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81. 发明专利

JP2004212437A Fixing device, image forming apparatus and fixing method 审中-公开
公开(公告)号：JP2004212437A
公开(公告)日：2004-07-29
申请号：JP2002378904
申请日：2002-12-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FURUYA SEIJI
IPC分类号： G03G15/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a belt fixing device in which a recording medium can always stably be transported according to circumstances and fixed while keeping a satisfactory image quality. SOLUTION: The fixing device is provided with a control means 72 for controlling applied bias of a bias applying means 71 according to the environment of use such as the humidity or temperature of the surrounding and the type of the recording medium. Then, the environment of use is detected by a detecting means 73, environment of use information is inputted by an inputting means 74 and applied bias is controlled by the control means 72 based on the output signals. A fixing belt 62 is charged by having bias applied according to the environment of use by the bias applying means, the recording medium is electrostatically adsorbed by the fixing belt and transported with the running of the fixing belt and an unfixed image is fixed to the recording medium by applying heat and pressure by being passed through a fixing nip N. COPYRIGHT: (C)2004,JPO&NCIPI

82. 发明专利

JP2004184449A Transfer device and image forming apparatus 有权
公开(公告)号：JP2004184449A
公开(公告)日：2004-07-02
申请号：JP2002347739
申请日：2002-11-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI MITSURU , OOKAJI HIROYUKI , FURUYA SEIJI , KATO TSUTOMU
IPC分类号： G03G21/00 , G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a transfer device capable of preventing the occurrence of an abnormal image due to curling or the like while suppressing the increase of cost due to the increase of the number of parts. SOLUTION: The transfer device is provided with: a belt 3 which is laid around rolls 3A and 3C installed side by side to form a horizontally spread surface H; a plurality of transfer members 8 and 8' which are arranged along the spread surface H inside a circumferential range of the belt 3; a plurality of photoreceptors 4 and 4' which face respectively the transfer member 8 and 8' with the spread surface H between; and a supporting means 100 which supports rockably the roll 3C positioned in the upstream side in the moving direction of the spread surface H and the transfer member 8' other than the transfer member 8 being the closest to the roll 3A positioned in the downstream side in the moving direction of the spread surface H among the rolls forming the spread surface H. The supporting means 100 is constituted so that the belt 3 is made nearer to and away from the photoreceptor 4' remaining the transfer member 8 which is in the closest position to the roll 3A in the downstream side in the moving direction of the spread surface H in a state where the roll 3C positioned in the upstream side in the moving direction of the spread surface H is installed on a rocking end. COPYRIGHT: (C)2004,JPO&NCIPI

83. 发明专利

JP2004109869A Simultaneous both-side image forming apparatus 有权
公开(公告)号：JP2004109869A
公开(公告)日：2004-04-08
申请号：JP2002275522
申请日：2002-09-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIMURA YOSHIYUKI , OOKAJI HIROYUKI , FURUYA SEIJI
IPC分类号： G03G9/08 , G03G15/00 , G03G15/16 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To form excellent images by thoroughly removing toner remaining after transfer on a secondary image carrier of a simultaneous both-side image forming device. SOLUTION: A second cleaning member 35 which the secondary image carrier 30 has is provided with: a releasing agent cake body 61 prepared by solidifying a releasing agent 60; a brush roller (a coating application member) 62 for applying the releasing agent 60 to a coating application position Z on the carrier 30; and a cleaning member 63 for cleaning the toner remaining after transfer on the carrier 30. The releasing agent 60 is applied to the coating application position Z by chipping the surface of the cake body 61 by the brush roller 62 rotating around a revolving shaft 62A while pressing the tips of bristles 62B of the brush roller 62 to the cake body 61. Thereafter the toner remaining after transfer is removed by cleaning with the cleaning member 63 at a cleaning position Y. COPYRIGHT: (C)2004,JPO

84. 发明专利

JP2004109637A Simultaneous double-sided image forming apparatus 审中-公开
公开(公告)号：JP2004109637A
公开(公告)日：2004-04-08
申请号：JP2002273523
申请日：2002-09-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OOKAJI HIROYUKI , KIMURA YOSHIYUKI , FURUYA SEIJI
IPC分类号： G03G21/14 , G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive, simultaneous double-sided image forming apparatus which speedily forms images on both sides of a recording medium. SOLUTION: A first full-color image held on a primary image carrier 20 is transferred to a secondary image carrier 30 in a primary transfer position by a primary transfer means 25. Thereafter, a second full-color image is separately transferred to the primary image carrier 20. Then, the second full-color image is transferred in the primary transfer position by the primary transfer means 25 while the first full-color image is transferred in the secondary transfer position by the secondary transfer means 36. Thereby images are almost simultaneously formed on both sides of a recording medium. The cleaning member 65 of a secondary cleaning means 35 which removes transfer residual toner on the secondary image carrier 30 is freely brought into contact with or separated from the secondary image carrier 30 in a cleaning position Z. COPYRIGHT: (C)2004,JPO

