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11. 发明专利

JP2011197272A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011197272A
公开(公告)日：2011-10-06
申请号：JP2010062758
申请日：2010-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ADACHI TOMOYA , MURAYAMA SHIN , YAMAMOTO MASASHI , FUJII TOMOHIKO , SHIMIZU YOSHIYUKI
IPC分类号： G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that is miniaturized at low cost, and also prevents a recording medium from being soiled due to background fogging.SOLUTION: The image forming apparatus is capable of transferring an image in a partial separation mode in which image carriers 2Y, 2M and 2C of a plurality of image carriers 2Y, 2M, 2C, and 2Bk other than the image carrier 2Bk on which an image is formed are set so as not to be brought into contact with a recording medium. The image forming apparatus is provided with an information acquirer for acquiring the quality information of toner used for the image formed on the image carrier 2Bk in the partial separation mode; and a controller for controlling, on the basis of the quality information of the toner acquired by the information acquirer, whether to bring the image carriers 2Y, 2M, and 2C on which image are not formed into contact with the recording medium after image transfer.
摘要翻译：要解决的问题：提供一种以低成本小型化的图像形成装置，并且还防止记录介质由于背景雾化而被污染。解决方案：图像形成装置能够以部分分离模式传送图像设置除了形成有图像的图像载体2Bk以外的多个图像载体2Y，2M，2C和2Bk的图像载体2Y，2M和2C被设定为不与记录介质接触。图像形成装置设置有用于获取在部分分离模式中形成在图像载体2Bk上的图像的调色剂的质量信息的信息获取器; 以及控制器，用于基于由信息获取器获取的调色剂的质量信息，控制在图像转印之后是否使图像载体2Y，2M和2C在其上形成与记录介质接触的图像载体2Y，2M和2C。

12. 发明专利

JP2010217659A Developing device, process cartridge, and image forming apparatus 审中-公开
标题翻译：开发设备，过程盒和图像形成装置
公开(公告)号：JP2010217659A
公开(公告)日：2010-09-30
申请号：JP2009065833
申请日：2009-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA SHINTARO , YAMAMOTO MASASHI , SAKAGAWA YOSHIO , SHIMIZU YOSHIYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device for providing a stable image quality for a long time without causing charge variation by a layer control member. SOLUTION: A developer reset member 108 is disposed in contact with a developing roller 103 on the upstream side of a layer control member 104 in a rotating direction of a developing roller (developer carrier). The developer reset member 108 has a window 109 (hole 110) extended in the axial direction of the developing roller 103, and passes the developer stripped from the developing roller 103 to the opposite side to the developing roller via the window 109 (hole 110). Thus, the developer remaining on the developing roller 103 after passing through a development area is collected certainly, and occurrence of the charge variation by the layer control member is prevented. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于长时间提供稳定图像质量而不会由层控制构件引起电荷变化的显影装置。解决方案：显影剂复位构件108设置成与显影辊（显影剂载体）的旋转方向上的层控制构件104的上游侧的显影辊103接触。显影剂复位构件108具有在显影辊103的轴向上延伸的窗口109（孔110），并且经由窗口109（孔110）将从显影辊103剥离的显影剂通过显影辊的相对侧，。因此，肯定地收集通过显影区域后残留在显影辊103上的显影剂，并且防止了层控制构件的电荷变化的发生。版权所有（C）2010，JPO＆INPIT

13. 发明专利

JP2007316215A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2007316215A
公开(公告)日：2007-12-06
申请号：JP2006143971
申请日：2006-05-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TERAO MASAICHI , YAMAMOTO MASASHI , MATSUMOTO SHOGO
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of restraining image quality defects such as transfer void, transfer dust, and so on by restraining discharge that arises in an empty space in the entrance of a nip area, and capable of restraining a cost increase by eliminating the need for a complex mechanism and additional members.
SOLUTION: On the inner periphery of a beltlike image carrier 100, a counter roller 103 is disposed to press the beltlike image carrier 100 to a transfer belt 101. On the inner periphery of the transfer belt 101, a transfer roller 102 is disposed so as to press the transfer belt 101 to the beltlike image carrier 100. In the area of contact between the beltlike image carrier 100 and transfer belt 101, a transfer electric field is generated, thus, a toner image formed on the beltlike image carrier 100 is transferred to a transfer material 104 conveyed by the transfer belt 101. In the image forming apparatus having the foregoing configuration, the transfer roller 102 is disposed upstream of the counter roller 103 in the moving direction of the beltlike image carrier 100.
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，其能够通过抑制在辊隙区域的入口处的空白空间中产生的排出来抑制诸如转印空隙，转印灰尘等的图像质量缺陷，并且能够通过消除对复杂机制和额外成员的需求来限制成本增长。解决方案：在带状图像载体100的内周上设置有相对辊103将带状图像载体100压向转印带101.在转印带101的内周上，转印辊102是被设置为将转印带101压向带状图像载体100.在带状图像载体100和转印带101之间的接触区域中，产生转印电场，因此，形成在带状图像载体上的调色剂图像 100转移到由转印带101输送的转印材料104.在具有上述结构的图像形成装置中，转印辊102沿着带状图像载体100的移动方向设置在对置辊103的上游。
版权所有（C）2008，JPO＆INPIT

