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1. 发明专利

JP2012163764A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2012163764A
公开(公告)日：2012-08-30
申请号：JP2011023925
申请日：2011-02-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： URAYAMA TAICHI , KAWASUMI MASANORI , WATANABE HIDEYO , KADOTA ICHIRO , TAGUMA KENICHI , YAMAMOTO KOSUKE , UEDA TETSUHITO , SEKIGUCHI SHO , HASEGAWA KUNIO
IPC分类号： G03G21/00 , G03G15/00 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of preventing wear of an image carrier, a filming phenomenon, and contamination and toner slipping of a charging member with lapse of time, stably forming images with good qualities for a long period of time, and reducing a supply amount of a protecting agent to the minimum requirement, and thereby, reducing the cost.SOLUTION: The image forming apparatus (copying machine 1) includes: an apparatus main body 1a; an image carrier (photoreceptor drum Y); a charging member (charging roller 31a); a cleaning member (cleaning blade 33a); a protecting agent block 34a comprising a fatty acid metal salt and an inorganic lubricant; a foam roller 34b; and biasing means that biases the foam roller 34b to the image carrier (photoreceptor drum Y). The apparatus is further provided with outside air temperature measuring means (outside air temperature sensor) for measuring air temperature outside the apparatus main body 1a. A biting amount of the foam roller 34b to the image carrier (photoreceptor drum Y) is adjusted in accordance with the outside air temperature measured by the outside air temperature measuring means (outside air temperature sensor).
摘要翻译：要解决的问题：为了提供能够防止图像载体磨损，成膜现象以及充电部件随时间的污染和调色剂滑动的图像形成装置，能够长时间稳定地形成具有良好品质的图像的时间，并将保护剂的供给量减少到最低要求，从而降低成本。图像形成装置（复印机1）包括：装置主体1a; 图像载体（感光鼓Y）; 充电部件（充电辊31a）; 清洁构件（清洁刮板33a）; 包含脂肪酸金属盐和无机润滑剂的保护剂块34a; 泡沫辊34b; 以及将发泡辊34b偏压到图像载体（感光鼓Y）的偏置装置。该装置还设置有用于测量设备主体1a外部的空气温度的外部空气温度测量装置（外部空气温度传感器）。根据由外部空气温度测量装置（外部空气温度传感器）测量的外部空气温度，调节向图像载体（感光鼓Y）的发泡辊34b的咬合量。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012155098A Toner concentration detection device and image forming apparatus 审中-公开
标题翻译：调色剂浓度检测装置和图像形成装置
公开(公告)号：JP2012155098A
公开(公告)日：2012-08-16
申请号：JP2011013421
申请日：2011-01-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAGUMA KENICHI , KAWASUMI MASANORI , WATANABE HIDEYO , KADOTA ICHIRO , YAMAMOTO KOSUKE , UEDA TETSUHITO , URAYAMA TAICHI , SEKIGUCHI SHO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a toner concentration detection device capable of detecting the toner concentrations of respective colors, in such a configuration that developers of a plurality of colors are stirred by one drive source and to provide an image forming apparatus.SOLUTION: The toner concentration detection device includes a developing unit storing a developer of a predetermined color and stirring means stirring the developer in the developing unit and is configured in such a manner that a plurality of stirring means are provided in correspondence to a plurality of colors of developers, a plurality of clutches are provided in correspondence to the plurality of stirring means, and one drive source for supplying drive power to the plurality of stirring means is connected to the plurality of clutches, to turn on and off the drive power from one drive source in each clutch and turn on and off each drive of the stirring means. The drive power is sequentially turned on and off in each clutch. At this time, each of the torque of the stirring means corresponding to the clutch by which the drive power is turned on and off or the variation of a current supplied to the stirring means is detected to detect the toner concentration of the developer in each developing unit corresponding to each of the plurality of stirring means.
