JP2018081331A5 - Image forming apparatus - Google Patents
Image forming apparatus Download PDFInfo
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- JP2018081331A5 JP2018081331A5 JP2018020268A JP2018020268A JP2018081331A5 JP 2018081331 A5 JP2018081331 A5 JP 2018081331A5 JP 2018020268 A JP2018020268 A JP 2018020268A JP 2018020268 A JP2018020268 A JP 2018020268A JP 2018081331 A5 JP2018081331 A5 JP 2018081331A5
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- 238000000926 separation method Methods 0.000 claims description 47
- 230000001808 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 230000000875 corresponding Effects 0.000 claims 3
Description
本発明は、画像形成装置に関するものである。
The present invention relates to images forming device.
本発明の目的は、感光体ドラムと現像ユニットを装着した引き出し部材を装置本体内に装着する画像形成装置において、感光体ドラムと現像ローラとが接離可能で、且つ小型化を実現できる画像形成装置を提供することにある。
An object of the present invention, the images forming apparatus you mount the drawer member fitted with a developing unit and a photosensitive drum in the apparatus main body, the photosensitive drum and the developing roller can be separable, and can realize miniaturization and to provide a that images forming device.
すなわち、本発明の画像形成装置は、
本体開口を備えた装置本体と、
前記本体開口を開閉するドアと、
前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能なユニットと、を有する画像形成装置であって、
前記ユニットは、
感光体と、前記感光体を回転させるための駆動力を受ける感光ドラムカップリングと、前記感光体に接触して前記感光体上に形成された静電潜像を現像する為の現像ローラと、前記現像ローラを回転させるための駆動力を受ける現像カップリングと、前記現像ローラに供給する現像剤を収容する現像剤収容部と、を有するプロセスカートリッジと、
前記プロセスカートリッジを取り外し可能に支持し、前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能な支持部材と、を有し、
前記装置本体は、
前記ドアが閉まる動作に連動して、前記現像カップリングと係合して前記現像カップリングに駆動力を伝える本体側現像カップリングと、
前記ドアが閉まる動作に連動して、前記感光ドラムカップリングと係合して前記感光ドラムカップリングに駆動力を伝える本体側感光ドラムカップリングと、有し、
前記ユニットは、
前記感光体と前記現像ローラとを接触させるための接触位置と、前記感光体と前記現像ローラとを離間させる為の離間位置と、を取り得る接離部材と、
前記装置本体からの駆動力を第1の方向に回転し伝達することで前記接離部材を、前記離間位置から前記接触位置に移動させる移動部材と、を有し、
前記移動部材は、前記第1の方向とは逆の第2の方向に回転することで、前記接離部材を、前記接触位置から前記離間位置に移動させ、前記接離部材が前記離間位置に移動したときに、前記感光体は前記現像ローラから離間し、
前記接離部材は、前記感光体の長手方向において前記感光体の片方の端部の外側にのみ設けられていることを特徴とする。
That is, the image forming apparatus of the present invention is
A device body with a body opening;
A door that opens and closes the body opening;
An image forming apparatus having a unit movable between an inner position located inside the apparatus main body and an outer position located outside the apparatus main body through the main body opening,
The unit is
A photoconductor, a photosensitive drum coupling that receives a driving force for rotating the photoconductor, a developing roller for developing an electrostatic latent image formed on the photoconductor in contact with the photoconductor, A process cartridge having a development coupling for receiving a driving force for rotating the development roller, and a developer accommodating portion for accommodating a developer to be supplied to the development roller ;
A support member that removably supports the process cartridge and is movable between an inner position located inside the apparatus main body and an outer position located outside the apparatus main body through the main body opening; Have
The apparatus main body is
In conjunction with the operation of closing the door, a main body side development coupling that engages with the development coupling and transmits driving force to the development coupling;
A main body side photosensitive drum coupling that engages with the photosensitive drum coupling and transmits a driving force to the photosensitive drum coupling in conjunction with the operation of closing the door,
The unit is
A contact / separation member capable of taking a contact position for bringing the photosensitive member and the developing roller into contact with each other and a separation position for separating the photosensitive member and the developing roller;
A moving member that moves the contact / separation member from the separation position to the contact position by rotating and transmitting a driving force from the apparatus main body in a first direction;
The moving member rotates in a second direction opposite to the first direction, thereby moving the contact / separation member from the contact position to the separation position, and the contact / separation member is moved to the separation position. When moved, the photoreceptor is separated from the developing roller,
The contact / separation member is provided only on the outer side of one end of the photoconductor in the longitudinal direction of the photoconductor .
