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1. 发明专利

JP2014186288A Cooling apparatus and image forming apparatus 有权
标题翻译：冷却装置和图像形成装置
公开(公告)号：JP2014186288A
公开(公告)日：2014-10-02
申请号：JP2013105536
申请日：2013-05-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKEDA KEISUKE , NAGURA MAKOTO , TATEYAMA SUSUMU , MIYAGAWA HIROAKI , TODA YASUAKI , SHOJI YUTAKA , ISHII KENJI , TAKEHARA KENICHI , FUJITANI HIROMITSU , YUASA KEISUKE , KATO SHINJI , HIRASAWA TOMOYASU
IPC分类号： G03G21/00 , G03G15/20
CPC分类号： G03G21/20 , G03G15/6573 , G03G21/206
摘要： PROBLEM TO BE SOLVED: To provide a cooling apparatus configured to improve workability in maintenance of a deteriorated cooling surface, while reducing the cost required in manufacturing a cooling member which directly or indirectly comes into contact with a recording material to cool the recording material or for maintenance of the deteriorated cooling surface of the cooling member.SOLUTION: A cooling member 110 having a cooling surface 141 for cooling a sheet P is provided so as to be brought into slide contact with an inner peripheral surface of a surface-side endless belt 161 and brought into contact with the sheet P via the surface-side endless belt 161. The cooling member 110 includes: a cooling surface member 140 having at least a cooling surface 141 formed thereon; and a heat exchange member 120 which is directly joined to the cooling surface member 140 and transmits heat absorbed therein to a radiator 181, to radiate the heat. Fastening means, such as a clamp 135, for maintaining a joined state can be separated without damage, while the cooling surface member 140 and the heat exchange member 120 are joined to each other or separated from each other.
摘要翻译：要解决的问题：提供一种冷却装置，其被配置为提高维护劣化的冷却表面的可操作性，同时降低制造直接或间接与记录材料接触以冷却记录材料的冷却构件所需的成本，或者用于维护冷却构件的劣化的冷却表面。解决方案：具有用于冷却片材P的冷却表面141的冷却构件110设置成与表面侧环形带161的内周面滑动接触并且经由表面侧环形带161与片材P接触。冷却构件110包括：至少形成有冷却表面141的冷却表面构件140; 以及热交换构件120，其直接接合到冷却表面构件140并将吸收在其中的热量传递到散热器181，以散热。当冷却表面构件140和热交换构件120彼此接合或彼此分离时，用于保持接合状态的紧固装置（例如夹具135）可以被分离而没有损坏。

2. 发明专利

JP2013190682A 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：JP2013190682A
公开(公告)日：2013-09-26
申请号：JP2012057831
申请日：2012-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KANEKO SATOSHI , KATO SHINJI , ISHIBASHI HITOSHI , HIRAI HIDEJI , KUDO KOICHI , SUZUKI SHINGO , YAMANE ATSUSHI
IPC分类号： G03G15/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that forms images by using toner and an image forming method in such image forming apparatus capable of adjusting density of images to reduce density unevenness of images due to rotational deflection of image carriers, while avoiding complexity in control and suppressing toner consumption and required time.SOLUTION: Density unevenness of an image is detected by image density detection means 52 when rotational positions of image carriers 40Y, C, M, K may be changed, and unevenness in image density caused by developing gap fluctuation components of the image carrier 40Y, C, M, K is extracted on the basis of potential distribution of surface potential detected by potential detection means 56Y, C, M, K when the image is formed and the density unevenness. Image forming means 42Y, C, M, K are operated to suppress the extracted unevenness according to conditions determined by image forming condition determination means 37.
摘要翻译：要解决的问题：提供一种通过使用调色剂和图像形成方法形成图像的图像形成装置，该图像形成装置能够调节图像的浓度以减少由于图像载体的旋转偏转引起的图像的浓度不均匀性，同时避免复杂性控制和抑制墨粉消耗和所需时间。解决方案：当图像载体40Y，C，M，K的旋转位置可能改变时图像浓度检测装置52检测到图像的浓度不均匀性，以及由显影引起的图像浓度不均匀基于由形成图像的电位检测单元56Y，C，M，K检测出的表面电位的电位分布和浓度不均匀，提取图像载体40Y，C，M，K的间隙变动分量。操作图像形成装置42Y，C，M，K，以根据由图像形成条件确定装置37确定的条件来抑制所提取的不均匀。