摘要翻译：要解决的问题：提供一种能够检测各种颜色的调色剂浓度的调色剂浓度检测装置，在这样的配置中，通过一个驱动源搅拌多种颜色的显影剂并提供图像形成装置。调色剂浓度检测装置包括存储预定颜色的显影剂的显影单元和搅拌显影单元中的显影剂的搅拌装置，并且被配置成使得多个搅拌装置对应于多个显影剂的颜色，与多个搅拌装置相对应地设置有多个离合器，并且用于向多个搅拌装置供给驱动力的一个驱动源连接到多个离合器，以使驱动器接通和断开每个离合器中的一个驱动源的动力，并打开和关闭搅拌装置的每个驱动装置。在每个离合器中依次打开和关闭驱动电源。此时，检测对应于驱动力接通和关闭的离合器的搅拌装置的扭矩或者提供给搅拌装置的电流的变化，以检测每个显影剂中显影剂的调色剂浓度单元对应于多个搅拌装置中的每一个。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2012103531A Lubricant supply device, process cartridge, and image forming apparatus 有权
标题翻译：润滑剂供应装置，工艺盒和图像形成装置
公开(公告)号：JP2012103531A
公开(公告)日：2012-05-31
申请号：JP2010252621
申请日：2010-11-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , KAWASUMI MASANORI , KOJIMA TSUNEJI , TANAKA SHINYA , KAMIHARA KAZUAKI , TANAKA HIDEKI
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide a lubricant supply device that constantly supplies lubricant on an image carrier in a stable and uniform manner without experiencing shortage of lubricant to be supplied on an image carrier over periods of time, and accurately detects a time for replacement of solid lubricant, as well as a process cartridge, and an image forming apparatus.SOLUTION: A lubricant supply device includes: a pair of rotation members 16g that is rotatably supported by a holding member 16c that holds solid lubricant 16b; an energizing member 16h that rotates the pair of rotation members 16g so as to come into pressure contact with a case 16c, and energizes the holding member 16c in a direction to come close to a lubricant supply roller 16a; and detection means 31 for detecting that the pair of rotation members 16g has rotated to a position exceeding a predetermined rotation range, and thereby detecting a time for replacement of the solid lubricant 16b.
摘要翻译：要解决的问题：提供一种润滑剂供应装置，其以稳定和均匀的方式不断地在图像载体上供应润滑剂，而不会在一段时间内不经历在图像载体上供应的润滑剂，并且准确地检测时间用于更换固体润滑剂，以及处理盒和成像设备。解决方案：润滑剂供给装置包括：一对旋转构件16g，其由保持固体润滑剂16b的保持构件16c可旋转地支撑; 使一对旋转部件16g旋转以与壳体16c压力接触的供能部件16h，并使保持部件16c沿着靠近润滑剂供给辊16a的方向通电; 以及检测装置31，用于检测一对旋转构件16g已经旋转到超过预定旋转范围的位置，从而检测固体润滑剂16b的更换时间。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011197122A Lubricant applying device, image forming apparatus, process unit, and holding member holding solid lubricant 有权
标题翻译：润滑油涂布装置，图像形成装置，加工单元和保持构件保持固体润滑剂
公开(公告)号：JP2011197122A
公开(公告)日：2011-10-06
申请号：JP2010061293
申请日：2010-03-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIYAMA HIROYUKI , TANAKA HIDEKI , KAWASUMI MASANORI , KAYAHARA SHIN , KOJIMA TSUNEJI , SUGANUMA TAKUYA , ISHIKURA YUJI
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To avoid the generation of lateral movement of a solid lubricant 10Y.SOLUTION: A guide groove GD regulates the movement in a rotational axis line direction of the solid lubricant 10Y to which a force in the rotational axis line direction is applied in addition to a force in a rotational direction in a rubbing surface against a rotating applying brush roller 7Y, while permitting the movement in a direction toward the applying brush roller 7Y of the solid lubricant 10Y energized toward the applying brush roller 7Y by a spring 19Y, to guide the movement toward the applying brush roller 7Y of the solid lubricant 10Y. The guide groove GD is provided in the inwall surface of a casing. A projecting part 18Y, which is engaged with the guide groove GD so that the movement in the rotational axis line direction is regulated while permitting the movement in the direction toward the applying brush roller 7Y, is provided in a holding member 17Y.
