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1. 发明专利

JP2007308269A Continuous paper printer 审中-公开
标题翻译：连续纸打印机
公开(公告)号：JP2007308269A
公开(公告)日：2007-11-29
申请号：JP2006139768
申请日：2006-05-19
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： SATO MITSURU , TERAKADO TAKESHI , IWANAGA HIDEKI
IPC分类号： B65H23/188 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a continuous paper printer obtaining excellent print quality causing no blurring at the start of printing without vibration caused by the impact of paper by guiding paper without a load at the start of printing. SOLUTION: The continuous paper printer comprises a transfer apparatus 3 for transferring a toner image formed on a photoconductor 1, to paper; an upstream guide member 25 and a downstream guide member 26 arranged upstream and downstream in a paper conveying direction with respect to the transfer apparatus and provided to approach or retreat from the photoconductor surface; and a buffer means arranged further upstream of the upstream guide member to absorb sagging of paper caused by the approaching and retreating operation of the guide member. The buffer means is composed of an eccentric roller 6 comprising an independent drive source and controlled in the angle of rotation according to the amount of sagging of paper caused by the approaching and retreating operation of the guide member. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供连续的打印质量，在打印开始时获得优异的打印质量，在打印开始时不会由于纸张的冲击而引起振动，而不会在打印开始时引导纸张而没有负载。解决方案：连续造纸机包括用于将形成在感光体1上的调色剂图像转印到纸上的转印装置3; 上游引导构件25和下游引导构件26，其布置在相对于传送装置的纸张传送方向上游和下游，并且设置成从光电导体表面接近或退避; 以及缓冲装置，其布置在所述上游引导构件的上游，以吸收由所述引导构件的接近和撤回操作引起的纸张的下垂。缓冲装置由包括独立驱动源的偏心辊6构成，并且根据导向构件的接近和后退操作引起的纸张流动量控制在旋转角度。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2005247532A Paper folding device 审中-公开
标题翻译：纸张折叠装置
公开(公告)号：JP2005247532A
公开(公告)日：2005-09-15
申请号：JP2004062353
申请日：2004-03-05
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： NUMATA HIRONORI , ONODERA TAKESHI , TERAKADO TAKESHI
IPC分类号： B65H45/101
摘要： PROBLEM TO BE SOLVED: To provide a paper folding device capable of preventing jamming of the paper and preventing toner deposition of a superposed printing surface.
SOLUTION: In the paper folding device, continuous printing papers with folding perforation are folded alternately at a front surface and a back surface and the device has a table loaded with the folded papers and a sensor for detecting an upper surface of the papers loaded on the table. The table descends by a constant amount by detection of the sensor. After the table descends by a constant amount by the detection of the sensor, amplitude operation of the table is vertically performed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够防止纸张卡住并防止重叠印刷表面的调色剂沉积的纸张折叠装置。解决方案：在折纸装置中，具有折叠穿孔的连续打印纸在前表面和后表面交替折叠，并且装置具有装载折叠纸的桌子和用于检测纸张的上表面的传感器装在桌子上通过检测传感器，该表下降一定的量。在通过传感器的检测使表下降一定量之后，垂直执行工作台的振幅操作。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005231829A Web conveyance device 审中-公开
标题翻译： WEB传输设备
公开(公告)号：JP2005231829A
公开(公告)日：2005-09-02
申请号：JP2004044251
申请日：2004-02-20
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： WATANABE TAKESHI , TERAKADO TAKESHI , IWANAGA HIDEKI
IPC分类号： B65H23/188
摘要： PROBLEM TO BE SOLVED: To provide a drive roller unit in a web conveyance mechanism of a printing device capable of improving web holding force by a driving roller and a pressing roller while avoiding danger that a web is damaged and preventing occurrence of slip between the driving roller and the web when starting conveyance.
SOLUTION: A surface of the driving roller is covered with an elastic material having hardness of 60° to 90° to increase contact area and coefficient of friction between the driving roller and the web in order to improve web holding force by the driving roller and the pressing roller so that occurrence of slip between the driving roller and the web can be suppressed when starting web conveyance. By realizing the same hardness of the elastic material covering the surface of the driving roller as hardness of an elastic material of a surface layer of the pressing roller, deformation amount of surfaces of the driving roller and the pressing roller in the vicinity of a contact point with the web is free from unevenness, and occurrence of dent of the roller on the web is prevented.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够通过驱动辊和加压辊改善卷筒纸保持力的打印装置的卷筒纸输送机构中的驱动辊单元，同时避免纸幅损坏的危险并防止滑动的发生在开始运送时在驱动辊和卷筒纸之间。解决方案：驱动辊的表面被硬度为60°至90°的弹性材料覆盖，以增加驱动辊和幅材之间的接触面积和摩擦系数，以便通过驱动来改善幅材的保持力辊和加压辊，从而当起动纸幅输送时可以抑制在驱动辊和幅材之间发生滑动。通过实现覆盖驱动辊表面的弹性材料的相同硬度，作为加压辊的表面层的弹性材料的硬度，驱动辊和加压辊在接触点附近的表面的变形量纸幅没有凹凸，防止了卷筒纸上的凹痕的发生。版权所有（C）2005，JPO＆NCIPI

