JP2012128334A5 - - Google Patents

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Publication number
JP2012128334A5
JP2012128334A5 JP2010281694A JP2010281694A JP2012128334A5 JP 2012128334 A5 JP2012128334 A5 JP 2012128334A5 JP 2010281694 A JP2010281694 A JP 2010281694A JP 2010281694 A JP2010281694 A JP 2010281694A JP 2012128334 A5 JP2012128334 A5 JP 2012128334A5
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Japan
Prior art keywords
developing
developing roller
developer
regulating blade
surface layer
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JP2010281694A
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Japanese (ja)
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JP2012128334A (en
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Priority to JP2010281694A priority Critical patent/JP2012128334A/en
Priority claimed from JP2010281694A external-priority patent/JP2012128334A/en
Publication of JP2012128334A publication Critical patent/JP2012128334A/en
Publication of JP2012128334A5 publication Critical patent/JP2012128334A5/ja
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Claims (16)

非磁性一成分現像剤を収容している現像剤容器と、 静電潜像を担持する像担持体に対向し該現像剤容器の開口部に延在し回動する、弾性層と表面層を有する現像ローラと、 該現像ローラの回転方向に対してカウンター方向に当接し、搬送された現像剤の層を規制する現像剤規制ブレードとを有する現像装置を用いた現像方法であって、 該現像ローラへの該現像剤規制ブレードの当接圧によって、該現像剤規制ブレードの該現像ローラへの当接部よりも該現像ローラの回転方向上流側の該現像ローラ表面に、該現像ローラの軸方向に延びる、該非磁性一成分現像剤を保持可能なしわ状の凹部を生じさせ、該凹部に該非磁性一成分現像剤を担持させて該非磁性一成分現像剤を現像領域に搬送する工程を有することを特徴とする現像方法。 A developer container containing a non-magnetic one-component developer, and an elastic layer and a surface layer, which are opposed to an image carrier carrying an electrostatic latent image, extend to the opening of the developer container and rotate. A developing method using a developing device having a developing roller, and a developer regulating blade that abuts in a counter direction with respect to the rotation direction of the developing roller and regulates the conveyed developer layer, Due to the contact pressure of the developer regulating blade to the roller, the shaft of the developing roller is placed on the surface of the developing roller on the upstream side in the rotation direction of the developing roller from the contact portion of the developer regulating blade to the developing roller. Forming a wrinkle-shaped recess capable of holding the non-magnetic one-component developer extending in a direction, carrying the non-magnetic one-component developer in the recess, and transporting the non-magnetic one-component developer to the development area. The developing method characterized by the above-mentioned. 前記現像ローラと前記現像剤規制ブレードの当接部よりも該現像ローラの回転方向下流側においては前記凹部を消失させる工程をさらに有する請求項１に記載の現像方法。 The developing method according to claim 1, further comprising a step of erasing the concave portion on the downstream side in the rotation direction of the developing roller with respect to a contact portion between the developing roller and the developer regulating blade. 前記現像ローラに対する前記現像剤規制ブレードの当接圧が２００Ｎ／ｍ〜４００Ｎ／ｍである請求項１または２に記載の現像方法。The developing method according to claim 1, wherein a contact pressure of the developer regulating blade with respect to the developing roller is 200 N / m to 400 N / m. 前記弾性層のアスカーＣ硬度が３５度以下である請求項１乃至３のいずれか一項に記載の現像方法。The developing method according to claim 1, wherein the elastic layer has an Asker C hardness of 35 degrees or less. 前記表面層の厚さが１００μｍ以下である請求項１乃至４のいずれか一項に記載の現像方法。The developing method according to claim 1, wherein the thickness of the surface layer is 100 μm or less. 前記現像ローラの表面層形成後のＭＤ１硬度から前記現像ローラの表面層形成前の弾性層のＭＤ１硬度を引いた値が、３０度以下である請求項１乃至５のいずれか一項に記載の現像方法。The value obtained by subtracting the MD1 hardness of the elastic layer before forming the surface layer of the developing roller from the MD1 hardness after forming the surface layer of the developing roller is 30 degrees or less. Development method. 前記現像剤規制ブレードが、ＳＵＳ平板である請求項１乃至６のいずれか一項に記載の現像方法。The developing method according to claim 1, wherein the developer regulating blade is a SUS flat plate. 前記弾性層はシリコーンゴムを有し、前記表面層はウレタン樹脂を有する請求項１乃至７のいずれか一項に記載の現像方法。The developing method according to claim 1, wherein the elastic layer has a silicone rubber, and the surface layer has a urethane resin. 非磁性一成分現像剤を収容している現像剤容器と、 静電潜像を担持する像担持体に対向し該現像剤容器の開口部に延在し回動する、弾性層と表面層を有する現像ローラと、 該現像ローラの回転方向に対してカウンター方向に当接し、搬送された現像剤の層を規制する現像剤規制ブレードとを有し、 該現像ローラは、該現像ローラを回転させたときに、該現像ローラへの該現像剤規制ブレードの当接圧によって、該現像剤規制ブレードの該現像ローラへの当接部よりも該現像ローラの回転方向上流側の該現像ローラ表面に、該現像ローラの軸方向に延びる、該非磁性一成分現像剤を保持可能なしわ状の凹部が生じる表面を有していることを特徴とする現像装置。 