摘要翻译：要解决的问题：为了避免产生固体润滑剂10Y的横向运动。解决方案：引导槽GD调节在施加旋转轴线方向的力的固体润滑剂10Y的旋转轴线方向上的移动除了在旋转方向上的旋转方向上的力抵抗旋转的施加刷辊7Y，同时允许通过弹簧19Y向朝向施加刷辊7Y通电的固体润滑剂10Y的施加刷辊7Y的方向移动以引导向固体润滑剂10Y的施加刷辊7Y的移动。引导槽GD设置在壳体的内壁表面中。在保持构件17Y中设置有与引导槽GD接合以使得沿着旋转轴线方向的移动被允许沿朝向施加刷辊7Y的方向的移动被调节的突出部18Y。

5. 发明专利

JP2011048164A Image forming apparatus and method 审中-公开
标题翻译：图像形成装置和方法
公开(公告)号：JP2011048164A
公开(公告)日：2011-03-10
申请号：JP2009196766
申请日：2009-08-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGANUMA TAKUYA , SATO MASAHIKO , KAWASUMI MASANORI , SUZUKI HIROKATSU , TAMURA HIROOMI , SAITO KAZUYA , TAKAHASHI TOMOKO , SUDO KAZUHISA , HASHIMOTO SHUNICHI , FURUYA SEIJI , SHINSHI AKIRA , UNO MUGIJIRO
IPC分类号： G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To control an image forming condition with high accuracy at fewer levels by eliminating time wastefully consumed when the determination of the image forming condition is controlled.
SOLUTION: A transfer process is performed by assigning three levels to currents applied to a primary transfer means 5 for each of K, C, M, and Y stations (image forming units 10) and a primary transfer condition is set. In this case, Bk, C, M and Y transfer currents are made to respectively correspond to control factors in an L9 orthogonal table and transfer currents 20μA, 25μA and 30μA are associated with the levels 1, 2 and 3. For experiment conditions (experiment numbers or assigned numbers) No. 1 to No. 9, transfer current set values are determined with reference to the orthogonal table.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过在控制图像形成条件的确定时消除浪费时间的时间，以较低的水平控制图像形成条件。解决方案：通过为K，C，M和Y站（图像形成单元10）中的每一个为一次传送装置5施加的电流分配三个等级来执行传送处理，并且设置一次传送条件。在这种情况下，Bk，C，M和Y转移电流分别对应于L9正交表中的控制因子，并且传输电流20μA，25μA和30μA与等级1,2和3相关联。对于实验条件（实验号码或分配号码）1〜9号，转移电流设定值参照正交表确定。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011039480A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011039480A
公开(公告)日：2011-02-24
申请号：JP2010026343
申请日：2010-02-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FURUYA SEIJI , SATO MASAHIKO , KAWASUMI MASANORI , SUZUKI HIROKATSU , TAMURA HIROOMI , SAITO KAZUYA , SUGANUMA TAKUYA , UNO MUGIJIRO , HASHIMOTO SHUNICHI , SHINSHI AKIRA , SUDO KAZUHISA , TAKAHASHI TOMOKO
IPC分类号： G03G15/16
CPC分类号： G03G15/167 , G03G15/0194 , G03G2215/0132
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that can eliminate the possibility that minute voids where discharge phenomenon occurs are formed between a transfer material conveyer belt and a transfer material and that can deter outputting of an abnormal image caused by the discharge phenomenon. SOLUTION: An intermediate transfer belt 9 that carries and conveys a toner image transferred from a second photoreceptor 6 and the transfer material conveyer belt 10, that conveys the transfer material are arranged so that a transfer material conveyer side of the transfer material conveyer belt 10 can bend at the intermediate transfer belt 9 and configured so that the toner image can be transferred from the intermediate transfer belt 9 to the transfer material on the transfer material conveyer belt 10; and a first photoreceptor 11 that forms the toner image and the transfer material conveyer belt 10 are arranged so that the transfer material conveyer side of the transfer material conveyer belt 10 can bend at the first photoreceptor 11 and configured so that the toner image can be transferred from the first photoreceptor 11 to the transfer material on the transfer material conveyer belt 10, and by moving the transfer material along the bent transfer material conveyer belt 10, the transfer material is made to firmly attach to the transfer material conveyer belt by a restoring force due to the rigidity of the transfer material itself. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，其可以消除在转印材料输送带和转印材料之间形成发生放电现象的微小空隙的可能性，并且可以阻止由该转印材料输送带和转印材料引起的异常图像的输出放电现象。解决方案：传送和传送从传送转印材料的第二感光体6和转印材料输送带10转印的调色剂图像的中间转印带9布置成转印材料输送机的转印材料输送机一侧带10可以在中间转印带9处弯曲并且被构造成使得调色剂图像可以从中间转印带9转印到转印材料输送带10上的转印材料上; 并且形成调色剂图像的第一感光体11和转印材料输送带10被布置成使得转印材料输送带10的转印材料输送机侧可以在第一感光体11处弯曲并且被配置为使得可以转印调色剂图像从第一感光体11到转印材料输送带10上的转印材料，并且通过沿着弯曲的转印材料输送带10移动转印材料，使转印材料通过恢复力牢固地附着到转印材料输送带上由于转印材料本身的刚性。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2011022316A Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：JP2011022316A