4. 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

5. 发明专利

JP2007044875A Printer 审中-公开
标题翻译：打印机
公开(公告)号：JP2007044875A
公开(公告)日：2007-02-22
申请号：JP2005228311
申请日：2005-08-05
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： IWANAGA HIDEKI , TERAKADO TAKESHI , SATO MITSURU , KIKUSHIMA YUKI
IPC分类号： B41J15/16
摘要： PROBLEM TO BE SOLVED: To provide a printer equipped with a web conveyance device capable of stably performing conveyance of a web without lowering the quality of printing.
SOLUTION: The printer is equipped with an accumulation part which is provided at the upstream side in a web conveyance direction to a transfer printing part to apply slack to the web, a slack amount detecting means which detects an amount of the slack of the web at the accumulation part, a web buffer means which carries the web into the accumulation part, and a web tension applying mechanism which detects a tensile force of the web and controls the tensile force of the web during conveyance by changing a frictional force generated by changing a pressing force to the web. The web buffer means controls an amount of conveyance of the web on the basis of an output of the slack amount detecting means by a conveyance speed difference of the web. Moreover, the web buffer means is equipped with a weight changing mechanism which has a sheet-like guide member inside of the web and changes a weight of a tip of the sheet-like guide member.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种配备有能够稳定地进行纸幅输送而不降低打印质量的纸幅输送装置的打印机。解决方案：打印机配备有向纸张输送方向的上游侧设置到转印印刷部分以向纸幅施加松弛的堆积部分;松弛量检测装置，其检测纸张的松弛量在堆积部分的腹板，将腹板带入累积部分的腹板缓冲装置，以及卷筒纸张力施加机构，其检测腹板的张力并通过改变产生的摩擦力来控制腹板在运送过程中的张力通过改变对网的按压力。纸幅缓冲装置通过纸幅的输送速度差来根据松弛量检测装置的输出来控制纸幅的输送量。此外，网状缓冲装置配备有在纸幅内部具有片状引导构件的重量变更机构，并且改变片状引导构件的末端的重量。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2005077650A Printer 审中-公开
标题翻译：打印机
公开(公告)号：JP2005077650A
公开(公告)日：2005-03-24
申请号：JP2003307035
申请日：2003-08-29
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 , TERAKADO TAKESHI , IWANAGA HIDEKI
IPC分类号： G03G21/14 , B65H20/24 , G03G15/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To improve printing quality by reducing transfer blur caused by the variation of web feeding speed by reducing an impact made when a movable buffer comes into contact with a web immediately after starting feeding. SOLUTION: The printer has a transfer means for recording and forming a toner image on the web, a fixing means for fixing the toner image transferred to the web on the web, a feeding means for feeding the web from the transfer means to the fixing means, and a buffer means for absorbing the variation of web length from the transfer means to the fixing means caused by a difference between the web feeding speed of the transfer means and that of the fixing means. The buffer means is constituted of a movable buffer whose position is changed in accordance with the web length from the transfer means to the fixing means, a sensor for detecting the position of the movable buffer, and a driving means controlling the web feeding speed of the fixing means or the transfer means in accordance with the detection signal of the sensor, and has a driving means for driving the movable buffer. Then, the position of the movable buffer is controlled regardless of the web length from the transfer means to the fixing means in a fixed time immediately after starting the feeding of the web. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过减少当可移动缓冲器在开始进给之后立即与纸幅接触时所产生的冲击，通过减少纸幅进给速度的变化而导致的转印模糊度来提高打印质量。解决方案：打印机具有用于在幅材上记录和形成调色剂图像的转印装置，用于将转印到幅材上的调色剂图像定影在纸幅上的定影装置，用于将纸幅从转印装置馈送到固定装置和缓冲装置，用于吸收从传送装置到定影装置的卷筒纸长度的变化，这是由转印装置的卷筒纸进给速度与固定装置的卷筒纸进给速度之间的差异引起的。缓冲装置由可移动缓冲器构成，其位置根据从传送装置到定影装置的幅材长度而改变，用于检测可移动缓冲器的位置的传感器和控制可移动缓冲器的卷筒纸进给速度的驱动装置固定装置或传送装置，并且具有用于驱动可移动缓冲器的驱动装置。然后，在开始送纸之后，固定时间内可以控制可移动缓冲器的位置，而不管从传送装置到定影装置的纸幅长度如何。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2007047195A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2007047195A
公开(公告)日：2007-02-22
申请号：JP2005228312
申请日：2005-08-05
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： SATO MITSURU , TERAKADO TAKESHI , IWANAGA HIDEKI , KIKUSHIMA YUKI
IPC分类号： G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus adaptable to continuous paper which can achieve excellent transfer free from an image defect even in transfer to rough surface paper whose surface is largely roughened and also transfer to the second surface of a web which is wrinkled by heat when fixing a toner image on its first surface even when it is the web whose surface is comparatively flat. SOLUTION: The image forming apparatus which is provided with a transfer means opposed to a photoreceptor drum so as to electrostatically transfer a toner image formed on the surface of the photoreceptor drum to the web conveyed to a transfer area between the photoreceptor drum and the transfer means is provided with a guide member at a position where tightness between the web and the photoreceptor drum is enhanced at the entrance of the transfer area, and then provided with a transfer assist roller positioned on a downstream side in the conveyance of the web with reference to the guide member, pressing the web on the photoreceptor in space between the transfer means and itself and also rotating following the traveling of the web. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种适用于连续纸的图像形成装置，即使在表面粗糙化的粗糙表面纸上也能够获得优异的图像转印转印，并且也转印到幅材的第二表面即使当表面相对平坦的幅材时，即使在将调色剂图像定影在其第一表面上时，其也被热量折皱。解决方案：图像形成装置设置有与感光鼓相对的转印装置，以将形成在感光鼓表面上的调色剂图像静电转印到传送到感光鼓和感光鼓之间的转印区域传送装置在传送区域的入口处在幅材和感光鼓之间的紧密度增强的位置处设置有引导构件，然后设置有传送辅助辊，位于传送网的下游侧参考引导构件，将幅材压在转印装置与其本身之间的空间中的感光体上，并且随着幅材的行进也旋转。版权所有（C）2007，JPO＆INPIT

8. 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

9. 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

10. 发明专利

JP2008044750A Web conveyance device 审中-公开
标题翻译： WEB传输设备
公开(公告)号：JP2008044750A
公开(公告)日：2008-02-28
申请号：JP2006223243
申请日：2006-08-18
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： KIKUSHIMA YUKI , IWANAGA HIDEKI , TERAKADO TAKESHI
IPC分类号： B65H23/038 , B65H7/02 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a printer preventing meandering of a web in a first conveyance mechanism, not causing errors in meandering correction even when the web is suddenly changed, and stably conveying the web.
SOLUTION: This web conveyance device stably conveys the web by arranging a meandering detection sensor in a web conveying part, calculating results detected by the web meandering detection sensors of the conveying part and a fixing part, and correcting meandering by a pressure roller in the fixing part.
COPYRIGHT: (C)2008,JPO&INPIT

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