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1. 发明专利

JP2008216555A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008216555A
公开(公告)日：2008-09-18
申请号：JP2007052772
申请日：2007-03-02
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： KAGAMI TAKASHI , TERAKADO TAKESHI , IWANAGA HIDEKI , KUWABARA AKITOMO , KIKUSHIMA YUKI
IPC分类号： G03G15/16 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which does not cause an image defect by making pressing force to a recording medium equal. SOLUTION: A pressing means for pressing the recording medium against the surface of a photoreceptor includes a first pressing member 22a and a second pressing member 22b provided alongside the photoreceptor and pressing the recording medium against the photoreceptor side by turning, and a slider 24 engaged with a part of the pressing members 22a and 22b and moving along in the arranging direction of the pressing members 22a and 22b. An angle difference is provided in a turning operation direction in a turning standby state between the first pressing member 22a and the second pressing member 22b. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过对记录介质施加压力而不引起图像缺陷的图像形成装置。解决方案：用于将记录介质压靠在感光体表面上的按压装置包括：一个第一按压部件22a和一个设置在感光体旁边的第二按压部件22b，并通过转动将记录介质按压感光体侧， 24与按压构件22a和22b的一部分接合并沿着按压构件22a和22b的排列方向移动。在第一按压部件22a和第二按压部件22b之间的转弯待机状态下的转动操作方向上设置有角度差。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008046145A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008046145A
公开(公告)日：2008-02-28
申请号：JP2006218549
申请日：2006-08-10
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： TAKAYAMA AKITA , TERAKADO TAKESHI , KUWABARA AKITOMO , IWANAGA HIDEKI , KIKUSHIMA YUKI
IPC分类号： G03G15/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of correcting the ruggedness of a web by pressing the web against a photoreceptor drum in a double-sided printing and preventing toner printed on the surface of the web from being peeled off in a rear surface printing.
SOLUTION: A transfer assist blade 48 is operated in the position where a low friction part 48a at its leading end presses the continuous web 14 against the photoreceptor drum 12 during printing. Since the continuous web 14 is pressed against the periphery of the photoreceptor drum 12 during its passage through a nip area 60, the ruggedness of its surface is corrected. This ensures satisfactory transfer even with the web 14 subjected to the rough surface of paper quality and thermal deformation during fixing. In addition, since the low friction part 48a is curved in a predetermined curvature radius, friction caused when the low friction part 48 slides in contact with the continuous web 14 is decreased. Thus, it is hardly cause to be deviated by the transfer assist blade 48 even on the printed surface of the continuous web 14, and ensures satisfactory image quality in transfer.
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，其能够通过在双面打印中将纸幅压靠在感光鼓上来校正幅材的粗糙度，并且防止印刷在纸幅表面上的调色剂被剥离在后表面印刷。解决方案：传送辅助刀片48在其前端的低摩擦部分48a在打印期间将连续卷材14压靠在感光鼓12上的位置操作。由于连续纤维网14在其通过夹持区域60期间被压靠在感光鼓12的周边上，因此校正其表面的粗糙度。这样即使在卷筒纸14受到纸质量的粗糙表面和固定期间的热变形的情况下也能确保令人满意的转印。此外，由于低摩擦部48a以预定的曲率半径弯曲，所以当低摩擦部48滑动与连续卷材14接触时产生的摩擦减小。因此，即使在连续卷筒纸14的印刷面上也难以被传送辅助刮板48偏离，并且确保转印时的满意的图像质量。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008026826A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008026826A
公开(公告)日：2008-02-07
申请号：JP2006202457
申请日：2006-07-25
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： TAKAYAMA AKITA , UMEDA TAKAO , TERAKADO TAKESHI , IWANAGA HIDEKI , KUWABARA AKITOMO
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that can efficiently transfer a toner image, which is formed on an outer circumference of a photoreceptor, even if there are irregularities on a surface of a printing medium.
