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    • 1. 发明专利
    • 画像形成装置、及びプロセスカートリッジ
    • 图像形成装置和处理盒
    • JP2015022078A
    • 2015-02-02
    • JP2013148818
    • 2013-07-17
    • 富士ゼロックス株式会社Fuji Xerox Co Ltd
    • MOROOKA YASUHISAICHIJO NAGATOKURIBAYASHI MASATAKAKOIDE TAKASHIKITAJIMA KATSUYUKITAKAHASHI SHOTARO
    • G03G21/00G03G9/08G03G15/08
    • 【課題】低温低湿環境下でのシリカ粒子のクリーニングブレードからのすり抜けに起因する画像の濃度変化が生じる現象及び高温高湿環境下での像保持体の回転負荷の上昇を抑制する画像形成装の提供【解決手段】像保持体と、個数平均粒径が100nm以上180nm以下であり且つ形状係数SF2が130以上180以下である第1シリカ粒子、及び個数平均粒径が100nm以上180nm以下であり且つ形状係数SF2が100以上125以下である第2シリカ粒子を含む外添剤を有するトナーを含む静電荷像現像剤を収容し、静電荷像現像剤により、像保持体の表面に形成された静電荷像をトナー画像として現像する現像手段と、像保持体の表面をクリーニングするクリーニングブレードを有するクリーニング手段と、像保持体の表面に潤滑剤を供給する潤滑剤供給手段と、を備える画像形成装置である。【選択図】図1
    • 要解决的问题:提供一种图像形成装置,其抑制由于二氧化硅颗粒在低温和低湿度环境下通过清洁刮板而导致的图像密度变化的发生,并且旋转载荷的增加 在高温高湿环境下的图像载体。图像形成装置包括:图像载体; 显影装置,用于容纳含有包含数均粒径为100nm以上且180nm以下且形状因子SF2为130以上且180以下的第一二氧化硅粒子的外部添加剂的调色剂的静电荷图像显影剂,以及 数均粒径为100nm以上且180nm以下,形状因子SF2为100以上且125以下的第二二氧化硅粒子,并且在图像载体的表面上形成的显影静电电荷图像作为调色剂图像, 静电荷图像显影剂; 清洁装置,包括清洁图像载体表面的清洁刮板; 以及用于向图像载体的表面供给润滑剂的润滑剂供给装置。
    • 3. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2014085509A
    • 2014-05-12
    • JP2012234323
    • 2012-10-24
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • NAKAI EIJIINOUE TOYOFUMIUENO YOSHINARIKURIBAYASHI MASATAKAKOIDE TAKASHIKITAJIMA KATSUYUKIKAMIZAKI MAKOTOERI YOSHIFUMISATO SHIGEMASA
    • G03G15/16
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing scattering of a toner image during the transfer of the toner image onto a sheet.SOLUTION: An image forming apparatus includes: a toner image forming unit that forms a toner image based on image data, and continuously transfers the toner image onto a conveyed sheet P along with the conveyance of the sheet P from a front end side to a rear end side in the conveyance direction of the sheet P; a fixing unit 40 that is arranged on a downstream side in the sheet conveyance direction of the toner image forming unit, and fixes the toner image transferred onto the sheet P by the toner image forming unit onto the sheet P; and a needle piercing unit 60 that pierces a plurality of portions two-dimensionally dispersed on the sheet P for ventilation, before the transfer of the toner image formed by the toner image forming unit onto the sheet P.
    • 要解决的问题:提供一种成像设备,其能够抑制将调色剂图像转印到片材上时调色剂图像的散射。解决方案:图像形成设备包括:调色剂图像形成单元,其形成基于 并且随着片材P从片材P的传送方向的前端侧到后端侧的传送,将调色剂图像连续地传送到被输送的片材P上; 定影单元40,其布置在调色剂图像形成单元的纸张输送方向的下游侧,并且将由调色剂图像形成单元转印到纸张P上的调色剂图像定影到纸张P上; 以及在将由调色剂图像形成单元形成的调色剂图像转印到纸张P上之前,穿透二维分散在纸张P上用于通风的多个部分的针刺单元60。
    • 4. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2014085505A
    • 2014-05-12
    • JP2012234308
    • 2012-10-24
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • KURIBAYASHI MASATAKAINOUE TOYOFUMIUENO YOSHINARIKOIDE TAKASHINAKAI EIJIKITAJIMA KATSUYUKIKAMIZAKI MAKOTOERI YOSHIFUMISATO SHIGEMASA
    • G03G15/00G03G15/16
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing scattering of a toner image during the transfer of the toner image onto a sheet.SOLUTION: An image forming apparatus 100 includes: a toner image forming unit that forms a toner image based on image data, and continuously transfers the toner image onto a conveyed sheet along with the conveyance of the sheet from a front end side to a rear end side in the conveyance direction of the sheet; and a fixing unit that is arranged on a downstream side in the sheet conveyance direction of the toner image forming unit, and fixes the toner image transferred onto the sheet by the toner image forming unit onto the sheet. The toner image forming unit has a toner image pressing part pressing the toner image before the transfer onto the sheet.