85. 发明专利

JP2004109542A Simultaneous both-sided image forming apparatus 审中-公开
公开(公告)号：JP2004109542A
公开(公告)日：2004-04-08
申请号：JP2002272498
申请日：2002-09-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FURUYA SEIJI , TAKAHASHI MITSURU
IPC分类号： G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a simultaneous both-sided image forming apparatus which has good processing efficiency. SOLUTION: A simultaneous both-sided image forming printer equipped with a primary image carrying device E and a secondary image carrying device F has a primary transfer position Tr1 where a full-color image (first image) on the secondary image carrier 30 of the secondary image carrying device F is transferred to a recording medium P and a cleaning position Er where the blade (cleaning member) 35a of a secondary cleaning means (cleaning means) 35 comes into contact with the secondary image carrier 30. The distance L from the cleaning position Er to the primary transfer position Tr1 in a conveying direction (e) of the secondary image carrier 30 is made longer than the long side of a double-letter size. COPYRIGHT: (C)2004,JPO

86. 发明专利

JP2004109282A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2004109282A
公开(公告)日：2004-04-08
申请号：JP2002269478
申请日：2002-09-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FURUYA SEIJI , KOMATA YASUKUNI
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus equipped with a cleaning device which improves the cleanability without increasing the number of components.
SOLUTION: The image forming apparatus includes: an intermediate transfer belt 20; a cleaning blade 27 which cleans the intermediate transfer belt 20 in contact with the belt 20; a conductive holder 28 which supports the cleaning blade 27; a drive roller 21 disposed opposite the cleaning blade 17 with the intermediate transfer belt 20 between them; and a cleaning device 25 which has a power source for applying a bias with the same polarity as that of toner on the intermediate transfer belt 27 to the drive roller 21 and generates an electric field between the holder 28 and the drive roller 21, thereby cleaning the intermediate transfer belt 20. This weakens electrostatic attraction force between the intermediate transfer belt 20 and toner and improves the cleanability of the belt with the cleaning blade 27.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种配备有清洁装置的图像形成装置，其在不增加部件数量的情况下提高了可清洁性。图像形成装置包括：中间转印带20; 清洁与传送带20接触的中间转印带20的清洁刮板27; 支撑清洁刮板27的导电支架28; 与清洁刮板17相对设置的驱动辊21，其间具有中间转印带20; 以及清洁装置25，其具有用于将与中间转印带27上的调色剂极性相同的偏压施加到驱动辊21的电源，并在保持器28和驱动辊21之间产生电场，由此清洁中间转印带20.这削弱了中间转印带20和调色剂之间的静电吸引力，并提高了带有清洁刮板27的带的可清洁性。版权所有（C）2004，JPO

87. 发明专利

JP2013111919A Procedure informing apparatus and image forming apparatus 有权
标题翻译：程序通知装置和图像形成装置
公开(公告)号：JP2013111919A
公开(公告)日：2013-06-10
申请号：JP2011261987
申请日：2011-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKIYAMA MAMI , SAGAWA YASUHIRO , FURUYA SEIJI , IZUMIKAWA MANABU , ISHIBASHI MIKIO , HATTORI YOSHIO , OTA SO , TAKENAKA MAKOTO , MURAKAMI HIROAKI
IPC分类号： B41J29/42 , B41J29/46 , G03G21/00 , G03G21/16 , H04N1/00
CPC分类号： G06F3/12 , G03G15/502 , G03G15/70
摘要： PROBLEM TO BE SOLVED: To provide a procedure informing apparatus and an image forming apparatus capable of performing jam processing in a short time period.SOLUTION: The procedure informing apparatus includes: a residual medium detecting means 30 that detects presence/absence of a record medium left in a record medium passing portion in an image forming apparatus body 1; and an opening/closing detecting means 31 that detects an opening/closing state of an opening/closing element necessary for taking out the residual record medium from the image forming apparatus body. The procedure informing apparatus also includes: a storage means 32 that stores a reference table that defines a combination of the output of the residual medium detecting means 30 and the output of the opening/closing detecting means 31 together with operations subsequently needed for respective combinations in association with each other; an informing control means 33 that determines the combination of the outputs of the residual medium detecting means 30 and the opening/closing detecting means 31 correspondingly to the reference table of the storage means 32; and an informing means 34 that informs necessary operations in the combination as a result of referring to the combination of the outputs of the residual medium detecting means 30 and the opening/closing detecting means 31 to the reference table by the informing control means 33.
摘要翻译：解决的问题：提供能够在短时间内进行卡纸处理的程序通知装置和图像形成装置。过程通知装置包括：残留介质检测装置30，其检测图像形成装置主体1中记录介质通过部分中留下的记录介质的存在/不存在; 以及检测从图像形成装置主体取出残留记录介质所需的打开/关闭元件的打开/关闭状态的打开/关闭检测装置31。程序通知装置还包括：存储装置32，其存储限定了残留介质检测装置30的输出和打开/关闭检测装置31的输出的组合的参考表以及随后的各组合所需的操作相互联系通知控制装置33，其根据存储装置32的参考表确定残留介质检测装置30和打开/关闭检测装置31的输出的组合; 以及通知装置34，其通过由通知控制装置33参考残留介质检测装置30和打开/关闭检测装置31的输出到参考表的结合来通知组合中的必要操作。 P>版权所有（C）2013，JPO＆INPIT

88. 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

89. 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

90. 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

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