また、他の発明は、
本体開口を備えた装置本体と、
前記本体開口を開閉するドアと、
前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能なユニットと、を有する画像形成装置であって、
前記ユニットは、
感光体と、前記感光体に接触して前記感光体上に形成された静電潜像を現像する為の現像ローラと、前記現像ローラに供給する現像剤を収容する現像剤収容部と、を有するプロセスカートリッジと、
前記プロセスカートリッジを取り外し可能に支持し、前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能な支持部材と、を有し、
前記ユニットは、
前記感光体と前記現像ローラとを接触させるための接触位置と、前記感光体と前記現像ローラとを離間させる為の離間位置と、を取り得る接離部材と、
前記装置本体からの駆動力を第1の方向に回転し伝達することで前記接離部材を、前記離間位置から前記接触位置に移動させる移動部材と、を有し、
前記移動部材は、前記第1の方向とは逆の第2の方向に回転することで、前記接離部材を、前記接触位置から前記離間位置に移動させ、前記接離部材が前記離間位置に移動したときに、前記感光体は前記現像ローラから離間し、
前記接離部材は、前記感光体の長手方向において前記感光体の片方の端部の外側にのみ設けられていることを特徴とする。
In addition, other inventions
A device body with a body opening ;
A door that opens and closes the body opening;
Through said body opening, and an inner position located inside the apparatus main body, and an outer position located outside of the apparatus main body, met images forming apparatus that Yusuke a unit movable, the between And
The unit is
A photoconductor, a developing roller for developing an electrostatic latent image formed on the photoconductor in contact with the photoconductor, and a developer containing portion for containing a developer supplied to the developing roller. Having a process cartridge;
A support member that removably supports the process cartridge and is movable between an inner position located inside the apparatus main body and an outer position located outside the apparatus main body through the main body opening; Have
The unit is
A contact / separation member capable of taking a contact position for bringing the photosensitive member and the developing roller into contact with each other and a separation position for separating the photosensitive member and the developing roller;
A moving member that moves the contact / separation member from the separation position to the contact position by rotating and transmitting a driving force from the apparatus main body in a first direction;
The moving member rotates in a second direction opposite to the first direction, thereby moving the contact / separation member from the contact position to the separation position, and the contact / separation member is moved to the separation position. When moved, the photoreceptor is separated from the developing roller,
The contact / separation member is provided only on the outer side of one end of the photoconductor in the longitudinal direction of the photoconductor .
以上説明したように、本発明によれば、感光体ドラムと現像ユニットを装着した引き出し部材を装置本体内に装着する画像形成装置において、感光体ドラムと現像ローラとが接触離間可能で、且つ小型化を実現できる。 As described above, according to the present invention, the images forming apparatus you mount the drawer member fitted with a developing unit and a photosensitive drum in the apparatus main body, a photosensitive drum and the developing roller are contactable apart, In addition, downsizing can be realized.
