会社リコー , Ricoh Co Ltd
发明人： KANAYA HIDEAKI , TAKAGI YASUNOBU , OZAKI NAOYUKI , KIDERA RYOTA , SEKIGUCHI SHO , YAMADA TATSUMI
IPC分类号： G03G15/00 , G03G15/16
摘要：【課題】中間転写体を使用する画像形成装置において、地汚れの発生を正確に推測して、帯電電位と現像電位の差である地肌ポテンシャル値の設定を変更できるものとする。【解決手段】感光体1Y、1M、1C、1Kに形成したトナー像を中間転写ベルト15へ転写し、中間転写ベルト15に形成したトナー像を記録媒体に転写する画像形成装置において、感光体1Y、1M、1C、1Kの地肌ポテンシャル値を変更する地肌ポテンシャル値変更手段102と、中間転写体の駆動トルク値を検出する負荷電流測定手段105と、地肌ポテンシャル値変更手段102を制御して、地肌ポテンシャル値を変更しつつ駆動トルク値を取得し、地肌ポテンシャル値と取得した駆動トルク値と基づいて地肌汚れが発生しない最適な地肌ポテンシャル値を決定する地肌ポテンシャル値決定手段101と、を備える。【選択図】図3
摘要翻译：要解决的问题：提供一种使用中间转印体的图像形成装置，其被配置为适当地估计浮渣并改变作为充电电位和显影电位之间的差的设定的背景电位值。解决方案：一种图像形成装置，将在感光体1Y，1M，1C，1K上形成的调色剂图像转印到中间转印带15，并将形成在中间转印带15上的调色剂图像转印到记录介质上，包括：背景电位值改变装置102，其改变背景电位值感光体1Y，1M，1C，1K; 负载电流测量装置105，其检测中间转印体的驱动转矩值; 并且控制背景电位值改变装置102的背景电位值确定装置101在改变背景电位值的同时获取驱动转矩值，并且基于背景电位确定最佳背景电位值以便不产生浮渣值和所获得的驱动转矩值。

2. 发明专利

JP2014224968A 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：JP2014224968A
公开(公告)日：2014-12-04
申请号：JP2013247771
申请日：2013-11-29
申请人：株式会社リコー , Ricoh Co Ltd
发明人： YAMADA TATSUMI , TAKAGI YASUNOBU , OZAKI NAOYUKI , KANAYA HIDEAKI , KIDERA RYOTA , SEKIGUCHI SHO , ATARI HIROKI
IPC分类号： G03G21/00 , G03G15/00 , G03G15/01
摘要：【課題】地汚れ量検出用画像を潜像担持体から転写される無端移動体の表面上で、潜像担持体上の地汚れ量を従来よりも正確に検出することができる画像形成装置を提供する。【解決手段】感光体1と、帯電装置2と、感光体1に潜像を書き込む露光装置と、感光体1上の潜像を現像する現像装置4と、中間転写ベルト15に感光体1上のトナー像を転写する転写ユニット30と、中間転写ベルト15上のトナーの付着量を検出する反射型光センサ150と、を備え、感光体1上の地汚れの程度を検出する地汚れ量検出モードとして、感光体1の表面に形成した白紙画像を中間転写ベルト15に転写し、反射型光センサ150でトナーの付着量を検出する制御を行うプリンタ100において、地汚れ量検出モードでは、感光体1から中間転写ベルト15への転写条件を通常の画像形成時よりも転写率が高まるように設定する。【選択図】図1
摘要翻译：要解决的问题：提供一种图像形成装置，被配置为更准确地检测潜像载体上的浮渣量，在从潜像载体传送浮渣检测图像的环形移动体的表面上。解决方案：打印机100包括：感光体1; 充电装置2; 将潜像写入感光体1上的曝光装置; 用于使感光体1上的潜像显影的显影装置4; 转印单元30，其将感光体1上的调色剂图像转印到中间转印带15上; 以及反射型光学传感器150，其检测粘附在中间转印带15上的调色剂的量。在用于检测感光体1上的浮渣程度的浮渣检测模式中，将形成在感光体1的表面上的空白图像转印到中间转印带15，以通过反射型光学传感器150检测粘附到其上的调色剂的量。设置从感光体1到中间转印带15的转印条件，使得浮渣检测模式中的转印速率更高比通常的图像形成操作。

3. 发明专利

JP2012198269A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2012198269A
公开(公告)日：2012-10-18
申请号：JP2011060501
申请日：2011-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HASHIMOTO SHUNICHI , TAKAHASHI TOMOKO , YOSHIDA TAKASHI , KOINUMA NORIYUKI , ISHIBASHI MIKIO , UNO MUGIJIRO , YOSHINAMI HIDEKI , NAKAGAWA YOSHINORI , OZAKI NAOYUKI , KANAYA HIDEAKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming device that is configured to allow fixing liquid containing a plasticizer to exhibit its function at a use environmental temperature or higher, to prevent contamination of resin in the image forming device except toner, and to prevent excessive supply of the fixing liquid and the plasticizer by maintaining the concentration of the fixing liquid substantially constant.SOLUTION: An electrostatic latent image is written by an optical write unit 3 on the surfaces of photoreceptor drums 2Y, 2C, 2M, 2K to form toner images on the surfaces of the photoreceptor drums 2Y, 2C, 2M, 2K using developing devices 12Y, 12C, 12M, 12K. The toner images on the photoreceptor drums 2Y, 2C, 2M, 2K are transferred onto a transfer conveyance belt 4, sequentially. A fixing liquid applying unit 18 applies fixing liquid onto a recording medium 9 conveyed from a registration roller 16. A secondary transfer unit 7 transfers the toner images on the transfer conveyance belt 4 onto the recording medium 9. The concentration of the fixing liquid in the fixing liquid applying unit 18 is controlled.
