JP2020187191A5 - - Google Patents

Download PDF

Info

Publication number
JP2020187191A5
JP2020187191A5 JP2019090253A JP2019090253A JP2020187191A5 JP 2020187191 A5 JP2020187191 A5 JP 2020187191A5 JP 2019090253 A JP2019090253 A JP 2019090253A JP 2019090253 A JP2019090253 A JP 2019090253A JP 2020187191 A5 JP2020187191 A5 JP 2020187191A5
Authority
JP
Japan
Prior art keywords
developer carrier
image forming
current
supply member
forming apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2019090253A
Other languages
Japanese (ja)
Other versions
JP7309441B2 (en
JP2020187191A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2019090253A priority Critical patent/JP7309441B2/en
Priority claimed from JP2019090253A external-priority patent/JP7309441B2/en
Publication of JP2020187191A publication Critical patent/JP2020187191A/en
Publication of JP2020187191A5 publication Critical patent/JP2020187191A5/ja
Application granted granted Critical
Publication of JP7309441B2 publication Critical patent/JP7309441B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Description

上記目的は本発明に係る画像形成装置にて達成される。要約すれば、本発明は、トナー像を担持する像担持体と、トナーを担持して前記像担持体と対向する対向部にトナーを搬送する回転可能な現像剤担持体と、前記現像剤担持体と当接して前記現像剤担持体の表面にトナーを供給する回転可能な供給部材と、前記現像剤担持体の表面に供給されたトナーの量を規制する規制部材と、を備えた現像装置と、前記現像剤担持体と前記供給部材と、が回転し、前記現像剤担持体と前記規制部材との間に電位差が生じている状態で、前記現像剤担持体から前記供給部材に流れる電流を検知する電流検知手段と、前記電流検知手段の検知結果に基づいて、前記現像装置の寿命に関する情報を報知する処理を実行する制御手段と、を有することを特徴とする画像形成装置である。 The above object is achieved by the image forming apparatus according to the present invention. In summary, the present invention comprises an image carrier that carries a toner image, a rotatable developer carrier that supports the toner and conveys the toner to a portion facing the image carrier, and the developer carrier. Development with a rotatable supply member that comes into contact with the body and supplies toner to the surface of the developer carrier, and a regulator that regulates the amount of toner supplied to the surface of the developer carrier. The apparatus, the developer carrier, and the supply member rotate, and the developer flows from the developer carrier to the supply member in a state where a potential difference is generated between the developer carrier and the restricting member. The image forming apparatus is characterized by having a current detecting means for detecting a current and a control means for executing a process of notifying information on the life of the developing apparatus based on the detection result of the current detecting means. ..

Claims (8)

トナー像を担持する像担持体と、
トナーを担持して前記像担持体と対向する対向部にトナーを搬送する回転可能な現像剤担持体と、前記現像剤担持体と当接して前記現像剤担持体の表面にトナーを供給する回転可能な供給部材と、前記現像剤担持体の表面に供給されたトナーの量を規制する規制部材と、を備えた現像装置と、
前記現像剤担持体と前記供給部材と、が回転し、前記現像剤担持体と前記規制部材との間に電位差が生じている状態で、前記現像剤担持体から前記供給部材に流れる電流を検知する電流検知手段と、
前記電流検知手段の検知結果に基づいて、前記現像装置の寿命に関する情報を報知する処理を実行する制御手段と、
を有することを特徴とする画像形成装置。 An image carrier that supports a toner image and
A rotatable developer carrier that supports the toner and conveys the toner to a portion facing the image carrier, and a rotation that abuts on the developer carrier and supplies the toner to the surface of the developer carrier. A developing apparatus comprising a possible supply member and a regulatory member that regulates the amount of toner supplied to the surface of the developer carrier.
The current flowing from the developer carrier to the supply member is detected in a state where the developer carrier and the supply member rotate and a potential difference is generated between the developer carrier and the regulation member. Current detection means and
A control means for executing a process of notifying information on the life of the developing device based on the detection result of the current detecting means, and a control means.
An image forming apparatus characterized by having. 前記制御手段は、前記電流検知手段によって検知された電流の絶対値が所定の閾値以上の場合に、前記現像装置の寿命に関する情報を報知する処理を実行することを特徴とする請求項１に記載の画像形成装置。 The first aspect of the present invention is characterized in that the control means executes a process of notifying information regarding the life of the developing apparatus when the absolute value of the current detected by the current detecting means is equal to or higher than a predetermined threshold value. Image forming device. 前記寿命に関する情報は、前記現像装置が寿命に達したことを示す情報であることを特徴とすることを特徴とする請求項１又は２に記載の画像形成装置。 The image forming apparatus according to claim 1 or 2, wherein the information regarding the life is information indicating that the developing device has reached the end of its life. 前記現像剤担持体と前記供給部材とは、前記現像剤担持体と前記供給部材との当接部において互いの表面が同方向に周速差を持って移動する方向にそれぞれ回転することを特徴とする請求項１乃至３のいずれか一項に記載の画像形成装置。 The developer carrier and the supply member are characterized in that the surfaces of the developer carrier and the supply member rotate in the same direction with a peripheral speed difference at the contact portion between the developer carrier and the supply member. The image forming apparatus according to any one of claims 1 to 3 . 前記電流の検知時に、前記現像剤担持体と前記供給部材との間の電位差は５０Ｖ以下であることを特徴とする請求項１乃至４のいずれか一項に記載の画像形成装置。 The image forming apparatus according to any one of claims 1 to 4 , wherein when the current is detected, the potential difference between the developer carrier and the supply member is 50 V or less. 前記電流の検知時に、前記現像剤担持体と前記規制部材との間の電位差は画像形成動作時と略同一であることを特徴とする請求項１乃至５のいずれか一項に記載の画像形成装置。 The image forming according to any one of claims 1 to 5 , wherein when the current is detected, the potential difference between the developer carrier and the restricting member is substantially the same as during the image forming operation. Device. 前記現像剤担持体を前記像担持体に対して当接及び離間させる離接手段を有し、前記電流の検知時に、前記現像剤担持体は、前記離接手段によって前記像担持体から離間させられていることを特徴とする請求項１乃至６のいずれか一項に記載の画像形成装置。 It has a detaching means for abutting and separating the developer carrier from the image carrier, and when the current is detected, the developer carrier is separated from the image carrier by the detaching means. The image forming apparatus according to any one of claims 1 to 6 , wherein the image forming apparatus is characterized by the above. 前記電流の検知時に、前記現像剤担持体と前記供給部材と、には、電圧が印加されないことを特徴とする請求項６に記載の画像形成装置。The image forming apparatus according to claim 6, wherein no voltage is applied to the developer carrier and the supply member when the current is detected.
JP2019090253A 2019-05-10 2019-05-10 image forming device Active JP7309441B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019090253A JP7309441B2 (en) 2019-05-10 2019-05-10 image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019090253A JP7309441B2 (en) 2019-05-10 2019-05-10 image forming device