3. 发明专利

JP2013190681A 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：JP2013190681A
公开(公告)日：2013-09-26
申请号：JP2012057805
申请日：2012-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KANEKO SATOSHI , YAMANE ATSUSHI , KUDO KOICHI , KATO SHINJI , ISHIBASHI HITOSHI , HIRAI HIDEJI , SUZUKI SHINGO
IPC分类号： G03G15/00 , G03G15/06 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that forms images by using toner and an image forming method in such image forming apparatus capable of adjusting density of images to reduce density unevenness of images due to rotational fluctuation components of rotating bodies such as deflection of image carriers and developer carriers, while suppressing toner consumption and required time.SOLUTION: A first condition for adjusting unevenness in image density caused by rotational fluctuation components of image carriers 40Y, C, M, K being rotating bodies and/or developer carriers is determined on the basis of unevenness of an image detected by image density detection means 52, and a second condition for suppressing unevenness of an image having different density from that of such image estimated from the density unevenness is determined. First image forming means 42Y, C, M, K and second image forming means 43Y, C, M, K are operated according to the determined first and second conditions.
摘要翻译：要解决的问题：提供一种通过使用调色剂形成图像的图像形成装置和能够调整图像浓度的图像形成装置中的图像形成方法，以减少由于诸如偏转等旋转体的旋转波动成分引起的图像的浓度不均匀图像载体和显影剂载体，同时抑制调色剂消耗和所需时间。解决方案：用于调整由作为旋转体和/或显影剂载体的图像载体40Y，C，M，K的旋转波动分量引起的图像浓度不均匀性的第一条件是基于由图像浓度检测装置52检测的图像的不均匀性确定，并且确定用于抑制具有与由浓度不均匀估计的图像的密度不同的图像的不均匀性的第二条件。根据确定的第一和第二条件，操作第一图像形成装置42Y，C，M，K和第二图像形成装置43Y，C，M，K。

4. 发明专利

JP2012211937A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2012211937A
公开(公告)日：2012-11-01
申请号：JP2011076200
申请日：2011-03-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KANEKO SATOSHI , KATO SHINJI , HIRAI HIDEJI , KUDO KOICHI , SUZUKI SHINGO , YAMANE ATSUSHI
IPC分类号： G03G15/00 , G03G15/06 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus with a multistage developing system, which can reduce density unevenness caused by rotational deflection of an image carrier with high accuracy and which can sufficiently make use of advantages of the multistage developing system.SOLUTION: Voltage control means 72 comprises a CPU, a DA converter, a developing bias high voltage power supply 70, and a delay circuit 74. A density unevenness correction signal is generated from a density sensor detection signal and a photoreceptor rotational position detection signal, and a developing bias applied to developing rollers with a multistage developing system is controlled based on the photoreceptor rotational position detection signal. A correction developing bias applied to a second developing roller 56 has a phase delayed more than the correction developing bias applied to a first developing roller 54.
摘要翻译：要解决的问题：提供一种具有多级显影系统的图像形成装置，其能够以高精度降低由图像载体的旋转偏转引起的密度不均匀性，并且可以充分利用多级显影系统的优点。解决方案：电压控制装置72包括CPU，DA转换器，显影偏压高压电源70和延迟电路74.从浓度传感器检测信号和感光体旋转位置产生浓度不均匀性校正信号基于感光体旋转位置检测信号控制检测信号和施加到具有多级显影系统的显影辊的显影偏压。施加到第二显影辊56的校正显影偏压的延迟大于施加到第一显影辊54的校正显影偏压。相反：（C）2013，JPO和INPIT

5. 发明专利

JP2011215650A Image forming apparatus and charging bias adjusting method 有权
标题翻译：图像形成装置和充电偏移调整方法
公开(公告)号：JP2011215650A
公开(公告)日：2011-10-27
申请号：JP2011168127
申请日：2011-08-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIBASHI HITOSHI , FUJIMORI KOTA , HASEGAWA MAKOTO , HIRAYAMA YUJI , TAKEUCHI NOBUTAKA , KATO SHINJI , TANAKA KAYOKO , WATANABE NAOTO , TOMITA KENTARO , KOMATSUBARA SATORU , KOSUGE AKIO
IPC分类号： G03G15/02 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and an charging bias adjusting method by which charging bias can be adjusted at any time regardless of whether it is the time when an image is formed or the time when an image is not formed.SOLUTION: By adjusting peak-to-peak voltage Vpp of AC by AC voltage within the range more than twice as high as charging start voltage Vth electrifying the photoreceptor being an image carrier, an abnormal image such as surface staining is not formed even when image forming operation is performed when adjusting. Accordingly, the AC voltage can be adjusted at any time regardless of whether it is the time when the image is formed or the time when the image is not formed.
摘要翻译：要解决的问题：提供一种图像形成装置和充电偏压调整方法，其可以随时调整充电偏压，而不管是形成图像的时间还是形成图像的时间。：通过将交流电压的峰 - 峰电压Vpp调整到使作为图像载体的感光体带电的充电开始电压Vth的两倍以上的范围内，甚至在图像形成时也不形成诸如表面染色的异常图像调整时进行操作。因此，无论是形成图像的时间还是未形成图像的时间，都可以随时调整AC电压。