    • 要解决的问题:提供一种能够抑制在将调色剂图像转印到片材上时调色剂图像的散射的图像形成装置。解决方案:图像形成装置100包括:调色剂图像形成单元,其形成基于调色剂的图像 并且随着纸张从片材的输送方向的前端侧到后端侧的传送,将调色剂图像连续地传送到被输送的片材上; 以及固定单元,其布置在调色剂图像形成单元的片材输送方向的下游侧,并且将由调色剂图像形成单元转印到片材上的调色剂图像定影到片材上。 调色剂图像形成单元具有在转印到纸张上之前将调色剂图像按压的调色剂图像按压部。
    • 6. 发明专利
    • Image forming device and process cartridge
    • 图像形成装置和过程盒
    • JP2009229727A
    • 2009-10-08
    • JP2008074061
    • 2008-03-21
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • UENO YOSHINARININOMIYA MASANOBUKURIBAYASHI MASATAKAMASUDA YUJIONISHI NAOKIINOUE TOYOFUMIKOIDE TAKASHIKOJIMA MASAKO
    • G03G21/00G03G21/10
    • PROBLEM TO BE SOLVED: To provide an image forming device where reduction in image quality is suppressed.
      SOLUTION: The image forming device includes an image holder for holding an image formed on a surface while moving so that the surface is circulated and moved, an image forming section for forming the image on the surface of the image holder with a predetermined first toner, a transfer section for transferring the image formed by the image forming section from the upside of the image holder to a predetermined transferring object, a cleaning member for removing a deposit on the surface by coming into contact with and sliding on the surface of the image holder on the downstream side of the transfer section in the circulation movement, and a toner supply section for supplying a predetermined second toner harder than the first toner to the surface of the image holder independently of the image formation by the first toner, and feeding it to the cleaning member.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供抑制图像质量降低的图像形成装置。 解决方案:图像形成装置包括图像保持器,用于在移动时保持形成在表面上的图像,使得表面被循环移动;图像形成部,用于以预定的方式在图像保持器的表面上形成图像 第一调色剂,用于将由图像形成部分形成的图像从图像保持器的上侧转印到预定转印体的转印部分,用于通过与表面接触并在表面上滑动来去除表面上的沉积物的清洁部件 在转印部分的下游侧的图像保持器在循环运动中,以及调色剂供给部分,用于将与第一调色剂相比硬度更高的预定的第二调色剂供给到图像保持器的表面,而与第一调色剂的图像形成无关,以及 将其送至清洁部件。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Cleaning device and image forming apparatus
    • 清洁装置和图像形成装置
    • JP2008268426A
    • 2008-11-06
    • JP2007109344
    • 2007-04-18
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • KURIBAYASHI MASATAKANINOMIYA MASANOBUMASUDA YUJIIKEDA MASAFUMIONISHI NAOKI
    • G03G15/16G03G21/10
    • PROBLEM TO BE SOLVED: To provide a cleaning device which has an improved cleaning level with respect to low melting point toner and an image forming apparatus in which degradation in image quality is suppressed.
      SOLUTION: The cleaning device cleans residual toner remaining on the surface of an intermediate transfer body onto which a toner image is transferred and which transfers the toner image to a recording medium, wherein the toner image comprises toner having a storage elastic modulus at 45°C of 5×10
      7 Pa to 6×10
      8 Pa. The cleaning device is provided with a cleaning blade having a contact layer coming in contact with the intermediate transfer body and a support layer supporting the contact layer and having a hardness lower than that of the contact layer.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种相对于低熔点调色剂具有改进的清洁水平的清洁装置和其中抑制了图像质量劣化的图像形成装置。 解决方案:清洁装置清洁残留在转印有调色剂图像的中间转印体的表面上的残留调色剂,并将调色剂图像转印到记录介质上,其中调色剂图像包括具有储存弹性模量的调色剂 45℃为5×10 7 Pa至6×10 8 Pa。 清洁装置设置有具有与中间转印体接触的接触层的清洁刮板和支撑接触层的硬度低于接触层的硬度的支撑层。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2008112085A
    • 2008-05-15
    • JP2006296189
    • 2006-10-31
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • IKEDA MASAFUMININOMIYA MASANOBUKURIBAYASHI MASATAKAKOIDE TAKASHI
    • G03G15/16
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus whose image quality is hardly deteriorated even when toner having a low melting point is used. SOLUTION: The image forming apparatus is equipped with: an image holding body which holds an image on its surface and moves on a path passing through a developing position and a first transfer position in this order and on which an electrostatic latent image is formed on a more upstream side than the developing position; a developing part which forms a developed image by developing the electrostatic latent image with developer containing toner containing crystalline resin by ≥5 wt.