SOLUTION: The image forming apparatus 10 transfers the toner image formed on a photosensitive drum 101 on the surface (the surface to be transferred where the toner image is transferred) of a continuous web 107 by an image printer 130. A corona transfer unit 103 that is negatively charged is stored in the interior of a web guide 106. The web guide 106 has an upper stream side guide 106a and a downstream side guide 106b, which are oppositely formed on the outer circumference of the photosensitive drum 101, and a transfer region 20 of the continuous web 107 is formed between the upper stream and downstream side guides 106a, 106b and the outer circumference of the photosensitive drum 101. At the lower part of the web guide 106 (the upper stream side in the carrying direction X), a pressure-applying means for pressing the printing medium to the printing medium guide is arranged in an entry path where the printing medium enters in the transfer region between the printing medium guide and the photoreceptor, oppositely to the upper stream side guide 106a of the web guide 106. Consequently, the printing medium can be carried while being closely contacted to the printing medium guide, and for example, a presser 40 is included as the pressure-applying means for applying a straightening pressure to the continuous web 107 from the photosensitive drum 101 side.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在打印介质的表面上存在凹凸，也能够提供能够有效地转印形成在感光体的外周上的调色剂图像的图像形成装置。图像形成装置10通过图像打印机130将形成在感光鼓101上的调色剂图像转印到连续幅材107的表面（待转印的调色剂图像的表面）上。电晕转印带负电单元103存储在卷筒纸引导件106的内部中。卷筒纸引导件106具有相对地形成在感光鼓101的外圆周上的上流侧引导件106a和下游侧引导件106b，以及在上游和下游侧引导件106a，106b和感光鼓101的外周之间形成有连续幅材107的转印区域20.在幅材引导件106的下部（输送方向上游侧） X），将打印介质按压到打印介质引导件的压力施加装置设置在打印介质进入打印介质引导件和感光体与纸幅引导件106的上游侧引导件106a相对。因此，打印介质可以在与打印介质引导件紧密接触的同时被携带，并且例如包括压脚40作为加压装置用于从感光鼓101侧向连续幅材107施加矫直压力。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007033531A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2007033531A
公开(公告)日：2007-02-08
申请号：JP2005212799
申请日：2005-07-22
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： TAKAYAMA AKITA , HIROSE YOJI , TERAKADO TAKESHI , IWANAGA HIDEKI , KUWABARA AKITOMO
IPC分类号： G03G15/02 , H01T19/04
摘要： PROBLEM TO BE SOLVED: To provide a charger which can charge a photoreceptor surface to a target potential in a short period of time and has excellent charging efficiency, and has excellent charging performance to make the quality of an image high and stable. SOLUTION: At an opening part opposed to the photoreceptor 1 of the charger 2a, a grid 4a is arranged in an area as the downstream side of an image printing process and arrangement constitution is employed that satisfies Dd-Dg≥Du, where Du is the distance between a discharge electrode 3 arranged on the upstream side of the image printing process and the photoreceptor 1, Dd is the distance between a discharge electrode 3 arranged in an area on the downstream side of the image printing process, and Dg is the distance between the grid 4a and photoreceptor 1. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在短时间内将感光体表面充电到目标电位并且具有优异的充电效率的充电器，并且具有优异的充电性能以使图像的质量高且稳定。解决方案：在与充电器2a的感光体1相对的开口部分，栅格4a布置在作为图像印刷处理的下游侧的区域中，并且采用满足Dd-Dg≥Du的布置结构，其中 Du是布置在图像打印处理的上游侧的放电电极3与感光体1之间的距离，Dd是布置在图像打印处理的下游侧的区域中的放电电极3之间的距离，Dg是栅格4a和感光体1之间的距离。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005196051A Oven-type fixing apparatus 审中-公开
标题翻译：烤箱型固定装置
公开(公告)号：JP2005196051A
公开(公告)日：2005-07-21
申请号：JP2004004284
申请日：2004-01-09
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： KUWABARA AKITOMO , NAKAJIMA ISAO , SAWAHATA AKIRA , YAMAZAKI AKIHIKO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a both-side simultaneous fixing apparatus of a non-contact oven type, achieving prevention of damages by burning of a web at abnormalities, such as power cut off.