摘要翻译：要解决的问题：提供一种图像形成装置，其被配置为允许含有增塑剂的液体在使用环境温度或更高的环境温度下显示其功能，以防止除了调色剂之外的图像形成装置中的树脂污染，以及以通过维持定影液的浓度基本上恒定来防止定影液和增塑剂的过量供给。解决方案：通过光学写入单元3将静电潜像写在感光鼓2Y，2C，2M，2K的表面上，以使用显影剂2Y，2C，2M，2K在感光鼓2Y，2C，2M，2K的表面上形成调色剂图像设备12Y，12C，12M，12K。感光鼓2Y，2C，2M，2K上的调色剂图像依次被转印到转印输送带4上。定影液施加单元18将定影液体施加到从定位辊16传送的记录介质9上。二次转印单元7将转印输送带4上的调色剂图像转印到记录介质9上。固定液体施加单元18被控制。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2011180343A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011180343A
公开(公告)日：2011-09-15
申请号：JP2010044047
申请日：2010-03-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOINUMA NORIYUKI , ISHIBASHI MIKIO , UNO MUGIJIRO , YOSHINAMI HIDEKI , NAKAGAWA ETSUNORI , HASHIMOTO SHUNICHI , MAEDA HIROAKI , OZAKI NAOYUKI , TAKAHASHI TOMOKO , YOSHIDA TAKASHI
IPC分类号： G03G15/16 , G03G15/00 , G03G15/01 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide a high-speed, high-reliable and inexpensive image forming apparatus, which forms double-sided images in an image forming form of the so-called one-path form. SOLUTION: The image forming apparatus includes: a first intermediate transfer body to which first toner images formed on a plurality of first image carriers are primarily transferred, and which is the intermediate transfer body for carrying the first toner image; and a second image carrier for carrying a second monochrome toner image. The first toner image carried on the intermediate transfer body is electrostatically transferred to a first surface of a recording medium, and the second toner image is directly electrostatically transferred to a second surface of the recording medium on a reverse side to the first surface on an upstream side or a downstream side of the intermediate transfer body in a recording medium conveying direction. The recording medium which carries the toner images on the first and second surfaces is fed to a fixing stage, to perform double-sided image fixing at a time, and a charge polarity of the first toner image carried on the intermediate transfer body is made to be different from a charge polarity of the second toner image. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供以所谓的单向形式的图像形成形式形成双面图像的高速，高可靠性和廉价的图像形成装置。图像形成装置包括：第一中间转印体，其中形成在多个第一图像载体上的第一调色剂图像首先被转印到所述第一中间转印体，并且其是用于承载第一调色剂图像的中间转印体; 以及用于承载第二单色调色剂图像的第二图像载体。将中间转印体上承载的第一调色剂图像静电转印到记录介质的第一表面上，并将第二调色剂图像直接静电转印到记录介质的第二表面上，与反应器的第一表面相反在记录介质输送方向上的中间转印体的侧面或下游侧。将承载第一和第二表面上的调色剂图像的记录介质送入定影台，一次进行双面图像定影，并将承载在中间转印体上的第一调色剂图像的电荷极性设为与第二调色剂图像的电荷极性不同。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011028202A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011028202A
公开(公告)日：2011-02-10
申请号：JP2009242154
申请日：2009-10-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA HIDEKI , NAKAI HIROSHI , OZAKI NAOYUKI , YOSHINAMI HIDEKI , UEDA TETSUHITO , HASEGAWA KUNIO , IIO MASAHITO , SEO TETSUYA , HASHIMOTO SHUNICHI
IPC分类号： G03G21/00 , G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of failure due to insufficiency or excess of a lubricant adhesive amount on a surface of a latent image carrier by lessening a change of the lubricant adhesive amount on the surface of the latent image carrier due to the change of a lubricant supply amount even when the lubricant supply amount to the surface of the latent image carrier changes. SOLUTION: A printer includes a lubricant coating device 140 supplying lubricant to the surface of a photoreceptor