A developer container containing a non-magnetic one-component developer, and an elastic layer and a surface layer, which are opposed to an image carrier carrying an electrostatic latent image, extend to the opening of the developer container and rotate. And a developer regulating blade that abuts in a counter direction with respect to the rotation direction of the developing roller and regulates the conveyed developer layer, and the developing roller rotates the developing roller. When the developer regulating blade comes into contact with the developing roller, the developer regulating blade comes into contact with the developing roller on the upstream side in the rotation direction of the developing roller from the contacting portion of the developer regulating blade with the developing roller. And a developing device having a surface on which a wrinkle-shaped recess capable of holding the non-magnetic one-component developer is formed, extending in the axial direction of the developing roller. 前記現像ローラに対する前記現像剤規制ブレードの当接圧が２００Ｎ／ｍ〜４００Ｎ／ｍである請求項９に記載の現像装置。The developing device according to claim 9, wherein a contact pressure of the developer regulating blade with respect to the developing roller is 200 N / m to 400 N / m. 前記弾性層のアスカーＣ硬度が３５度以下である請求項９または１０に記載の現像装置。The developing device according to claim 9 or 10, wherein the elastic layer has an Asker C hardness of 35 degrees or less. 前記表面層の厚さが１００μｍ以下である請求項９乃至１１のいずれか一項に記載の現像装置。The developing device according to claim 9, wherein the surface layer has a thickness of 100 μm or less. 前記現像ローラの表面層形成後のＭＤ１硬度から前記現像ローラの表面層形成前の弾性層のＭＤ１硬度を引いた値が、３０度以下である請求項９乃至１２のいずれか一項に記載の現像装置。The value obtained by subtracting the MD1 hardness of the elastic layer before forming the surface layer of the developing roller from the MD1 hardness after forming the surface layer of the developing roller is 30 degrees or less. Development device. 前記現像剤規制ブレードが、ＳＵＳ平板である請求項９乃至１３のいずれか一項に記載の現像装置。The developing device according to claim 9, wherein the developer regulating blade is a SUS flat plate. 前記弾性層はシリコーンゴムを有し、前記表面層はウレタン樹脂を有する請求項９乃至１４のいずれか一項に記載の現像装置。The developing device according to claim 9, wherein the elastic layer includes silicone rubber, and the surface layer includes a urethane resin. 静電潜像を担持するための像担持体と、該像担持体を一次帯電するための帯電装置と、一次帯電された像担持体に静電潜像を形成するための露光装置と、該静電潜像を現像剤により現像して現像剤画像を形成するための現像装置と、該現像剤画像を転写材に転写するための転写装置とを有する電子写真画像形成装置において、
該現像装置が請求項９乃至１５のいずれか一項に記載の現像装置であることを特徴とする電子写真画像形成装置。 An image carrier for carrying an electrostatic latent image; a charging device for primarily charging the image carrier; an exposure device for forming an electrostatic latent image on the primary charged image carrier; In an electrophotographic image forming apparatus having a developing device for developing an electrostatic latent image with a developer to form a developer image, and a transfer device for transferring the developer image to a transfer material,
An electrophotographic image forming apparatus, wherein the developing apparatus is the developing apparatus according to any one of claims 9 to 15 .
JP2010281694A 2010-12-17 2010-12-17 Developing method, developing device, and electrophotographic image forming apparatus Pending JP2012128334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010281694A JP2012128334A (en) 2010-12-17 2010-12-17 Developing method, developing device, and electrophotographic image forming apparatus

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Application Number Priority Date Filing Date Title
JP2010281694A JP2012128334A (en) 2010-12-17 2010-12-17 Developing method, developing device, and electrophotographic image forming apparatus

Publications (2)

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JP2012128334A JP2012128334A (en) 2012-07-05
JP2012128334A5 true JP2012128334A5 (en) 2014-03-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7783679B2 (en) * 2022-05-24 2025-12-10 キヤノン株式会社 Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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JP3489384B2 (en) * 1997-03-26 2004-01-19 東海ゴム工業株式会社 Development roll
JP2008310294A (en) * 2007-05-16 2008-12-25 Canon Inc Developing device and image forming apparatus
JP2009063808A (en) * 2007-09-06 2009-03-26 Konica Minolta Business Technologies Inc Developing roller and developing device

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