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1. 发明专利

JP2006337555A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006337555A
公开(公告)日：2006-12-14
申请号：JP2005160014
申请日：2005-05-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NINOMIYA HIROMICHI , MIZUISHI HARUJI
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that is space-saving and capable of maintaining high image quality over a long period of time, by providing a cleaning means on the backside of a transfer belt so that a detection means can accurately detect image density and displacement.
SOLUTION: The image forming apparatus is provided with a transfer conveyance means which carries a transfer paper 100 on a transfer belt 60 endlessly stretched over a driving roller 61 and a plurality of driven rollers 62-66, conveys it to a transfer area, and sequentially transfers toner images formed on a plurality of photoreceptor drums to the transfer paper 100 in the transfer area; a detection means detecting the image density and the displacement from the image pattern transferred to a recording material; and the cleaning means for cleaning the front side of the driven roller 62 sandwiching the transfer belt 60 at a position facing the detection means and the backside of the transfer belt 60, on the side brought into contact with the driven roller 63. The cleaning means is disposed on the backside of the transfer belt 60.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供节省空间且能够长时间保持高图像质量的图像形成装置，通过在转印带的背面设置清洁装置，使得检测装置可以准确检测图像的密度和位移。解决方案：图像形成装置设置有转印输送装置，该转印输送装置在转印带60上承载转印纸100，该转印带100在驱动辊61和多个从动辊62-66上不断地拉伸，将其传送到转印区域并且顺序地将形成在多个感光鼓上的调色剂图像转印到转印区域中的转印纸100上; 检测装置，检测从传送到记录材料的图像图像的图像浓度和位移; 以及用于清洁从动辊62的前侧的清洁装置，所述从动辊62的前侧在与从动辊63接触的一侧上将转印带60夹在与检测装置和转印带60的背面相对的位置。清洁装置设置在转印带60的背面。版权所有：（C）2007，JPO＆INPIT

2. 发明专利

JP2006251751A Device for applying lubricant, process cartridge, toner, and image forming apparatus 审中-公开
标题翻译：适用于润滑剂，过程盒，调色剂和图像形成装置的装置
公开(公告)号：JP2006251751A
公开(公告)日：2006-09-21
申请号：JP2005198570
申请日：2005-07-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HARADA HIROOMI , KAWAHARA SHINICHI , KASUGA TERUYUKI , SUDA TAKEO , TAKAHASHI YUTAKA , YANAGIDA MASAHITO , MIZUISHI HARUJI , OOJIYA ATSUYA , FUJISHIRO TAKATSUGU , TABUCHI TAKESHI , TANAKA HIDEKI , HATTORI YOSHIO , YOSHIDA KEIICHI
IPC分类号： G03G21/00 , G03G9/08 , G03G9/087 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide a device for applying lubricant which obviates occurrence of unevenness in applying in the entire area on the surface of a photoreceptor even with an image forming apparatus using toner made spherical and small in grain size, and prevents excess applying as well, and enables applying of an appropriate amount of a lubricant. SOLUTION: A cleaning blade 8a is made to contact the surface of the photoreceptor 1 from its counter direction and a lubricant smoothing blade 8b is made to contact the surface of the photoreceptor 1 from its trailing direction to remove the residual toner remaining on the surface of the photoreceptor by the cleaning blade 8a. The lubricant is applied by the brush roller 3a to the surface of the photoreceptor 1 of the cleaned state and is smoothed by the lubricant smoothing blade 8b on the downstream side to form the thin layer of the lubricant. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于施加润滑剂的装置，即使使用具有球形且粒径小的调色剂的图像形成装置，也可以避免在感光体表面的整个区域中施加不均匀性的装置，并且防止过量使用，并且能够施加适量的润滑剂。解决方案：使清洁刮板8a从其相反方向接触感光体1的表面，并使润滑剂平滑刮板8b从其拖尾方向接触感光体1的表面，以除去剩余的残留调色剂感光体的表面由清洁刮板8a。润滑剂通过刷辊3a施加到清洁状态的感光体1的表面，并且通过下游侧的润滑剂平滑刮板8b平滑以形成润滑剂的薄层。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006154491A Image forming apparatus and toner 审中-公开
标题翻译：图像形成装置和调色剂
公开(公告)号：JP2006154491A
公开(公告)日：2006-06-15
申请号：JP2004346932