% and set so that loss elastic modulus at 40°C may be within a range of ≥2×10 8 Pa and ≤7×10 8 Pa and having the charge of a predetermined polarity at the developing position; an intermediate transfer body which moves on a circulation path passing through the first transfer position and a predetermined second transfer position; a first transfer part which transfers the developed image to the intermediate transfer body by electric action at the first transfer position; a cleaning part which removes the toner from the surface of the image holding body on a more downstream side than the first transfer position; a second transfer part which transfers the developed image from the intermediate transfer body to a body to be transferred at the second transfer position; and a charge imparting part which imparts charge having a reverse polarity to a predetermined polarity to the toner on the intermediate transfer body. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供即使使用具有低熔点的调色剂的图像质量几乎不劣化的图像形成装置。 图像形成装置具备:图像保持体,其在其表面上保持图像,并且依次通过显影位置和第一转印位置的路径移动,静电潜像 形成在比显影位置更上游的一侧; 显影部分,通过用含有结晶树脂的含有调色剂的显影剂显影静电潜像而形成显影图像,≥5重量%,并设定为使得在40℃下的损耗弹性模量可以在≥2×10 8 Pa和≤7×10 8 Pa,并且在显影位置具有预定极性的电荷; 中间转印体,其在通过所述第一转印位置和预定的第二转印位置的循环路径上移动; 第一转印部,其通过在第一转印位置处的电作用将显影图像转印到中间转印体; 清洁部,其在比第一转印位置更靠下游侧从图像保持体的表面除去调色剂; 将显影图像从中间转印体转印到在第二转印位置被转印的主体的第二转印部分; 以及向中间转印体上的调色剂赋予具有与预定极性相反极性的电荷的电荷赋予部分。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2008090184A
    • 2008-04-17
    • JP2006273290
    • 2006-10-04
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • ONISHI NAOKIUENO YOSHINARIFURUKI MANABUUCHIDA MASAHIROKURIBAYASHI MASATAKAKOJIMA MASAKO
    • G03G15/08
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus which avoids a decrease in image density due to deteriorated toner. SOLUTION: The image forming apparatus forms a toner image by developing an electrostatic latent image using developer containing toner, transfers and fixes the toner image onto a recording medium to thereby form an image composed of the toner image on the recording medium. The image forming apparatus is provided with: a developing section which has the developer containing the toner and develops the electrostatic latent image with the toner in the developer to thereby form the toner image; a temperature detecting section which directly or indirectly detects the temperature of the developer in the developing section; a toner recovery section which recovers the toner in the developer of the developing section and/or the toner of the toner image, when the detection result of the temperature detecting section shows a predetermined high-temperature state; and a toner supply section which adds an external additive to the toner recovered by the toner recovery section and then, supplies the toner with the external additive to the developing section. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种避免由于调色剂劣化导致的图像浓度降低的图像形成装置。 解决方案:图像形成装置通过使用含有调色剂的显影剂显影静电潜像来形成调色剂图像,将调色剂图像转印并固定到记录介质上,从而在记录介质上形成由调色剂图像组成的图像。 图像形成装置设置有:显影部,其具有含有调色剂的显影剂,并使显影剂中的调色剂显影静电潜像,从而形成调色剂图像; 温度检测部,其直接或间接地检测显影部中的显影剂的温度; 当温度检测部分的检测结果显示预定的高温状态时,调色剂回收部分回收显影部分的显影剂中的调色剂和/或调色剂图像的调色剂; 以及调色剂供应部分,其将外部添加剂添加到由调色剂回收部分回收的调色剂上,然后将调色剂供给到显影部分。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2007279360A
    • 2007-10-25
    • JP2006105173
    • 2006-04-06
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • KOIDE TAKASHIUENO YOSHINARIKURIBAYASHI MASATAKA
    • G03G15/16
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing the occurrence of fogging and transfer defects by removing residual toner on the surface of an intermediate transfer belt. SOLUTION: The image forming apparatus includes an image carrier and can form an image composed of a fixed toner image on a recording medium by forming a toner image on the surface of the image carrier and finally transferring and fixing the toner image on the recording medium. The apparatus is provided with: a plurality of supporting members each of which has a roll shape; a circular belt which is stretched over the plurality of supporting members and made to circularly move around the plurality of supporting members to receive the transfer of the toner image from the image carrier, and conveys the transferred toner image up to a position where the toner image is transferred to the recording medium; and an adhesive member which is located on the opposite side to the prescribed supporting member out of the plurality of supporting members across the circular belt and is brought into contact with the circular belt to remove unnecessary articles on the circular belt by adhesive force. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够通过去除中间转印带的表面上的残留调色剂来抑制起雾和转印缺陷的发生的图像形成装置。 解决方案:图像形成装置包括图像载体,并且可以通过在图像载体的表面上形成调色剂图像来形成由记录介质上的固定的调色剂图像构成的图像,并最终将调色剂图像转印并固定在 记录介质。 该装置设有:多个支撑构件,每个支撑构件具有卷状; 圆形带,其被拉伸在多个支撑构件上并且围绕多个支撑构件圆周地移动以接收来自图像载体的调色剂图像的转印,并将转印的调色剂图像传送到调色剂图像的位置 被传送到记录介质; 以及粘合构件,其位于与所述多个支撑构件相对的规定支撑构件的与所述圆形带相对的相对侧上,并与所述圆形带接触,以通过粘合力去除所述圆形带上的不需要的物品。 版权所有(C)2008,JPO&INPIT