14. 发明专利

JP2004134925A Image forming apparatus 审中-公开
公开(公告)号：JP2004134925A
公开(公告)日：2004-04-30
申请号：JP2002295761
申请日：2002-10-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO MASASHI
IPC分类号： G03G21/00 , G03G15/01 , G06T1/00 , H04N1/04
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus with a simple configuration capable of automatically calculating a length of an original in main / sub scanning directions and forming an image with high quality on transfer paper. SOLUTION: The image forming apparatus is configured such that a non light shield state of a read original of an indeterminate form is confirmed, an image storage section 5 stores read image data in a read maximum size area while an image read section 6 is in a non light shield state, scanning is started from a final end pixel of the maximum size area in the main / sub scanning directions in the maximum size area and a first white pixel detecting position in the main / sub scanning directions is used for a tail end position of the original in the main / sub scanning directions. Further, the lengths L1, L2 of the original in the main / sub scanning directions are automatically calculated as L1=L1max(D1max-m)/D1max and L2=L2max(D2max-m)/D2max, wherein D1max, D2max are the maximum number of dots in the main / sub scanning directions and L1max, L2max are the maximum lengths in the main / sub scanning directions, a color density level of the transfer paper at the original surrounding part is selected to be the same level as an original background, and the image with high quality can be formed with a simple configuration without causing a sense of incongruity on operations in comparison with those of a conventional image forming apparatus to a user while relieving the operation load. COPYRIGHT: (C)2004,JPO

15. 发明专利

JP2012181496A Developing device, process cartridge, image forming apparatus, and image forming method 审中-公开
标题翻译：开发设备，处理盒，图像形成装置和图像形成方法
公开(公告)号：JP2012181496A
公开(公告)日：2012-09-20
申请号：JP2011231052
申请日：2011-10-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MURAYAMA SHIN , YAMAMOTO MASASHI , ADACHI TOMOYA , FUJITA MASAYA , SHIMIZU YOSHIYUKI , FUJII TOMOHIKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To suppress occurrence of recovery failure of reversely charged toner particles.SOLUTION: After a toner thin layer is formed by regulating the thickness of a toner layer on a surface of a toner carrier 134Y by a regulating member 136Y, reversely charged toner particles included in the toner thin layer are recovered to a surface of a reversely charged toner recovering member 138Y in a reversely charged toner recovery nip. The toner thin layer after the recovering process is made to contribute to development in a developing nip formed by the contact between a photoreceptor 11Y and the toner carrier 134Y. In this configuration, a recovery member nip pass time T1 [s], which is a time period when the surface of the reversely charged toner recovery member 138Y, by the rotation thereof, passes through the reversely charged toner recovery nip, is controlled to be longer than 0.02 [s].
摘要翻译：解决的问题：为了抑制带电荷的调色剂颗粒的恢复失败的发生。解决方案：通过调节调色剂载体134Y调色剂载体134Y表面上的调色剂层的厚度形成调色剂薄层之后，包含在调色剂薄层中的反向带电的调色剂颗粒被回收到反向充电的调色剂回收部件138Y中的反向充电的调色剂回收部件138Y。回收处理后的调色剂薄层有助于通过感光体11Y和调色剂载体134Y之间的接触形成的显影间隙的显影。在该结构中，通过反转电荷的调色剂回收部件138Y的旋转通过反向充电的调色剂回收辊隙的时间段，恢复部件夹持通过时间T1 [s]被控制为长于0.02 [s]。版权所有（C）2012，JPO＆INPIT