Claims (8)
前記本体開口を開閉するドアと、
前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能なユニットと、を有する画像形成装置であって、
前記ユニットは、
感光体と、前記感光体を回転させるための駆動力を受ける感光ドラムカップリングと、前記感光体に接触して前記感光体上に形成された静電潜像を現像する為の現像ローラと、前記現像ローラを回転させるための駆動力を受ける現像カップリングと、前記現像ローラに供給する現像剤を収容する現像剤収容部と、を有するプロセスカートリッジと、
前記プロセスカートリッジを取り外し可能に支持し、前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能な支持部材と、を有し、
前記装置本体は、
前記ドアが閉まる動作に連動して、前記現像カップリングと係合して前記現像カップリングに駆動力を伝える本体側現像カップリングと、
前記ドアが閉まる動作に連動して、前記感光ドラムカップリングと係合して前記感光ドラムカップリングに駆動力を伝える本体側感光ドラムカップリングと、有し、
前記ユニットは、
前記感光体と前記現像ローラとを接触させるための接触位置と、前記感光体と前記現像ローラとを離間させる為の離間位置と、を取り得る接離部材と、
前記装置本体からの駆動力を第1の方向に回転し伝達することで前記接離部材を、前記離間位置から前記接触位置に移動させる移動部材と、を有し、
前記移動部材は、前記第1の方向とは逆の第2の方向に回転することで、前記接離部材を、前記接触位置から前記離間位置に移動させ、前記接離部材が前記離間位置に移動したときに、前記感光体は前記現像ローラから離間し、
前記接離部材は、前記感光体の長手方向において前記感光体の片方の端部の外側にのみ設けられていることを特徴とする画像形成装置。 A device body with a body opening;
A door that opens and closes the body opening;
An image forming apparatus having a unit movable between an inner position located inside the apparatus main body and an outer position located outside the apparatus main body through the main body opening,
The unit is
A photoconductor, a photosensitive drum coupling that receives a driving force for rotating the photoconductor, a developing roller for developing an electrostatic latent image formed on the photoconductor in contact with the photoconductor, A process cartridge having a development coupling for receiving a driving force for rotating the development roller, and a developer accommodating portion for accommodating a developer to be supplied to the development roller ;
A support member that removably supports the process cartridge and is movable between an inner position located inside the apparatus main body and an outer position located outside the apparatus main body through the main body opening; Have
The device body is
In conjunction with the operation of closing the door, a main body side development coupling that engages with the development coupling and transmits driving force to the development coupling;
A main body side photosensitive drum coupling that engages with the photosensitive drum coupling and transmits a driving force to the photosensitive drum coupling in conjunction with the operation of closing the door,
The unit is
A contact / separation member capable of taking a contact position for bringing the photosensitive member and the developing roller into contact with each other and a separation position for separating the photosensitive member and the developing roller;
A moving member that moves the contact / separation member from the separation position to the contact position by rotating and transmitting a driving force from the apparatus main body in a first direction;
The moving member rotates in a second direction opposite to the first direction, thereby moving the contact / separation member from the contact position to the separation position, and the contact / separation member is moved to the separation position. When moved, the photoreceptor is separated from the developing roller,
The image forming apparatus, wherein the contacting / separating member is provided only outside one end of the photoconductor in the longitudinal direction of the photoconductor.
付与部を有し、
前記駆動力受け部が駆動力を受け、前記接離部材が前記離間位置に移動し、該移動に応じて前記力付与部が前記プロセスカートリッジの枠体に当接し前記プロセスカートリッジの一部を移動させることで、前記感光体と前記現像ローラを離間させることを特徴とする請求項1に記載の画像形成装置。 The contact / separation member includes a driving force receiving portion for receiving a driving force from the moving member, and a convex force.
Having a granting section,
The driving force receiving portion receives the driving force, the contact / separation member moves to the separation position, and the force applying portion contacts the frame of the process cartridge and moves a part of the process cartridge according to the movement. be to, images forming device according to claim 1, characterized in that to separate the developing roller and the photoreceptor.
前記接離部材は、前記第1色に対応した第1接離部材と、前記第2色に対応した第2接離部材を含むことを特徴とする請求項1乃至4の何れか1項に記載の画像形成装置。5. The contact / separation member according to claim 1, further comprising a first contact / separation member corresponding to the first color and a second contact / separation member corresponding to the second color. The image forming apparatus described.