公开(公告)日：2011-02-03
申请号：JP2009166654
申请日：2009-07-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , SATO MASAHIKO , UNO MUGIJIRO , KAWASUMI MASANORI , SUDO KAZUHISA , HASHIMOTO SHUNICHI , SHINSHI AKIRA , FURUYA SEIJI , TAKAHASHI TOMOKO , SUGANUMA TAKUYA , TAMURA HIROOMI , SUZUKI HIROKATSU
IPC分类号： G03G15/01 , G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming device preventing productivity from being reduced when a recording sheet passes through a first image formation mode to a second image formation mode continuously and preventing formation of abnormal image. SOLUTION: This image forming device starts separation operation for separating a transfer conveyance belt 8 from an intermediate transfer belt 6 after a recording sheet on which a full color image is transferred has passed a secondary transfer nip when the next image formation mode after full color mode being the first image formation mode is executed is monochrome mode being the second image formation mode, and conveys the recording sheet on which a monochrome image is transferred to a direct transfer nip during the separation operation. The separation operation is completed in a period from the end of transfer of a black toner image on the recording paper having a three color toner image formed on it to the formation of a latent image corresponding to the monochrome image on a photosensitive member 1B in an image formation unit 12B. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，当记录纸张连续通过第一图像形成模式至第二图像形成模式时，防止生产力降低，并且防止异常图像的形成。解决方案：该图像形成装置开始分离操作，用于当转印有全色图像的记录纸通过二次转印辊隙时，当转印传送带8与中间转印带6分离时，当下一个图像形成模式作为第一图像形成模式的全色模式是作为第二图像形成模式的单色模式，并且在分离操作期间将其上传送有单色图像的记录纸张传送到直接传送辊隙。分离操作在从其上形成有三色调色剂图像的记录纸上的黑色调色剂图像转印结束到在感光部件1B上形成与单色图像相对应的潜像的期间内完成图像形成单元12B。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2011013561A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011013561A
公开(公告)日：2011-01-20
申请号：JP2009158998
申请日：2009-07-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWASUMI MASANORI , SATO MASAHIKO , FURUYA SEIJI , HASHIMOTO SHUNICHI , SUDO KAZUHISA , TAKAHASHI TOMOKO , SHINSHI AKIRA , SUZUKI HIROKATSU , TAMURA HIROOMI , SUGANUMA TAKUYA , SAITO KAZUYA , UNO MUGIJIRO
IPC分类号： G03G15/01 , G03G15/16 , G03G21/00 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus independently including a black image forming section and color image forming sections, the image forming apparatus extending the life of a color photoreceptor by application of a lubricant thereto, allowing black toner to be recyclable, and preventing defects in image formation such as a void in an image detection pattern and deterioration in transfer ratio.SOLUTION: The image forming apparatus includes: an intermediate transfer device in which first image forming sections each comprising a plurality of image forming sections are arranged adjacent to each other and images are sequentially superposed and transferred from each of the image forming sections along the arrangement direction of the image forming sections of the first image forming section; and a transfer means which collectively transfers the images that have been superposed and transferred to transfer material. The image forming apparatus further includes a second image forming section which faces a secondary transfer belt and disposed downstream of the secondary transfer belt of the transfer means carrying out the batch transfer. The image forming apparatus having a mechanism for applying the lubricant only to the image carrier of the first image forming section is provided.