16. 发明专利

JP2005175530A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005175530A
公开(公告)日：2005-06-30
申请号：JP2003408061
申请日：2003-12-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO MASASHI
IPC分类号： B41J29/38 , G03G21/00 , G03G21/04 , H04N1/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of providing an optimum operation environment to each user using the apparatus. SOLUTION: This image forming apparatus is provided with 1-10 to 1-15 in addition to conventional respective sections 1-1 to 1-9 concerning image forming. The multiple user information storage 1-10 stores the user name and password of a user using the apparatus and an operation environment of each user. A user identification section 1-11 performs user identification on the basis of the information stored in 1-10. Each of storages 1-12 to 1-14 stores the operation environment of a user who is identified by 1-11 and presently in a log-in state to the apparatus. Since an application device such as a copy or facsimile machine is executed in each of the operation environment stored in 1-12 to 1-14, the change in an operation environment can be performed for each user who has logged in the apparatus. The access right storage section 1-15 storages an access right for each item of the operation environment for each user using the apparatus. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够使用该装置向每个用户提供最佳操作环境的图像形成装置。解决方案：该图像形成装置除了关于图像形成的常规相应部分1-1至1-9之外还具有1-10至1-15。多用户信息存储装置1-10存储使用者的用户名和密码以及每个用户的操作环境。用户识别部分1-11根据1-10中存储的信息进行用户识别。存储器1-12至1-14中的每个存储由1-11识别并且当前处于登录状态的用户的操作环境。由于在存储在1-12至1-14中的每个操作环境中执行诸如复印或传真机之类的应用设备，所以可以对已登录该设备的每个用户执行操作环境的改变。访问权限存储部分1-15使用该设备为每个用户存储每个操作环境项目的访问权限。版权所有（C）2005，JPO＆NCIPI

17. 发明专利

JP2005117405A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005117405A
公开(公告)日：2005-04-28
申请号：JP2003349576
申请日：2003-10-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO MASASHI
IPC分类号： B41J21/00 , G03G15/00 , G03G21/00 , H04N1/00 , H04N1/387
摘要： PROBLEM TO BE SOLVED: To provide an image forming device for forming an image by saving a paper resource while maintaining satisfactory image quality. SOLUTION: In a copying machine 1, an original size detecting part 8 detects the size of an original set in a reading part 4, the reading part 4 reads an image of the original and the read image is stored in an image storage part 7. In the copying machine 1, an image dividing part 9 divides image data of the image storage part 7 into two in a longitudinal direction, a paper feeding part 10 transports transfer paper corresponding to the size of the two-divided image to a writing part 5, and the writing part 5 forms an image of the first half part of the divided image on the transfer paper. The copying machine 1 executes saving mode processing in which a paper reversing part 11 reverses the front face and the rear face of the transfer paper with the image of the first half of the image formed thereon to transport the transfer paper to writing part 5 again and an image of the latter half part of the divided image is formed on the rear face of the transfer paper. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过在保持令人满意的图像质量的同时保存纸资源来形成图像的图像形成装置。解决方案：在复印机1中，原稿尺寸检测部件8检测读取部件4中的原稿尺寸，读取部件4读取原稿的图像，并将读取的图像存储在图像存储器在复印机1中，图像分割部分9将图像存储部分7的图像数据沿长度方向分成两部分，送纸部分10将与二分割图像的尺寸对应的转印纸传送到书写部分5和书写部分5在转印纸上形成分割图像的前半部分的图像。复印机1执行保存模式处理，其中纸张反转部分11使形成在其上的图像的前半部分的图像反转转印纸的正面和后表面，以将转印纸再次传送到书写部分5，分割图像的后半部分的图像形成在转印纸的后表面上。版权所有（C）2005，JPO＆NCIPI

18. 发明专利

JP2004072338A Facsimile equipment and facsimile system 审中-公开
公开(公告)号：JP2004072338A
公开(公告)日：2004-03-04
申请号：JP2002227815
申请日：2002-08-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO MASASHI
IPC分类号： H04N1/32 , H04N1/387 , H04N1/46 , H04N1/60
摘要： PROBLEM TO BE SOLVED: To make it possible to set an operating condition of a multicolor mode on the receiving side adaptively to a using condition of an image forming part and to improve convenience in a facsimile (FAX) system to be driven in a multicolor communication mode.
SOLUTION: When the receiving side has a dichroic printing function e.g., the transmitting side generates a page image in each of two colors, stores respective page images of two colors in an image storage part 15 and performs operation of a dichroic communication mode for transmitting images of two pages as one communication unit from a FAX control part 19 at the time of transmission. On the receiving side, whether declaration for permitting the reception of the dichroic communication mode is performed or not is instructed by user operation and a monochromatic operation mode or the dichroic operation mode is selected in accordance with the instruction to diversify the using formats. If one of dichroic printing image forming parts is unusable, substitutive processing (for synthesizing dichroic data by an image synthesis part 20 and performing substitutive reception of monochromatic printing/no-printing) of received dichroic data is set by user operation to evade the abnormality of printing-out and to obtain a usable output.
COPYRIGHT: (C)2004,JPO

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