SOLUTION: A printing apparatus, such as a printer, is provided with a web-carrying means carrying the continuous web, an image recording means with a toner carrier and transferring a toner image formed on the toner carrier surface to one side or both sides of the web, a fixing apparatus for fixing the toner image transferred on the web and a heating plate with a heating source installed facing both sides of the web without contact. The coming into proximity and separation of the heating plate and the web in an action, in a heating plate opened position fixing the toner image and in a heating plate closed position, at non-printing time, by a parallel movement in the vertical direction of the carried direction of the web and an action of having the heating surfaces of each of at least two adjacent heating plates, rotated by approximately 90 to 180 degrees in the direction of facing the carried direction of the web.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种非接触式烤箱型的双面同时定影装置，能够防止由断电造成的异常情况下的纤维网的燃烧造成的损坏。解决方案：诸如打印机的打印设备设置有承载连续卷材的卷材承载装置，具有调色剂载体的图像记录装置，并将形成在调色剂载体表面上的调色剂图像转印到一面纸幅的两侧，用于固定转印在纸幅上的调色剂图像的定影装置和加热板，加热板安装成与纸幅的两侧无接触。在加热板打开位置和加热板关闭位置的加热板打开位置中，通过在垂直方向上的平行移动，在非打印时间内接近和分离加热板和卷筒纸所述幅材的传送方向和使至少两个相邻加热板中的每一个的加热表面在面向所述幅材的传送方向的方向上旋转约90至180度的动作。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2009015065A Transfer device, transfer method and image forming apparatus 有权
标题翻译：传送装置，传送方法和图像形成装置
公开(公告)号：JP2009015065A
公开(公告)日：2009-01-22
申请号：JP2007177513
申请日：2007-07-05
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： MABUCHI HIROYUKI , KUWABARA AKITOMO
IPC分类号： G03G15/16 , G03G15/00
CPC分类号： G03G15/1675 , G03G2215/1609
摘要： PROBLEM TO BE SOLVED: To provide a transfer device 6 capable of performing transfer free from deterioration of image quality by appropriately measuring a charge supply amount from a transfer member 9 to a medium to be transferred 16 and supplying charge suitable for the transfer of a toner image to any medium to be transferred 16.
SOLUTION: The transfer device 6 which transfers the toner image from a toner image carrier to a body to be transferred in an electrophotographic image forming apparatus is equipped with: the transfer member 9 which electrifies the body to be transferred 16; an electrifying device 10 which electrifies the surface of the transfer member 9; and potential sensors 11a and 11b which measure the potential of areas before and behind a transfer nip part of the transfer member 9.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过适当地测量从转印构件9到待转印介质16的电荷供应量并且适合于转印的电荷而提供能够进行没有图像质量劣化的转印装置6 将调色剂图像转印到要转印的任何介质16.解决方案：将调色剂图像从调色剂图像载体转印到要在电子照相成像设备中转印的主体的转印装置6配备有：转印部件 9，对身体进行通电16; 使传递构件9的表面通电的带电装置10; 以及测量转印部件9的转印夹持部分之前和之后区域的电位的电位传感器11a和11b。（C）2009，JPO＆INPIT

7. 发明专利

JP2008203309A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008203309A
公开(公告)日：2008-09-04
申请号：JP2007036049
申请日：2007-02-16
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： OMURA YUJI , KUWABARA AKITOMO
IPC分类号： G03G15/00 , B41J11/30
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus with printing quality improved by applying necessary tension of an image forming part in accordance with a web. SOLUTION: A first conveying means is a pair of web conveying tractors equipped with pin members which can be engaged in feed holes provided at both ends of the web, and a second conveying means is a web suction conveying belt provided to be opposed to the surface on an opposite side to the image forming surface of the web. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过根据卷筒纸施加图像形成部件的必要张力而提高印刷质量的图像形成装置。解决方案：第一传送装置是一对卷筒纸传送拖拉机，其具有销部件，该销部件可以啮合在卷筒纸的两端设置的供给孔中，第二传送装置是设置成相对的卷筒抽吸传送带到与幅材的图像形成表面相对的表面上。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006240841A Paper conveying device 审中-公开
标题翻译：纸输送装置
公开(公告)号：JP2006240841A
公开(公告)日：2006-09-14
申请号：JP2005060175
申请日：2005-03-04
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： TOMITA SHINYA , KUWABARA AKITOMO , SASAKI YOSHIKUNI , SAWAHATA AKIRA
IPC分类号： B65H5/06 , B65H7/06 , B65H20/02 , B65H23/038 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To carry out good paper conveyance by making a sub roll contact a main roll in a suitable relation for generating a suitable meandering correction amount matching various kinds of paper and suppressing accumulation of the meandering amount even during continuous printing with intermittence of a short length.
