JP2016048402A5 - - Google Patents
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- JP2016048402A5 JP2016048402A5 JP2016002593A JP2016002593A JP2016048402A5 JP 2016048402 A5 JP2016048402 A5 JP 2016048402A5 JP 2016002593 A JP2016002593 A JP 2016002593A JP 2016002593 A JP2016002593 A JP 2016002593A JP 2016048402 A5 JP2016048402 A5 JP 2016048402A5
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- image
- target temperature
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- temperature
- density information
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- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000000875 corresponding Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000009751 slip forming Methods 0.000 claims description 4
Description
上記目的を達成するために本発明にあっては、
画像データに基づいた画像を記録材に形成する画像形成部と、
前記画像データから濃度情報を取得する取得部と、
加熱部材と、前記加熱部材と共にニップ部を形成する加圧部材と、を有し、前記画像が形成された記録材を前記ニップ部で搬送しながら加熱して前記画像を記録材に定着する定着部と、
前記加熱部材の温度を検知する温度検知部と、
前記温度検知部の検知温度が目標温度になるように前記加熱部材に供給する電力を制御する制御部と、
を備える画像形成装置において、
前記制御部は、記録材毎に各々の記録材に形成する前記画像の前記濃度情報に応じた前記目標温度を設定し、
連続的に複数の記録材に前記画像を形成するときに、前記取得部は、1枚目からN枚目(N≧2)までの記録材に形成する前記画像の前記濃度情報を取得し、k枚目(2≦k≦N)の前記画像の濃度がk−1枚目の前記画像の濃度よりも高い場合、前記制御部は、前記k−1枚目の前記目標温度を前記k−1枚目の前記濃度情報に応じた前記目標温度よりも高く且つ前記k枚目の前記濃度情報に応じた前記目標温度よりも低い温度に設定し、前記k枚目の前記目標温度を前記k枚目の前記濃度情報に応じた前記目標温度に設定することを特徴とする。
また、上記目的を達成するために本発明にあっては、
画像データに基づいた画像を記録材に形成する画像形成部と、
前記画像データから濃度情報を取得する取得部と、
加熱部材と、前記加熱部材と共にニップ部を形成する加圧部材と、を有し、前記画像が形成された記録材を前記ニップ部で搬送しながら加熱して前記画像を記録材に定着する定着部と、
前記加熱部材の温度を検知する温度検知部と、
前記温度検知部の検知温度が目標温度になるように前記加熱部材に供給する電力を制御する制御部と、
を備える画像形成装置において、
前記制御部は、記録材毎に各々の記録材に形成する前記画像の前記濃度情報に応じた前記目標温度を設定し、
連続的に複数の記録材に前記画像を形成するときに、前記取得部は、1枚目からN枚目(N≧3)までの記録材に形成する前記画像の前記濃度情報を取得し、k枚目(3≦k≦N)の前記画像の濃度がj枚目(1≦j<k−1)からk−1枚目のいずれの前記画像の濃度よりも高いもしくは低い場合、前記制御部は、前記j枚目から前記k−1枚目の前記目標温度を前記k枚目に近づく程、前記k枚目の前記濃度情報に応じた前記目標温度に近い温度に設定し、前記k枚目の前記目標温度を前記k枚目の前記濃度情報に応じた前記目標温度に設定することを特徴とする。
In order to achieve the above object, the present invention provides:
An image forming unit for forming an image based on image data on a recording material;
An acquisition unit for acquiring density information from the image data;
A fixing unit that includes a heating member and a pressure member that forms a nip portion together with the heating member, and heats the recording material on which the image is formed while conveying the nip portion to fix the image on the recording material. And
A temperature detector for detecting the temperature of the heating member;
A control unit that controls electric power supplied to the heating member such that the temperature detected by the temperature detection unit becomes a target temperature;
In an image forming apparatus comprising:
The control unit sets the target temperature according to the density information of the image to be formed on each recording material for each recording material,
When the image is continuously formed on a plurality of recording materials, the acquisition unit acquires the density information of the image formed on the first to Nth recording materials (N ≧ 2), When the density of the kth image (2 ≦ k ≦ N) is higher than the density of the k−1th image, the control unit sets the k−1th target temperature to the k− The temperature is set to be higher than the target temperature corresponding to the density information of the first sheet and lower than the target temperature corresponding to the density information of the kth sheet, and the target temperature of the kth sheet is set to the k The target temperature is set according to the density information of the first sheet .