6. 发明专利

JP2010091785A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2010091785A
公开(公告)日：2010-04-22
申请号：JP2008261561
申请日：2008-10-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOIZUMI HIDETOMO , TAKEUCHI NOBUTAKA , YOSHIDA AKIRA , KATO SHINJI
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/0851 , G03G15/0872 , G03G15/0893
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus for preventing deterioration of development performance by continuing toner supply having errors different from an actual toner consumption amount for a development unit 7Y. SOLUTION: The image forming apparatus is provided with a toner density sensor 10Y for detecting toner density of a developer on a downstream side position rather than a toner supply opening 17Y in a first agent storing chamber 9Y of the development unit 7Y, and a supply control part not shown in the figure so as to correct a determined value of a drive amount of a toner supply device based on image information on the basis of grasped result of excess and deficiency while grasping the excess and deficiency of the toner supply amount based on the image information, on the basis of the result detected by the sensor 10Y. 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，用于通过持续不同于显影单元7Y的实际调色剂消耗量的误差的调色剂供给来防止显影性能的劣化。解决方案：图像形成装置设置有用于检测显影单元7Y的第一剂量存储室9Y中的下游侧位置而不是调色剂供应开口17Y的显影剂的调色剂浓度的调色剂浓度传感器10Y，以及在图中未示出的供应控制部分，以便在掌握过量和不足的过量和不足的情况下，基于过度和不足的获取结果，基于图像信息来校正确定的调色剂供给装置的驱动量的值基于图像信息，基于由传感器10Y检测到的结果。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2008102489A Developer conveying device, developing device, process unit, and image forming apparatus 审中-公开
标题翻译：开发商输送设备，开发设备，处理单元和图像形成设备
公开(公告)号：JP2008102489A
公开(公告)日：2008-05-01
申请号：JP2007187035
申请日：2007-07-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO SHINJI , OSHIGE WAKAKO
IPC分类号： G03G15/08
CPC分类号： G03G15/0849 , G03G15/0853 , G03G15/0893 , G03G2215/0827
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of reducing the occurrence of an erroneous detection of the toner concentration due to a fluctuation in toner bulk as compared with that is in the conventional technology, and also, capable of promptly detecting a change of the toner concentration. SOLUTION: The developer conveying device includes: a first conveyance chamber wherein a K developer 900K is conveyed in a rotation axis direction while agitating the developer with rotation of a first screw member 26K; and a K toner concentration detecting sensor 45K configured to detect the toner concentration of the K developer by having contact with the K developer conveyed inside the first conveying chamber or facing the K developer via a bottom wall 21K-6. An average of peak amounts of a pressing force on the K developer, which is conveyed inside the first conveyance chamber with the rotation of the first screw member 26K, by each one rotation of the screw with respect to the toner concentration detecting sensor 45K or an average of peak amounts of a pressing force on the K developer 900K by each one rotation of the screw with respect to a portion of the bottom wall 21K-6 facing the toner concentration detecting sensor 45K is set within a range of 9.8×15 [N/m 2 ] to 9.8×100 [N/m 2 ]. 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，其能够与常规技术相比能够减少由于调色剂体积的波动引起的调色剂浓度的错误检测的发生，并且还能够及时地检测调色剂浓度的变化。解决方案：显影剂输送装置包括：第一输送室，其中K显影剂900K沿旋转轴线方向输送，同时通过第一螺杆构件26K的旋转搅动显影剂; 以及K调色剂浓度检测传感器45K，其被配置为通过与在第一输送室内输送的K显影剂或经由底壁21K-6面对K显影剂来检测K显影剂的调色剂浓度。通过螺杆相对于调色剂浓度检测传感器45K的每一次旋转，在第一输送室内被第一螺杆构件26K旋转的K显影剂上的按压力的平均峰值量平均为相对于面向调色剂浓度检测传感器45K的底壁21K-6的一部分，螺杆每旋转一次，K显影剂900K上的按压力的峰值平均值设定在9.8×15 [N / m 2 ]至9.8×100 [N / m 2 ]。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2008040112A Image forming apparatus and electrifying bias adjusting method 有权
标题翻译：图像形成装置和电动偏移调整方法
公开(公告)号：JP2008040112A
公开(公告)日：2008-02-21
申请号：JP2006213758
申请日：2006-08-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIBASHI HITOSHI , FUJIMORI KOUTA , HASEGAWA MAKOTO , HIRAYAMA YUJI , TAKEUCHI NOBUTAKA , KATO SHINJI , TANAKA KAYOKO , WATANABE NAOTO , TOMITA KENTARO , KOMATSUBARA SATORU , KOSUGE AKIO