in a period in which the surface of the photoreceptor 10 moves, and a second lubricant supply means capable of selectively performing supply operation to supply the lubricant to the surface of the photoreceptor and non-supply operation to supply no lubricant thereto in a period in which the lubricant coating device supplies the lubricant. When a predetermined lubricant-increasing condition is satisfied, supply control to allow the second lubricant supply means to perform the supply operation and then perform the non-supply operation is performed. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过减少潜影载体表面上的润滑剂粘合剂量的变化来抑制潜影载体表面上由于润滑剂粘合剂量不足或过量而导致的故障的发生，由于即使当对潜像载体的表面的润滑剂供应量改变时，润滑剂供应量的改变也是如此。解决方案：打印机包括在感光体10的表面移动的时间段内向感光体的表面供应润滑剂的润滑剂涂覆装置140和能够选择性地进行供给操作以供应润滑剂的第二润滑剂供给装置在润滑剂涂布装置供给润滑剂的期间，向感光体的表面供给不供给动作，不供给润滑剂。当满足预定的润滑剂增加条件时，执行供给控制以允许第二润滑剂供给装置执行供给操作，然后执行非供给操作。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010197744A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2010197744A
公开(公告)日：2010-09-09
申请号：JP2009042884
申请日：2009-02-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MAEDA ICHIRO , YOSHIDA TAKESHI , YOSHII MASAKO , AOKI SHINJI , YURA JUN , SHIRAISHI EMIKO , OZAKI NAOYUKI , OGIYAMA HIROMI , SHIMIZU YASUNOBU , KOSUGE AKIO
IPC分类号： G03G15/16 , G03G15/01
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus including a pre-transfer destaticizing process, which suppresses toner scattering on an electrostatic latent image carrier caused in the pre-transfer destaticizing process, and ensures an excellent image with little image missing due to reverse transfer.
SOLUTION: In the image forming apparatus, a toner image obtained by developing an electrostatic latent image formed on the electrostatic latent image carrier is primarily transferred to an intermediate transfer body to form a transfer image, and then a secondary transfer image transferred to a recording member is fixed. The image forming apparatus includes a pre-transfer exposure device, and an electrode for generating electric field disposed to be opposed to a surface of the electrostatic latent image carrier, which are continuously disposed in order on a downstream side of a developing device in a rotating direction of the electrostatic latent image carrier, wherein the electric field within a range where discharge is not generated is formed near a part to be exposed of the electrostatic latent image carrier by the electrode for generating the electric field.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，其包括预传输去静电处理，其抑制在预转印去静电处理中引起的静电潜像载体上的调色剂飞散，并且确保具有少量图像缺失的优异图像由于反向转移。解决方案：在图像形成装置中，将形成在静电潜像载体上的静电潜像显影得到的调色剂图像主要传送到中间转印体以形成转印图像，然后将二次转印图像转印到记录部件是固定的。图像形成装置包括预转印曝光装置和用于产生电场的电极，所述电极设置成与静电潜像载体的表面相对，所述电极依次在旋转的显影装置的下游侧依次设置通过用于产生电场的电极在静电潜像载体的暴露部分附近形成静电潜像载体的方向，其中不产生放电的范围内的电场。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010134271A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010134271A
公开(公告)日：2010-06-17
申请号：JP2008311309
申请日：2008-12-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA TAKESHI , YOSHII MASAKO , MAEDA ICHIRO , AOKI SHINJI , YURA JUN , SHIRAISHI EMIKO , OZAKI NAOYUKI , OGIYAMA HIROMI , SHIMIZU YASUNOBU , KOSUGE AKIO
IPC分类号： G03G15/01 , G03G15/02 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of improving the efficiency of transfer by suppressing the occurrence of a residual image to the utmost.