SOLUTION: The paper conveying device for a printing device has a main roll 101 for driving and a sub roll 102 which is driven to convey a paper sheet 100, and a position detecting means 200 for detecting an angle of the sub roll 102 with respect to the main roll 101. The contacting angle of the sub roll 102 to the main roll 101 is controlled according to the width of the paper sheet 100 to be printed on.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过使副辊以适当的关系接触主辊来进行良好的纸张输送，以便即使在连续打印期间也产生匹配各种纸张的合适的曲折校正量并抑制蜿蜒量的累积间歇性很短。解决方案：用于打印装置的纸张传送装置具有用于驱动的主辊101和被驱动以传送纸张100的副辊102以及用于检测副卷102的角度的位置检测装置200 相对于主辊101。根据要打印的纸张100的宽度来控制副辊102与主辊101的接触角。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2008257225A Image forming apparatus and tandem image forming apparatus using same 有权
标题翻译：图像形成装置和使用其的条形图像形成装置
公开(公告)号：JP2008257225A
公开(公告)日：2008-10-23
申请号：JP2008059142
申请日：2008-03-10
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： KUWABARA AKITOMO , ONOSE TSUKASA , SAWAHATA AKIRA , OTOME YUKIO , YAMAZAKI AKIHIKO , MABUCHI HIROYUKI
IPC分类号： G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that forms a high quality image. SOLUTION: The apparatus includes: a rotary drive means for driving a transfer member in the same direction as a carrying direction of a medium to be recorded; a contact separation means for abutting the transfer member with an image carrier during printing, and for separating the transfer member from the image carrier when not printing, through the medium to be recorded; and a drive transmission shutoff means for transmitting a rotary driving force from the rotary drive means to the transfer member when starting printing, and for shutting off the rotary driving force at the point when the rotation speed of the transfer member is stabled. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供形成高质量图像的图像形成装置。解决方案：该装置包括：旋转驱动装置，用于沿与待记录介质的传送方向相同的方向驱动传送部件; 接触分离装置，用于在打印期间将转印部件与图像载体邻接，并且用于当不打印时通过待记录的介质将转印部件与图像载体分离; 以及驱动传递切断装置，用于在开始打印时将来自旋转驱动装置的旋转驱动力传递到传送部件，并且用于在转印部件的旋转速度稳定时切断旋转驱动力。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2007199278A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2007199278A
公开(公告)日：2007-08-09
申请号：JP2006016457
申请日：2006-01-25
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： KUWABARA AKITOMO , TERAKADO TAKESHI , IWANAGA HIDEKI , TAKAYAMA AKITA
IPC分类号： G03G15/16
CPC分类号： G03G15/657
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of inexpensively forming images of good quality even on a thermally deformed web and various webs differing in width without any image defect.
SOLUTION: The image forming apparatus includes a transfer means of transferring a toner image formed on a photoreceptor surface to a recording medium, a conveying means for conveying the recording medium to between the photoreceptor and transfer means and conveying a recording medium having passed through the transfer means to a following stage, guide means provided upstream and downstream of the transfer means in the conveying direction of the recording medium and guiding the photoreceptor surface in contact or apart, and a pressing means for pressing the recording medium against the photoreceptor. Further, the image forming apparatus includes driving means for operating the pressing means and guide means individually.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种即使在热变形幅材上也能够廉价地形成良好质量的图像的图像形成装置，并且宽度不同的各种幅面没有任何图像缺陷。解决方案：图像形成装置包括将形成在感光体表面上的调色剂图像转印到记录介质的传送装置，用于将记录介质传送到感光体和转印装置之间并传送已经通过的记录介质的传送装置通过传送装置到后续阶段，在记录介质的输送方向上设置在传送装置的上游和下游并引导接触或分开的感光体表面的引导装置和用于将记录介质压靠在感光体上的按压装置。此外，图像形成装置包括用于分别操作按压装置和引导装置的驱动装置。版权所有（C）2007，JPO＆INPIT

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