IPC分类号： G03G15/02 , G03G15/00 , G03G21/14
CPC分类号： G03G15/0266 , G03G2215/021
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and an electrifying bias adjusting method by which electrifying bias is adjusted at any time whether it is the time when an image is formed or the time when an image is not formed. SOLUTION: By adjusting peak-to-peak voltage Vpp of AC by AC voltage within twice or more as high as electrification start voltage Vth electrifying the photoreceptor that is an image carrier, an abnormal image such as surface staining is not formed even when image forming operation is performed when adjusting. Thus, the AC voltage is adjusted at any time whether it is the time when the image is formed or the time when the image is not formed. 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和通电偏压调整方法，通过该方法可以随时调整充电偏压，无论是形成图像的时间还是未形成图像的时间。解决方案：通过将交流电压的峰 - 峰电压Vpp调整到使作为图像载体的感光体带电的带电开始电压Vth的两倍或更高的两倍以上，甚至不形成异常图像，例如表面染色当调整时执行图像形成操作。因此，无论是形成图像的时间还是未形成图像的时间，都可以随时调整AC电压。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007148259A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2007148259A
公开(公告)日：2007-06-14
申请号：JP2005345761
申请日：2005-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIRAYAMA YUJI , KATO SHINJI , HASEGAWA MAKOTO , FUJIMORI KOUTA , TAKEUCHI NOBUTAKA , TANAKA KAYOKO , KOBAYASHI KAZUMI , ENAMI TAKASHI , SHIMIZU KIICHIRO
IPC分类号： G03G15/00 , G01N21/47
摘要： PROBLEM TO BE SOLVED: To overcome the problem, wherein the amount of toner deposition cannot be calculated with high accuracy, when light-reflecting sensors have individual characteristics.
SOLUTION: A storage means is provided for storing "data for indicating regular reflection light detecting output or diffuse reflection light detecting output, with respect to individual reference reflectors of the light-reflecting sensors", which is measured, in advance. Arithmetic processings are performed which calculates the amount of toner deposited for toner deposition patterns with a calculation means, by using the data stored in the storage means.
COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2007148134A Picture quality control device, image forming apparatus, and picture quality control method 审中-公开
标题翻译：图像质量控制装置，图像形成装置和图像质量控制方法
公开(公告)号：JP2007148134A
公开(公告)日：2007-06-14
申请号：JP2005344279
申请日：2005-11-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FUJIMORI KOUTA , HIRAYAMA YUJI , KATO SHINJI , TAKEUCHI NOBUTAKA , TANAKA KAYOKO , KOBAYASHI KAZUMI , HASEGAWA MAKOTO , ENAMI TAKASHI , SHIMIZU KIICHIRO
IPC分类号： G03G15/00 , H04N1/23
CPC分类号： G03G15/5033 , G03G15/0131 , G03G15/5058 , G03G2215/00042 , G03G2215/00059 , G03G2215/0119 , G03G2215/0164
摘要： PROBLEM TO BE SOLVED: To solve the problem that a down time of a device due to picture control operation is long and that damage to the device due to the picture quality control operation is large. SOLUTION: The present invention relates to a picture quality control device for image forming apparatus that performs image forming operation to form images on image carriers 3Y, 3M, 3C, and 3Bk and transfer them to a recording medium and also performs picture quality control operation to form toner patterns on the image carriers 3Y, 3M, 3C, and 3Bk and control picture quality. When the picture quality control operation is performed in the image forming operation, switching conditions of the image forming operation at the time of transition from the image forming operation to the picture quality control operation are determined based upon information on image formation conditions in the image forming operation and image formation condition in the picture quality control operation. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了解决由于图像控制操作导致的设备的停机时间长以及由于图像质量控制操作而对设备造成的损坏的问题。解决方案：本发明涉及一种用于图像形成装置的图像质量控制装置，其执行图像形成操作以在图像载体3Y，3M，3C和3Bk上形成图像，并将它们转印到记录介质上并且还执行图像质量控制操作以在图像载体3Y，3M，3C和3Bk上形成调色剂图案，并控制图像质量。当在图像形成操作中执行图像质量控制操作时，基于图像形成中的图像形成条件的信息来确定从图像形成操作到图像质量控制操作的转换时的图像形成操作的切换条件操作和图像形成条件在图像质量控制操作中。版权所有（C）2007，JPO＆INPIT

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