SOLUTION: A PTL 27 is mounted only in a black image forming unit 4K, where an charging charger 32 is used as an charging means. The PTL 27 is not mounted in other image forming units, that is, yellow, magenta and cyan image forming units 4Y, 4M and 4C, where charging rollers 16Y, 16M and 16C are used as the charging means. An charged area by the charging device 32 is made wider than charged areas by the charging devices 16Y, 16M and 16C. In the image forming unit in which the PTL is mounted, the charging means having the charged area wider than the charged area by the charging means used in the image forming unit in which the PTL is not mounted is used, thereby the occurrence of the residual image is suppressed.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过最大限度地抑制残留图像的发生而提高传送效率的图像形成装置。解决方案：PTL 27仅安装在黑色图像形成单元4K中，其中充电充电器32用作充电装置。 PTL27未安装在使用充电辊16Y，16M和16C作为充电装置的其他图像形成单元，即黄色，品红色和青色图像形成单元4Y，4M和4C中。通过充电装置16Y，16M和16C，充电装置32的充电区域比充电区域宽。在其中安装有PTL的图像形成单元中，使用通过在未安装PTL的图像形成单元中使用的充电装置具有比充电区域宽的充电区域的充电装置，从而发生剩余图像被抑制。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010134153A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010134153A
公开(公告)日：2010-06-17
申请号：JP2008309519
申请日：2008-12-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOSUGE AKIRO , YOSHIDA TAKESHI , YOSHII MASAKO , MAEDA ICHIRO , YURA JUN , AOKI SHINJI , SHIRAISHI EMIKO , OZAKI NAOYUKI , OGIYAMA HIROMI , SHIMIZU YASUNOBU
IPC分类号： G03G21/00 , G03G15/00 , G03G15/02 , G03G15/16 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To prevent generation of an abnormal image such as an after-image to reduce the smudge of a charging roller while enhancing a merit of static elimination before transfer and lubricant application. SOLUTION: An image forming apparatus includes an imaging apparatus including: an image carrier 40, a charging means 70, an electrostatic latent image forming means 21; a developing means 60; a transfer means 11 transferring a toner image by development to paper or an intermediate transfer body 10; a static eliminating means 72 before transfer, arranged between the developing means and the transfer means; a means 83 for cleaning the image carrier after transfer; and a means 84 for applying a lubricant to the image carrier between cleaning and charging. The image forming apparatus includes a bias means 75 before charging, for applying bias potential before charging of the same polarity as the charging polarity by the charging means and larger than charging start voltage, to the image carrier between the application of the lubricant and charging, and further includes a means for switching the bias potential before charging, at timing when an image carrier part whose transfer bias is switched by the transfer means reaches the bias means. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止产生诸如后图像的异常图像以减少充电辊的污迹，同时提高转印前的静电消除的优点和润滑剂的应用。解决方案：图像形成装置包括成像装置，包括：图像载体40，充电装置70，静电潜像形成装置21; 显影装置60; 通过显影将调色剂图像转印到纸张或中间转印体10的转印装置11; 布置在显影装置和转印装置之间的转印前的静电消除装置72; 用于在传送之后清洁图像载体的装置83; 以及用于在清洁和充电之间向图像载体施加润滑剂的装置84。图像形成装置包括充电前的偏置装置75，用于在通过充电装置充电极性与充电开始电压相同的极性充电之前向施加润滑剂和充电之间的图像载体施加偏置电位，并且还包括用于在转印装置转印转印偏压的图像载体部分到达偏压装置的定时，在充电之前切换偏置电位的装置。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2010133997A Lubricant supply device, image forming apparatus, lubricant supply method, and lubricant 审中-公开
标题翻译：润滑剂供应装置，图像形成装置，润滑剂供应方法和润滑剂
公开(公告)号：JP2010133997A
公开(公告)日：2010-06-17
申请号：JP2008307020
申请日：2008-12-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUROKAWA ATSUSHI , KAWASUMI MASANORI , YAMASHITA MASAHIDE , ENOKI SHIGEKAZU , KADOTA ICHIRO , YOSHIDA TAKASHI , SUGANUMA TAKUYA , NAKAGAWA YOSHINORI , SUDO KAZUHISA , OZAKI NAOYUKI , KAYAHARA SHIN