In order to achieve the above object, in the present invention,
An image forming unit for forming an image based on image data on a recording material;
An acquisition unit for acquiring density information from the image data;
A fixing unit that includes a heating member and a pressure member that forms a nip portion together with the heating member, and heats the recording material on which the image is formed while conveying the nip portion to fix the image on the recording material. And
A temperature detector for detecting the temperature of the heating member;
A control unit that controls electric power supplied to the heating member such that the temperature detected by the temperature detection unit becomes a target temperature;
In an image forming apparatus comprising:
The control unit sets the target temperature according to the density information of the image to be formed on each recording material for each recording material,
When the image is continuously formed on a plurality of recording materials, the acquisition unit acquires the density information of the image formed on the first to Nth recording materials (N ≧ 3), When the density of the k-th image (3 ≦ k ≦ N) is higher or lower than the density of any of the j-th image (1 ≦ j <k−1) to the k−1th image, the control The unit sets the target temperature of the (k−1) th sheet from the jth sheet to a temperature closer to the target temperature according to the density information of the kth sheet as the kth sheet approaches. The target temperature of the first sheet is set to the target temperature corresponding to the density information of the kth sheet.
Claims (3)
前記画像データから濃度情報を取得する取得部と、An acquisition unit for acquiring density information from the image data;
加熱部材と、前記加熱部材と共にニップ部を形成する加圧部材と、を有し、前記画像が形成された記録材を前記ニップ部で搬送しながら加熱して前記画像を記録材に定着する定着部と、A fixing unit that includes a heating member and a pressure member that forms a nip portion together with the heating member, and heats the recording material on which the image is formed while conveying the nip portion to fix the image on the recording material. And
前記加熱部材の温度を検知する温度検知部と、A temperature detector for detecting the temperature of the heating member;
前記温度検知部の検知温度が目標温度になるように前記加熱部材に供給する電力を制御する制御部と、A control unit that controls electric power supplied to the heating member such that the temperature detected by the temperature detection unit becomes a target temperature;
を備える画像形成装置において、In an image forming apparatus comprising:
前記制御部は、記録材毎に各々の記録材に形成する前記画像の前記濃度情報に応じた前記目標温度を設定し、The control unit sets the target temperature according to the density information of the image to be formed on each recording material for each recording material,
連続的に複数の記録材に前記画像を形成するときに、前記取得部は、1枚目からN枚目(N≧2)までの記録材に形成する前記画像の前記濃度情報を取得し、k枚目(2≦k≦N)の前記画像の濃度がk−1枚目の前記画像の濃度よりも高い場合、前記制御部は、前記k−1枚目の前記目標温度を前記k−1枚目の前記濃度情報に応じた前記目標温度よりも高く且つ前記k枚目の前記濃度情報に応じた前記目標温度よりも低い温度に設定し、前記k枚目の前記目標温度を前記k枚目の前記濃度情報に応じた前記目標温度に設定することを特徴とする画像形成装置。When the image is continuously formed on a plurality of recording materials, the acquisition unit acquires the density information of the image formed on the first to Nth recording materials (N ≧ 2), When the density of the kth image (2 ≦ k ≦ N) is higher than the density of the k−1th image, the control unit sets the k−1th target temperature to the k− The temperature is set to be higher than the target temperature corresponding to the density information of the first sheet and lower than the target temperature corresponding to the density information of the kth sheet, and the target temperature of the kth sheet is set to the k An image forming apparatus, wherein the target temperature is set according to the density information of the first sheet.
前記画像データから濃度情報を取得する取得部と、An acquisition unit for acquiring density information from the image data;
加熱部材と、前記加熱部材と共にニップ部を形成する加圧部材と、を有し、前記画像が形成された記録材を前記ニップ部で搬送しながら加熱して前記画像を記録材に定着する定A heating member, and a pressure member that forms a nip portion together with the heating member, and the recording material on which the image is formed is heated while being conveyed in the nip portion to fix the image on the recording material.