申请日：2004-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWASUMI MASANORI , MIZUISHI HARUJI , AMAMIYA MASARU , KOIKE TOSHIO , ONO HIROSHI , FUJISHIRO TAKATSUGU , OOJIYA ATSUYA , ARAI YUJI , YONEDA TAKUJI , TOMITA MASAMI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/02 , G03G15/08 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus having a configuration that can prevent the occurrence of a defective image by preventing filming and fusion of toner on a latent image carrier on condition that a charging device for superposing an AC component on a DC component is used. SOLUTION: In the image forming apparatus having the configuration to form a toner image by uniformly charging the surface of the latent image carrier 2 by a charging member 7 brought into proximity thereto via a micro gap provided therebetween, then by subjecting the electrostatic latent image formed on the latent image carrier 2 to visual image processing, when the maximum value of the spacing between the surface to be charged of the latent image carrier 2 and a charging surface of the charging member 7 is assumed as Gmax (μm) and the minimum value as Gmin (μm), relations Gmax=50 μm, Gmax-Gmin≤30 μm are set and the latent image carrier 2 is provided with a coating application means 13 for applying a lubricant to the surface to be charged. The toner containing zinc stearate (St-Zn) as an additive is used for the toner used in the image visualization processing. 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，其具有能够通过防止在潜在载体上的调色剂的成膜和熔化而防止出现缺陷图像的结构，其条件是将用于将交流分量叠加的充电装置使用DC分量。解决方案：在具有通过由设置在它们之间的微小间隙通过充电部件7均匀地对潜像载体2的表面进行均匀充电而形成调色剂图像的构造的图像形成装置中，当将潜像载体2的被充电表面与充电部件7的充电表面之间的间隔的最大值设为Gmax（μm）时，将潜像形成在潜像载体2上的潜像进行可见图像处理，设定最小值为Gmin（μm），关系Gmax =50μm，Gmax-Gmin≤30μm，并且潜像载体2设置有涂布施加装置13，用于向待充电表面施加润滑剂。使用含有硬脂酸锌（St-Zn）作为添加剂的调色剂用于图像可视化处理中使用的调色剂。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006139112A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006139112A
公开(公告)日：2006-06-01
申请号：JP2004329245
申请日：2004-11-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YONEDA TAKUJI , ONO HIROSHI , KAWASUMI MASANORI , ARAI YUJI , KOIKE TOSHIO , AMAMIYA MASARU , OOJIYA ATSUYA , FUJISHIRO TAKATSUGU , TOMITA MASAMI , MIZUISHI HARUJI , ISHIBASHI HITOSHI
IPC分类号： G03G15/00 , G03G9/08 , G03G9/087 , G03G15/02
CPC分类号： G03G15/5037 , G03G15/0266
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which prevents uneven electrifying and filming and gives high image quality by making it difficult for the electrifying frequency of an AC voltage and the tuning fork driving frequency of a surface potential sensor to resonate. SOLUTION: In the image forming apparatus including: at least a photoreceptor 1 which bears a latent image; a electrifying device 2 for uniformly electrifying a surface of the photoreceptor 1 with a electrifying bias voltage generated by superimposing an AC bias voltage on a DC bias voltage; and a surface potential sensor 8 for measuring the surface potential of the photoreceptor, when the frequency of the AC bias voltage is represented by fc and the driving frequency of the surface potential sensor by fvsen, these have relationships of fc≠fvsen×n and fc×n≠fvsen (where n is an integer). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种防止不均匀的通电和成膜的图像形成装置，并且通过使交流电压的通电频率和表面电位传感器的音叉驱动频率难以共振来提供高图像质量。解决方案：图像形成装置包括：至少一个承载潜像的感光体1; 用于通过将AC偏置电压叠加在DC偏置电压上而产生的带电偏压来均匀地使感光体1的表面带电的带电装置2; 以及用于测量感光体的表面电位的表面电位传感器8，当通过fc表示AC偏置电压的频率和表面电位传感器的驱动频率时，这些具有fc≠fvsen×n和fc的关系 ×n≠fvsen（其中n是整数）。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2006139111A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006139111A
公开(公告)日：2006-06-01
申请号：JP2004329244
申请日：2004-11-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YONEDA TAKUJI , ONO HIROSHI , KAWASUMI MASANORI , ARAI YUJI , AMAMIYA MASARU , KOIKE TOSHIO , OOJIYA ATSUYA , FUJISHIRO TAKATSUGU , TOMITA MASAMI , MIZUISHI HARUJI