前記本体開口を開閉するドアと、
前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能なユニットと、を有する画像形成装置であって、
前記ユニットは、
感光体と、前記感光体に接触して前記感光体上に形成された静電潜像を現像する為の現像ローラと、前記現像ローラに供給する現像剤を収容する現像剤収容部と、を有するプロセスカートリッジと、
前記プロセスカートリッジを取り外し可能に支持し、前記本体開口を介して、前記装置本体の内側に位置する内側位置と、前記装置本体の外側に位置する外側位置と、の間を移動可能な支持部材と、を有し、
前記ユニットは、
前記感光体と前記現像ローラとを接触させるための接触位置と、前記感光体と前記現像ローラとを離間させる為の離間位置と、を取り得る接離部材と、
前記装置本体からの駆動力を第1の方向に回転し伝達することで前記接離部材を、前記離間位置から前記接触位置に移動させる移動部材と、を有し、
前記移動部材は、前記第1の方向とは逆の第2の方向に回転することで、前記接離部材を、前記接触位置から前記離間位置に移動させ、前記接離部材が前記離間位置に移動したときに、前記感光体は前記現像ローラから離間し、
前記接離部材は、前記感光体の長手方向において前記感光体の片方の端部の外側にのみ設けられていることを特徴とする画像形成装置。 A device body with a body opening ;
A door that opens and closes the body opening;
Through said body opening, and an inner position located inside the apparatus main body, and an outer position located outside of the apparatus main body, met images forming apparatus that Yusuke a unit movable, the between And
The unit is
A photoconductor, a developing roller for developing an electrostatic latent image formed on the photoconductor in contact with the photoconductor, and a developer containing portion for containing a developer supplied to the developing roller. Having a process cartridge;
A support member that removably supports the process cartridge and is movable between an inner position located inside the apparatus main body and an outer position located outside the apparatus main body through the main body opening; Have
The unit is
A contact / separation member capable of taking a contact position for bringing the photosensitive member and the developing roller into contact with each other and a separation position for separating the photosensitive member and the developing roller;
A moving member that moves the contact / separation member from the separation position to the contact position by rotating and transmitting a driving force from the apparatus main body in a first direction;
The moving member rotates in a second direction opposite to the first direction, thereby moving the contact / separation member from the contact position to the separation position, and the contact / separation member is moved to the separation position. When moved, the photoreceptor is separated from the developing roller,
The image forming apparatus, wherein the contacting / separating member is provided only outside one end of the photoconductor in the longitudinal direction of the photoconductor.
前記駆動力受け部が駆動力を受け、前記接離部材が前記離間位置に移動し、該移動に応じて前記力付与部が前記プロセスカートリッジの枠体に当接し前記プロセスカートリッジの一部を移動させることで、前記感光体と前記現像ローラを離間させることを特徴とする請求項6に記載の画像形成装置。 The contact / separation member has a driving force receiving portion for receiving a driving force from the moving member, and a convex force applying portion,
The driving force receiving portion receives the driving force, the contact / separation member moves to the separation position, and the force applying portion contacts the frame of the process cartridge and moves a part of the process cartridge according to the movement. be to, images forming device according to claim 6, characterized in that to separate the developing roller and the photoreceptor.
ーラが当接することを特徴とする請求項7に記載の画像形成装置。
In response to the driving force receiving portion receiving driving force and the contact / separation member moving from the separation position to the contact position, the contact by the force applying portion is released, and the photosensitive member and the developing roller are released.
Images forming apparatus according to claim 7, characterized in that over La abuts.
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JP4689750B2 (en) * | 2008-09-29 | 2011-05-25 | キヤノン株式会社 | Electrophotographic image forming apparatus |
JP4995211B2 (en) | 2008-09-29 | 2012-08-08 | キヤノン株式会社 | Electrophotographic image forming apparatus |
JP4549426B2 (en) | 2008-09-29 | 2010-09-22 | キヤノン株式会社 | Electrophotographic image forming apparatus |
JP4831790B2 (en) * | 2009-07-31 | 2011-12-07 | キヤノン株式会社 | Color electrophotographic image forming apparatus |
JP5007755B2 (en) | 2010-06-07 | 2012-08-22 | ブラザー工業株式会社 | Image forming apparatus |
JP5761948B2 (en) * | 2010-09-14 | 2015-08-12 | キヤノン株式会社 | Electrophotographic image forming apparatus |
JP5264965B2 (en) * | 2010-09-22 | 2013-08-14 | キヤノン株式会社 | Electrophotographic image forming apparatus |
JP5386520B2 (en) * | 2011-01-31 | 2014-01-15 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
JP5807449B2 (en) * | 2011-08-29 | 2015-11-10 | ブラザー工業株式会社 | Image forming apparatus |
JP6128754B2 (en) * | 2012-05-21 | 2017-05-17 | キヤノン株式会社 | Image forming apparatus |
JP6071248B2 (en) * | 2012-05-22 | 2017-02-01 | キヤノン株式会社 | Electrophotographic image forming apparatus |
JP6041534B2 (en) * | 2012-05-28 | 2016-12-07 | キヤノン株式会社 | Image forming apparatus |
JP6202911B2 (en) * | 2012-09-07 | 2017-09-27 | キヤノン株式会社 | Image forming apparatus, process cartridge |
JP6513153B2 (en) * | 2012-09-07 | 2019-05-15 | キヤノン株式会社 | Process cartridge |
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2009
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