Publications (3)

Publication Number Publication Date
JP2020187191A JP2020187191A (en) 2020-11-19
JP2020187191A5 true JP2020187191A5 (en) 2022-05-17
JP7309441B2 JP7309441B2 (en) 2023-07-18

Family

ID=73221016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019090253A Active JP7309441B2 (en) 2019-05-10 2019-05-10 image forming device

Country Status (1)

Country Link
JP (1) JP7309441B2 (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000047470A (en) * 1998-07-31 2000-02-18 Seiko Epson Corp Image forming device
JP2002174953A (en) * 2000-12-08 2002-06-21 Bridgestone Corp Method for observing charge moving state and method for evaluation development process in electrophotographic system
JP4628716B2 (en) * 2004-02-13 2011-02-09 株式会社沖データ Developing device, process cartridge, and image forming apparatus
JP5321935B2 (en) * 2007-04-26 2013-10-23 株式会社リコー Developing device, image forming apparatus using the same, and development abnormality determination method
JP5180270B2 (en) * 2010-09-22 2013-04-10 シャープ株式会社 Developing device and image forming apparatus
JP2012141444A (en) * 2010-12-28 2012-07-26 Oki Data Corp Image forming apparatus
JP5734028B2 (en) * 2011-03-04 2015-06-10 キヤノン株式会社 Image forming apparatus
JP5613089B2 (en) * 2011-03-25 2014-10-22 株式会社沖データ Image forming apparatus
JP2013083841A (en) * 2011-10-12 2013-05-09 Sharp Corp Developing device, and image forming apparatus
JP6012243B2 (en) * 2012-04-26 2016-10-25 キヤノン株式会社 Developing device, process cartridge, and image forming apparatus
JP2014038160A (en) * 2012-08-13 2014-02-27 Canon Inc Image forming apparatus
JP6257218B2 (en) * 2013-08-23 2018-01-10 キヤノン株式会社 Image forming method
JP2017111376A (en) * 2015-12-18 2017-06-22 株式会社沖データ Image formation device and image density adjustment method
JP7013173B2 (en) * 2017-08-31 2022-01-31 キヤノン株式会社 Image forming device

Similar Documents

Publication Publication Date Title
US7937035B2 (en) Image forming apparatus including cleaning unit provided with cleaning member having free end facing upward and friction reducing unit, and image forming method
JP2022150066A5 (en)
JP2003287942A (en) Developing device
JP6168910B2 (en) Image forming apparatus
JP2014238457A (en) Image forming apparatus
JP2015084015A5 (en)
JP2020187191A5 (en)
JP2017032777A5 (en)
JP2016157063A (en) Image forming apparatus
JP2016090908A (en) Image forming apparatus
JP2017219832A5 (en)
JP2007171470A (en) Image forming apparatus
US20200341407A1 (en) Layer thickness in print agent concentration apparatus
JP2017026963A5 (en)
US9733608B2 (en) Determining light quantity of pre-charging exposure device in an image forming apparatus and cartridge
JP2017125995A (en) Image forming apparatus
JP2016033579A5 (en)
JP2020134769A (en) Image forming apparatus and image forming method
JP2015219435A (en) Image forming apparatus, and control method of image forming apparatus
JP6447993B2 (en) Image forming apparatus
JP2017054055A5 (en)
JP7263861B2 (en) image forming device
US20150362871A1 (en) Image forming apparatus and method of controlling the same
JP6380440B2 (en) Image forming apparatus
JP2007171469A (en) Image forming apparatus