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To reduce the non-uniformity of the amount of accumulated lubricant which is likely to occur in a main scanning direction, even if a non-uniform amount of transfer remaining toner adheres in the main scanning direction. SOLUTION: An image forming apparatus forms a toner image on a surface of a photoreceptor by being exposed to write an electrostatic latent image after uniformly charging the surface of the photoreceptor 1 and making toner adhere to an electrostatic latent image part so as to be developed. The image forming apparatus is provided with a lubricant application device 3 supplying a charged powdery lubricant to the surface of the photoreceptor with the electrostatic latent image written thereto before the charging processing in the next image forming process and after the powdery lubricant is charged to a predetermined polarity. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了减少在主扫描方向上可能发生的累积润滑剂的量的不均匀性，即使不均匀的转印剩余调色剂在主扫描方向上粘附。解决方案：图像形成装置在感光体1的表面均匀充电之后通过暴露于静电潜像而在感光体的表面上形成调色剂图像，并使调色剂粘附到静电潜像部分，从而被开发图像形成装置设置有润滑剂施加装置3，在下一图像形成处理中的充电处理之前，向感光体的表面供给带有静电潜像的静电潜像，并且在将粉状润滑剂充电至预定的极性。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2010097181A 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：JP2010097181A
公开(公告)日：2010-04-30
申请号：JP2009111208
申请日：2009-04-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ENOKI SHIGEKAZU , SUGANUMA TAKUYA , YOSHIDA TAKASHI , NAKAGAWA YOSHINORI , KUROKAWA ATSUSHI , KADOTA ICHIRO , OZAKI NAOYUKI , ATARI HIROKI , SUGIYAMA HIROYUKI , SUDO KAZUHISA , KAWASUMI MASANORI , NAKAI HIROSHI , KAYAHARA SHIN , TANAKA HIDEKI
IPC分类号： G03G15/22 , G03G21/00
CPC分类号： G03G21/0064
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that eliminates a process for cleaning a latent image carrier by preventing toner from being left on a surface of the latent image carrier after transferring a toner image formed corresponding to a latent image onto a recording medium or a toner image carrier, and to provide an image forming method. SOLUTION: The image forming apparatus includes: a photoreceptor 10; a developing device 12; and a transfer roller 7 configuring a toner image-transferring means for transferring, onto the recording medium, the toner image existing on the photoreceptor 10. The image forming apparatus further includes a coating film-feeding device 20 for feeding, onto a surface of the photoreceptor 10, a coating film F that is a coating film for coating the latent image carrier. At least in a developing position where the toner image is formed by the developing device 12, the coating film F coats the surface of the photoreceptor 10 by feeding the coating film F onto a surface of the photoreceptor 10 at a part which is a position for feeding a latent image carrier-coating film and where the photoreceptor 10 faces a charging roller 8. The coating film F is removed from the surface of the photoreceptor 10 after it passes through a transfer position B. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决方案：提供一种图像形成装置，其将将对应于潜像形成的调色剂图像转印到潜像载体的表面上之后，防止调色剂残留在潜像载体的表面上，从而消除了对潜像载体进行清洁的处理记录介质或调色剂图像载体，并提供图像形成方法。解决方案：图像形成装置包括：感光体10; 显影装置12; 以及构成调色剂图像转印装置的转印辊7，用于将存在于感光体10上的调色剂图像转印到记录介质上。图像形成装置还包括涂膜供给装置20，感光体10，作为用于涂布潜像载体的涂膜的涂膜F. 至少在由显影装置12形成调色剂图像的显影位置中，涂膜F通过将感光体10的表面上的感光体10的表面供给到感光体10的表面，供给潜像载体涂膜，感光体10面对充电辊8.涂膜F在通过转印位置B后从感光体10的表面除去。（C）2010 ，JPO＆INPIT

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