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51. 发明专利

JP2005300624A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2005300624A
公开(公告)日：2005-10-27
申请号：JP2004112667
申请日：2004-04-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YONEDA TAKUJI , AMAMIYA MASARU , TOMITA MASAMI , KAWASUMI MASANORI , TAWADA TAKAAKI , SHINTANI TAKASHI , OOJIYA ATSUYA , KOIKE TOSHIO , ARAI YUJI
IPC分类号： G03G9/08 , G03G5/147 , G03G15/02 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which leakage of toner from a cleaning blade is prevented to suppress occurrence of a filming phenomenon due to adhesion of transfer residual toner on a photoreceptor to the photoreceptor or to the photoreceptor and a charging roller, therefore high quality images are printed. SOLUTION: In the image forming apparatus comprising at least the photoreceptor 5; a charging device 14 for uniformly charging a surface of the photoreceptor 5 with AC bias voltage superposed on DC bias voltage; a developing device 10 for visualizing an image by supplying a toner having an average circularity of 0.95-1.0 to a latent image formed on the surface of the photoreceptor 5; and a cleaning device 15 with a cleaning blade 151 for removing the toner on the photoreceptor 5, the toner is one obtained by wet external addition of fine particles having an average particle diameter of 0.03-1 μm on surfaces of base particles and a surface friction coefficient of the photoreceptor 5 is 0.1-0.4. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，其中防止调色剂从清洁刮板泄漏，以抑制由于感光体上的转印残余调色剂粘附到感光体或感光体而导致的成膜现象的发生，以及充电辊，因此打印出高质量的图像。解决方案：在至少包括感光体5的图像形成装置中; 用于以叠加在直流偏置电压上的交流偏置电压对感光体5的表面进行均匀充电的充电装置14; 用于通过将平均圆形度为0.95-1.0的调色剂供应到形成在感光体5的表面上的潜像来使图像可视化的显影装置10; 以及具有用于去除感光体5上的调色剂的清洁刮板151的清洁装置15，调色剂是通过在基础颗粒的表面上湿平均粒径为0.03-1μm的细颗粒和表面摩擦感光体5的系数为0.1-0.4。版权所有（C）2006，JPO＆NCIPI

52. 发明专利

JP2005189523A Process cartridge, waste toner bottle, toner bottle and image forming apparatus 有权
标题翻译：工艺盒，废墨瓶，调色瓶和图像形成装置
公开(公告)号：JP2005189523A
公开(公告)日：2005-07-14
申请号：JP2003431091
申请日：2003-12-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ARAI YUJI , YANAGIDA MASAHITO , KUMAGAI NAOHIRO , SHINTANI TAKASHI , TAWADA TAKAAKI , AMAMIYA MASARU , KOIKE TOSHIO , YONEDA TAKUJI , TABUCHI TAKESHI , TAKAHASHI YUTAKA , MURAKAMI EISAKU , UCHITANI TAKESHI , TOMITA MASAMI , KAWASUMI MASANORI
IPC分类号： G03G15/08 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide a process cartridge preventing an eject port, ejecting waste toner from a process cartridge, from being opened by mistake. SOLUTION: The process cartridge 11 is provided with an image carrier 10 and at least a cleaning means 14 and can be detached from an image forming apparatus A, and has a waste toner pipe 18 provided with the discharge port 19, discharging the waste toner from the cleaning means 14 and a shutter member 21 provided inside the waste toner pipe 18. By having an engagement part 22 provided on the image forming apparatus body 3 side engaged with the shutter member 21 when attached to the image forming apparatus A, the shutter member 21 is moved to an opening position of the discharge port 19. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供防止弹出端口的处理盒，从处理盒中排出废调色剂不被错误地打开。解决方案：处理盒11设置有图像载体10和至少清洁装置14，并且可以从图像形成装置A分离，并且具有设置有排出口19的废调色剂管18，来自清洁装置14的废调色剂和设置在废调色剂管18内部的活门构件21.通过在附着到图像形成装置A上时，设置在与活门构件21接合的图像形成装置主体3侧上的接合部22，活门构件21移动到排出口19的打开位置。版权所有（C）2005，JPO＆NCIPI