IPC分类号： G03G21/00 , G03G9/08 , G03G9/087 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which has such configuration that application of a proper amount of a lubricant is possible, improves the cleaning property of a photoreceptor surface, and prevents occurrence of an abnormal image such as image blur to output a high quality image. SOLUTION: When an image area ratio of a visible image on a photoreceptor 1 surface computed by an image area ratio computing means is less than a predetermined value, toner is input in a non-image-formation region of the photoreceptor 1 surface. When image area ratios in regions divided in the axial direction of the photoreceptor 1 are less than a predetermined value, toner is input in non-image-formation regions in the respective divided regions. When image area ratios in regions divided in the axial direction of the photoreceptor 1 are less than a predetermined value, toner is input in non-image-formation regions only in regions in which the image area ratios are less than the predetermined value among the respective divided regions. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种具有能够施加适当量的润滑剂的结构的图像形成装置，提高了感光体表面的清洁性，并且防止诸如图像模糊的异常图像的发生输出高质量的图像。解决方案：当由图像面积比计算装置计算的感光体1表面上的可见图像的图像面积比小于预定值时，调色剂被输入到感光体1表面的非图像形成区域中。当在感光体1的轴向分割的区域中的图像面积比率小于预定值时，调色剂被输入到各个分割区域中的非图像形成区域中。当在感光体1的轴向分割的区域中的图像面积比小于预定值时，仅在图像面积比小于预定值的区域中，在非图像形成区域中输入调色剂分区。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2006113420A Lubricant applying device, process cartridge and image forming apparatus 有权
标题翻译：润滑剂应用装置，工艺盒和图像形成装置
公开(公告)号：JP2006113420A
公开(公告)日：2006-04-27
申请号：JP2004302426
申请日：2004-10-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AMAMIYA MASARU , KOIKE TOSHIO , KAWASUMI MASANORI , ARAI YUJI , OOJIYA ATSUYA , YONEDA TAKUJI , TOMITA MASAMI , ONO HIROSHI , FUJISHIRO TAKATSUGU , MIZUISHI HARUJI , HOZUMI KOUKI
IPC分类号： G03G21/00 , G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an applying device capable of applying a proper amount of a lubricant from the beginning of loading with the lubricant by preventing the following problem that even in an image forming apparatus using silica added toner made spherical and reduced in particle diameter, a predetermined coefficient of friction of a photoreceptor is not obtained owing to an insufficient applied amount of a lubricant when the lubricant is new, therefore filming is caused. SOLUTION: In order that the surface roughness of a solid lubricant 162 to be abutted on a brush roller 161 is increased to ≥70 μm with respect to ten-point average roughness Rz at the time of loading, the contact surface is preliminarily processed with a metallic brush or a resin polishing brush. As compared with the case that the new solid lubricant 162 is abutted on the brush roller as usual, a surface part of the solid lubricant is easily scraped away, zinc stearate can be sufficiently supplied to a photoreceptor 5 from the beginning of use, filming is prevented and good image formation is made possible. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够从开始装载润滑剂开始施加适量的润滑剂的涂布装置，通过防止以下问题，即使在使用二氧化硅添加的调色剂制成球形和还原的图像形成装置中由于润滑剂新的润滑剂的涂布量不足，因此不能得到感光体的规定的摩擦系数，因此导致成膜。解决方案：为了使与刷辊161抵接的固体润滑剂162的表面粗糙度相对于装载时的十点平均粗糙度Rz增加到≥70μm，预先接触表面用金属刷或树脂抛光刷处理。与新固体润滑剂162通常在刷辊上抵接的情况相比，固体润滑剂的表面部分容易被刮掉，硬脂酸锌可以从使用开始就充分地提供给感光体5，成膜是防止了良好的图像形成。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005134932A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005134932A
公开(公告)日：2005-05-26
申请号：JP2005026856
申请日：2005-02-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHINAMI HIDEKI , TANAKA MASARU , MIZUISHI HARUJI , OOKAJI HIROYUKI , TATSUMI KENZO , MIZUSAWA HIROSHI , AMAMIYA MASARU , OHORI MAYUMI , ISHIGAKI KOJI
IPC分类号： G03G21/14 , G03G15/08 , G03G15/16 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To keep a transfer roller in contact with the surface of a photoreceptor when a toner pattern passes on a transfer roller, in an image forming apparatus in which a toner image formed on a photoreceptor is transferred onto transfer paper by the transfer roller that comes into contact with the photoreceptor and the image density of the toner pattern formed on the photoreceptor is detected by a photo-sensor. SOLUTION: In the image forming apparatus, when the toner pattern passes on the transfer roller 13, a voltage having the same polarity as electrostatically charged toner forming the toner pattern is applied to the transfer roller 13. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：当调色剂图案通过转印辊时，为了保持转印辊与感光体的表面接触，在其中将形成在感光体上的调色剂图像转印到转印纸上的图像形成装置中通过与感光体接触的转印辊，并且通过光传感器检测形成在感光体上的调色剂图案的图像浓度。解决方案：在图像形成装置中，当调色剂图案通过转印辊13时，具有与形成调色剂图案的静电电荷调色剂相同极性的电压施加到转印辊13上。 C）2005，JPO＆NCIPI