着部と、The kimono,
前記加熱部材の温度を検知する温度検知部と、A temperature detector for detecting the temperature of the heating member;
前記温度検知部の検知温度が目標温度になるように前記加熱部材に供給する電力を制御する制御部と、A control unit that controls electric power supplied to the heating member such that the temperature detected by the temperature detection unit becomes a target temperature;
を備える画像形成装置において、In an image forming apparatus comprising:
前記制御部は、記録材毎に各々の記録材に形成する前記画像の前記濃度情報に応じた前記目標温度を設定し、The control unit sets the target temperature according to the density information of the image to be formed on each recording material for each recording material,
連続的に複数の記録材に前記画像を形成するときに、前記取得部は、1枚目からN枚目(N≧3)までの記録材に形成する前記画像の前記濃度情報を取得し、k枚目(3≦k≦N)の前記画像の濃度がj枚目(1≦j<k−1)からk−1枚目のいずれの前記画像の濃度よりも高いもしくは低い場合、前記制御部は、前記j枚目から前記k−1枚目の前記目標温度を前記k枚目に近づく程、前記k枚目の前記濃度情報に応じた前記目標温度に近い温度に設定し、前記k枚目の前記目標温度を前記k枚目の前記濃度情報に応じた前記目標温度に設定することを特徴とする画像形成装置。When the image is continuously formed on a plurality of recording materials, the acquisition unit acquires the density information of the image formed on the first to Nth recording materials (N ≧ 3), When the density of the k-th image (3 ≦ k ≦ N) is higher or lower than the density of any of the j-th image (1 ≦ j <k−1) to the k−1th image, the control The unit sets the target temperature of the (k−1) th sheet from the jth sheet to a temperature closer to the target temperature according to the density information of the kth sheet as the kth sheet approaches. The image forming apparatus, wherein the target temperature of the first sheet is set to the target temperature corresponding to the density information of the kth sheet.
Priority Applications (1)
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JP2016002593A JP6180555B2 (en) | 2016-01-08 | 2016-01-08 | Image forming apparatus |
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JP2016002593A JP6180555B2 (en) | 2016-01-08 | 2016-01-08 | Image forming apparatus |
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JP2011178025A Division JP5871515B2 (en) | 2011-08-16 | 2011-08-16 | Image forming apparatus and density information acquisition method |
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JP2016048402A JP2016048402A (en) | 2016-04-07 |
JP2016048402A5 true JP2016048402A5 (en) | 2016-05-26 |
JP6180555B2 JP6180555B2 (en) | 2017-08-16 |
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JP6800667B2 (en) * | 2016-09-13 | 2020-12-16 | キヤノン株式会社 | Image forming device |
JP7073217B2 (en) * | 2018-07-18 | 2022-05-23 | キヤノン株式会社 | Image heating device and image forming device |
JP7286462B2 (en) | 2019-07-30 | 2023-06-05 | キヤノン株式会社 | image forming device |
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JPS6126071A (en) * | 1984-07-17 | 1986-02-05 | Canon Inc | Image formation controller |
JPH10288911A (en) * | 1997-04-15 | 1998-10-27 | Tec Corp | Electrophotographic device |
JP2001083836A (en) * | 1999-09-16 | 2001-03-30 | Canon Inc | Image forming device |
US6836626B2 (en) * | 2002-06-19 | 2004-12-28 | Hewlett-Packard Development Company, L.P. | Fuser temperature control based on image density |
JP2004061926A (en) * | 2002-07-30 | 2004-02-26 | Funai Electric Co Ltd | Image forming apparatus and laser printer |
JP2004184696A (en) * | 2002-12-03 | 2004-07-02 | Ricoh Co Ltd | Image forming apparatus |
JP2005043821A (en) * | 2003-07-25 | 2005-02-17 | Murata Mach Ltd | Image forming apparatus |
JP2005321672A (en) * | 2004-05-11 | 2005-11-17 | Kyocera Mita Corp | Image forming apparatus |
JP5871515B2 (en) * | 2011-08-16 | 2016-03-01 | キヤノン株式会社 | Image forming apparatus and density information acquisition method |
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