53. 发明专利

JP2005091693A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005091693A
公开(公告)日：2005-04-07
申请号：JP2003324358
申请日：2003-09-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ARAI YUJI , YANAGIDA MASAHITO , KUMAGAI NAOHIRO , SHINTANI TAKASHI , TAWADA TAKAAKI , AMAMIYA MASARU , KOIKE TOSHIO , YONEDA TAKUJI , TABUCHI TAKESHI , TAKAHASHI YUTAKA , MURAKAMI EISAKU , UCHITANI TAKESHI , TOMITA MASAMI , KAWASUMI MASANORI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/02 , G03G15/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which uses a nearly spherical toner and thereby prevents an electrostatic charging member from being contaminated even if the toner remains on a photoreceptor without being cleaned in a cleaning process after transfer and even if the toner arriving at an electrostatic charging process exists. SOLUTION: When the image forming apparatus detects the adhesion of toner to an electrostatic charging roller 2a , a potential difference is disposed between the electrostatic charging roller 2a and the photoreceptor 1, by which the toner sticking go the electrostatic charging roller 2a is discharged to the photoreceptor 1. The image forming apparatus satisfies the relation A>B when the potential of the electrostatic charging roller 2a is defined as A, and the potential of the photoreceptor 1 as B at the time of discharging the positively electrostatically charged toner. The image forming apparatus satisfies the relation A COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供使用近似球形的调色剂的图像形成装置，从而即使调色剂在转印后的清洁处理中没有被清洁也保持静电充电部件被污染，并且即使存在进入静电充电过程的调色剂。解决方案：当图像形成装置检测到调色剂对静电充电辊2a的粘附时，在静电充电辊2a和感光体1之间设置电位差，通过该静电充电辊2a和感光体1，调色剂粘附到静电充电辊2a上放电到感光体1.当静电充电辊2a的电位定义为A时，图像形成装置满足关系A> B，并且在放电带正静电的调色剂时感光体1的电位为B。当静电充电辊2a的电位定义为A时，图像形成装置满足关系A

54. 发明专利

JP2004287404A Image forming device and process cartridge 有权
公开(公告)号：JP2004287404A
公开(公告)日：2004-10-14
申请号：JP2003432220
申请日：2003-12-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TSUDA KIYONORI , SANPEI ATSUSHI , SUDA TAKEO , HATORI SATOSHI , ARAI YUJI , ISHIKAWA TOMOJI , WATANABE NAOTO
IPC分类号： G03G21/18 , G03G15/08 , G03G21/16
摘要： PROBLEM TO BE SOLVED: To miniaturize an image forming device and a process cartridge provided in the same, by providing a toner supply port through which toner is supplied to a developer storage part, within a preset and prescribed width of a process cartridge side plate.
SOLUTION: In the image forming device, a process cartridge 6Y provided attachably to and detachably from a printer has side plates 61Y-1 and 61-Y2 supporting shafts of a photoreceptor, a developing sleeve, a toner carrying screw, etc. The image forming device is provided with a toner carrying device for supplying supply toner in a toner bottle 32Y to a developer storage part 53Y, and a toner supply port 62Y being in a position where a toner carrying pipe 43Y of the toner carrying device is connected to the process cartridge is provided within a prescribed width between side plates in the lengthwise direction of the process cartridge.
COPYRIGHT: (C)2005,JPO&NCIPI

55. 发明专利

JP2004220012A Powder transport apparatus and image forming apparatus 有权
公开(公告)号：JP2004220012A
公开(公告)日：2004-08-05
申请号：JP2003428881
申请日：2003-12-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TSUDA KIYONORI , HOSOKAWA HIROSHI , NARIMI SATOSHI , ARAI YUJI , TAKECHI RYUTA , KAWASUMI MASANORI , UMEMURA KAZUHIKO
IPC分类号： G03G15/08 , B65G11/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which can suppress trouble due to a blast flow of toner from a transport pipe to a developing unit without lowering the degree of freedom of layout of a toner bottle 32Y and the developing unit while solving problems due to transport of toner against a gravitational force.
SOLUTION: As the transport pipe 43Y connecting the toner bottle 32Y and the developing unit which is below it and not illustrated, a transport pipe is used which connects with the developing unit after extending downward from the bottle side toward the developing unit and then bending (C) so as to make a tilt angle to the horizontal smaller than that at sections before the bending (C).
COPYRIGHT: (C)2004,JPO&NCIPI

56. 发明专利

JP2004205797A Image forming apparatus 审中-公开
公开(公告)号：JP2004205797A
公开(公告)日：2004-07-22
申请号：JP2002374628
申请日：2002-12-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ARAI YUJI , NARIMI SATOSHI , HOSOKAWA HIROSHI , TSUDA KIYONORI , TAKECHI RYUTA , KAWASUMI MASANORI , UMEMURA KAZUHIKO
IPC分类号： G03G21/00 , G03G15/01 , G03G15/08 , G03G21/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of avoiding troubles caused by an abnormal setting of a toner bottle, and also, capable of avoiding troubles caused when a correct kind of toner bottle is not set. SOLUTION: A toner bottle equipped with a bottle control IC chip 39K with electronic information stored therein is put in use as a toner bottle 32K, and also, whether or not the toner bottle 32K is correctly set is detected based on the result whether or not it has been made communicable with the bottle control IC chip 39K of the toner bottle 32K set on a bottle mount part 31K. COPYRIGHT: (C)2004,JPO&NCIPI