8. 发明专利

JP2004325760A Cleaning system, process cartridge, and image forming apparatus 有权
公开(公告)号：JP2004325760A
公开(公告)日：2004-11-18
申请号：JP2003119928
申请日：2003-04-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA MASARU , MIZUISHI HARUJI , HASEGAWA MAKOTO , ISHIBASHI MIKIO , TAMAKI SHINJI , MIZUSAWA HIROSHI , AOKI MITSUO , SHU HIYO
IPC分类号： G03G9/08 , G03G21/00 , G03G21/10 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To prevent the degradation in image quality by maintaining cleaning performance for a long period of time while preventing the early deterioration of the edge of a cleaning blade and the surface of an image carrier which an image forming apparatus has. SOLUTION: A spring G is wound around a shank 35c on the left side in Figure of a bracket 35 for screwing a cleaning blade 17 by means of a blade holder 34 to energize the blade holder 34 to a right side. The tip of the shank 35c on the right side in Figure is thereby pressed to a cam surface 39a of a rocking gear 39 via a pin. The rocking gear is rotated by rotating a driving gear 41, to rock the cleaning blade. The rocking width of the cleaning blade is increased with lapse of time. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2004272295A Image forming apparatus 有权
公开(公告)号：JP2004272295A
公开(公告)日：2004-09-30
申请号：JP2004176055
申请日：2004-06-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIZUISHI HARUJI , TANAKA MASARU , WATANABE SHIGERU , TATSUMI KENZO , YAMAGUCHI TOSHITAKA , SUDA TAKEO , YOSHINAGA HIROSHI , AMAMIYA MASARU , OHORI MAYUMI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To prevent ground contamination of an image, etc. by back flow of developer to the side of a toner replenishment path due to stay of the developer in the vicinity of a developer receiving part and excess supply of toner due to delay of diffusion of replenished toner in the developer, etc. SOLUTION: A toner feeding means for feeding the replenished toner replenished to a toner replenishment part 4a through a toner replenishment port 4c toward a second developer stirring and feeding member 3d is constituted of a screw member 3e having a helically formed feeding fin 3j integrated with the second developer stirring and feeding member 3d and capable of feeding the replenished toner at comparatively high speed and the replenished toner is received at a toner replenishment part 3a provided on the upstream side than the developer receiving part (connection port 11f) of the screw member 3e. COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2004053995A Development device and image forming apparatus 审中-公开
公开(公告)号：JP2004053995A
公开(公告)日：2004-02-19
申请号：JP2002212234
申请日：2002-07-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWASUMI MASANORI , MIZUISHI HARUJI , ISHIBASHI MIKIO
IPC分类号： G03G9/08 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device and an image forming apparatus preventing toner sticking to a developer carrier over the passage of time and in which the image quality is always stable. SOLUTION: In a developing device 4, a photoreceptor 1 and a developing sleeve 9 carrying 2 component developer 10 consisting of toner and carrier are provided. A latent image is visualized by feeding the developer 10 carried on the developing sleeve 9 surface to the latent image formed on the photoreceptor 1. The developing sleeve 9 is provided with a surface layer containing fluorinated carbon resin on a base body consisting of metal. The toner is not easily attached to the surface layer containing the fluorinated carbon resin. COPYRIGHT: (C)2004,JPO

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