摘要翻译：要解决的问题：为了提供独立地包括黑色图像形成部分和彩色图像形成部分的图像形成装置，图像形成装置通过施加润滑剂来延长彩色感光体的寿命，允许黑色调色剂可再循环，并且防止图像形成中的缺陷，例如图像检测图案中的空隙和传送比率的劣化。解决方案：图像形成装置包括：中间转印装置，其中包括多个图像形成部分的第一图像形成部分邻近每个图像形成部分沿着第一图像形成部分的图像形成部分的排列方向依次重叠和转印图像; 以及传送装置，其共同地将已经重叠和传送的图像传送到传送材料。图像形成装置还包括第二图像形成部，其面对二次转印带并且设置在进行批量转印的转印装置的二次转印带的下游。提供了具有将润滑剂仅施加到第一图像形成部的图像载体的机构的图像形成装置。

9. 发明专利

JP2010262316A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2010262316A
公开(公告)日：2010-11-18
申请号：JP2010185808
申请日：2010-08-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YONEDA TAKUJI , ONO HIROSHI , KAWASUMI MASANORI , ARAI YUJI , KOIKE TOSHIO , AMAMIYA MASARU , OJIMI ATSUYA , FUJISHIRO TAKATSUGU , TOMITA MASAMI , MIZUISHI HARUJI , ISHIBASHI HITOSHI
IPC分类号： G03G21/00 , G03G15/02 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a high-image-quality image forming apparatus configured to prevent uneven charging and filming by preventing a resonance between the charging frequency of an AC voltage and the turning-fork driving frequency of a surface potential sensor. SOLUTION: The image forming apparatus includes at least: a photoreceptor 1 which carries a latent image thereon; a charging device 2 for uniformly charging the surface of the photoreceptor 1 with a charging bias voltage where the AC bias voltage is superposed on a DC bias voltage; and the surface potential sensor 8 for measuring the surface potential of the photoreceptor, wherein a relationship of fc≠fvsen×n and fc×n≠fvsen (n is integer) is established, when a frequency of the AC bias voltage is denoted as (fc), and the drive frequency of the surface potential sensor is denoted as (fvsen). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种高图像质量的图像形成装置，其被配置为通过防止AC电压的充电频率和表面电位传感器的叉车驱动频率之间的共振来防止不均匀的充电和成膜。解决方案：图像形成装置至少包括：在其上承载潜像的感光体1; 用于以AC偏置电压叠加在DC偏置电压上的充电偏压来均匀地对感光体1的表面进行充电的充电装置2; 以及用于测量感光体的表面电位的表面电位传感器8，其中，当AC偏置电压的频率被表示为（）时，fc≠fvsen×n和fc×n≠fvsen（n为整数）的关系为 fc），表面电位传感器的驱动频率表示为（fvsen）。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010262136A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010262136A
公开(公告)日：2010-11-18
申请号：JP2009112819
申请日：2009-05-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , SUZUKI HIROKATSU , KAWASUMI MASANORI , SUGANUMA TAKUYA , TAMURA HIROOMI
IPC分类号： G03G15/16 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which need not require a waiting time, is made inexpensive and small in size, and yields a high-quality image free from void regardless of image area to be printed and Duty.
SOLUTION: The image forming apparatus includes: a latent image carrier; a developing means for developing an electrostatic latent image on the latent image carrier with developer to be a visible image; a lubricant applying means for applying lubricant to the latent image carrier; a primary transfer means for performing primary transfer from the latent image carrier to an intermediate transfer body; a secondary transfer means opposed to the intermediate transfer body and performing secondary transfer from the intermediate transfer body to a recording medium. By changing (providing a difference of linear velocity) a ratio of linear velocity provided between the intermediate transfer body and the secondary transfer member between when paper exists (image forming time) and when paper does not exist (image non-forming time), lowering of a friction coefficient of a surface of the intermediate transfer body with lapse of time during consecutive image forming is suppressed.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供不需要等待时间的图像形成装置，其成本便宜并且尺寸小，并且产生无空白的高质量图像，而不管要打印的图像区域和Duty。解决方案：图像形成装置包括：潜像载体; 用于将潜像载体上的静电潜像显影为显影剂的显影装置; 用于向潜像载体施加润滑剂的润滑剂施加装置; 用于从潜像载体进行一次转印到中间转印体的一次转印装置; 与中间转印体相对的二次转印装置，并且执行从中间转印体到记录介质的二次转印。通过改变（提供线速度差）在纸张存在时（图像形成时间）和不存在纸张之间的中间转印体和二次转印部件之间的线速度比（图像非成形时间），降低抑制了连续成像期间中间转印体的表面的摩擦系数随时间的变化。版权所有（C）2011，JPO＆INPIT

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