57. 发明专利

JP2004109631A Image forming apparatus and processing cartridge 审中-公开
公开(公告)号：JP2004109631A
公开(公告)日：2004-04-08
申请号：JP2002273464
申请日：2002-09-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWASUMI MASANORI , UMEMURA KAZUHIKO , NARIMI SATOSHI , HOSOKAWA HIROSHI , TAKECHI RYUTA , TSUDA KIYONORI , ARAI YUJI
IPC分类号： G03G9/08 , G03G15/08 , G03G15/30 , G03G21/00 , G03G21/18
CPC分类号： G03G21/0035 , G03G21/1814 , G03G2215/0132 , G03G2221/1648 , G03G2221/183
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and a process cartridge which prevents toner scattered by diffusion by means of a sticking material diffusing means from sticking to arranged objects around electrifying members etc. SOLUTION: The space between the region surrounded by a casing 47 where the diffused remaining toner after transfer exists and the surface of photoreceptor drum and an electrifying roller is shielded by the casing 47 and Mylar 46 in such a manner that the remaining toner after transfer which is diffused by a brush roller 41 for diffusing the remaining toner after transfer stuck on the photoreceptor drum does not stick to the electrifying roller 3a arranged around the photoreceptor drum. Thereby, even when the toner is scattered by the brush roller, the toner is prevented from sticking to the electrifying roller. COPYRIGHT: (C)2004,JPO

58. 发明专利

JP2017090632A 定着装置及び画像形成装置审中-公开
公开(公告)号：JP2017090632A
公开(公告)日：2017-05-25
申请号：JP2015219564
申请日：2015-11-09
申请人：株式会社リコー , Ricoh Co Ltd
发明人： ARAI YUJI , GOTO SO , SESHITA TAKUYA , IMADA TAKAHIRO
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017 , G03G2215/2035
摘要：【課題】無端状の薄いベルトやフィルムを定着部材として用いる場合の組み立て性を向上させつつ、組み立て時に定着部材の破損が起こり難くする。【解決手段】回転可能な定着部材と、前記定着部材の長手方向両端をそれぞれ保持する保持部材と、前記定着部材の内周側に配され、前記定着部材を介して外側からかかる圧力を受けて定着ニップ部を形成するニップ形成部材と、前記ニップ形成部材にかかる圧力に対して前記ニップ形成部材を支持するステー部材と、前記保持部材を固定し、前記ステー部材の端部を外側に突出させて前記ステー部材の位置決めを行う位置決め部材とを少なくとも組み付けてユニット化した定着部材ユニットを有する定着装置において、前記位置決め部材のスラスト方向の動きを前記定着部材の内側に入り込む保持部材の長さ未満の移動量に制限する構成とした。【選択図】図6

59. 发明专利

JP2014174440A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014174440A
公开(公告)日：2014-09-22
申请号：JP2013048951
申请日：2013-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ARAI YUJI , SEKI TAKAYUKI , MINBU RYUICHI , YAMAGUCHI YOSHINORI , TAMAKI TOSHITARO , SHIMOKAWA TOSHIHIKO , IKEBUCHI YUTAKA , YOSHINAGA HIROSHI , SAITO KAZUYA , YUASA SHUTARO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device with a simple configuration capable of achieving energy saving and a reduction in first print time, and suppressing an increase in temperature at end parts without reducing productivity.SOLUTION: A fixing device includes a fixing rotating body, a heat source that heats the fixing rotating body, a non-rotatable nip forming member that is brought into contact with the fixing rotating body inside the fixing rotating body, a pressure rotating body that forms a nip with the nip forming member with the fixing rotating body therebetween, and a support member that receives a pressure applied to the nip forming member. The fixing device further includes a shield member that can be moved between an inner surface of the fixing rotating body and the heat source, and the shield member is constantly in contact with the support member.
摘要翻译：要解决的问题：提供具有能够实现节能并且缩短第一打印时间的简单配置的定影装置，并且在不降低生产率的情况下抑制端部温度的升高。解决方案：一种定影装置，包括固定旋转体，加热固定旋转体的热源，与固定旋转体内的固定旋转体接触的不可旋转的夹持形成部件，与固定旋转体的固定旋转体形成辊隙的压力旋转体旋转体，以及承受施加到辊隙形成构件的压力的支撑构件。定影装置还包括能够在固定旋转体的内表面和热源之间移动的屏蔽构件，并且屏蔽构件不断地与支撑构件接触。

60. 发明专利

JP2014085430A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014085430A
公开(公告)日：2014-05-12
申请号：JP2012232701
申请日：2012-10-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , SEKI TAKAYUKI , ARAI YUJI , YAMAGUCHI YOSHINORI , TAMAKI TOSHITARO , IKEBUCHI YUTAKA
IPC分类号： G03G15/20 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To prevent a variation in voltage at the start of energization to fixing member heating means and flicker of a fluorescent light due to the variation, and minimize an influence to fixing temperature control.SOLUTION: A fixing device uses soft start control to gradually heat heating means at the start of energization to the heating means for heating a fixing member, and provides energization to the heating means so as to change a method of the soft start control according to a non-energization time from the completion of the previous energization to the start of the subsequent energization to the heating means and compensate the increment and decrement of effective power caused by the change in the control method.
摘要翻译：要解决的问题：为了防止由于变化而导致定影部件加热装置通电开始时的电压变化和荧光灯闪烁，并且对定影温度控制的影响最小化。解决方案：定影装置使用软启动控制在通电开始时将加热装置逐渐加热到用于加热定影构件的加热装置，并且向加热装置提供通电，以便根据从非完全的完成时的非通电时间改变软启动控制的方法先前通电到开始对加热装置的随后的通电，并补偿由控制方法的变化引起的有效功率的增减。

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