JP2018004940A5

JP2018004940A5 -

Info

Publication number: JP2018004940A5
Application number: JP2016131594A
Authority: JP
Filing date: 2016-07-01
Publication date: 2019-11-14
Anticipated expiration: 2036-07-01

Description

上記目的を達成するため、本発明の像加熱装置は、
記録材に形成された画像を加熱する像加熱装置であって、
記録材の搬送方向に対して直交する方向に配置された複数の発熱体を有するヒータであって、前記複数の発熱体によって複数の加熱領域を加熱するヒータと、
前記複数の発熱体へ供給する電力を制御し、前記複数の発熱体を個々に制御可能な制御部と、
を有し、
前記複数の発熱体の各々が加熱する加熱領域が、画像を含む第１領域、記録材中の画像
を含まない第２領域、記録材がない第３領域とある場合に、前記第１領域を加熱する際の発熱量、前記第２領域を加熱する際の発熱量、および前記第３領域を加熱する際の発熱量、が各々異なるように、前記制御部は前記複数の発熱体の各々の発熱量の制御を実行することを特徴とする。
上記目的を達成するため、本発明の画像形成装置は、
記録材に画像を形成する画像形成部と、
記録材に形成された画像を記録材に定着する定着部と、
を有する画像形成装置において、
前記定着部が上記像加熱装置であることを特徴とする。 In order to achieve the above object, the image heating apparatus of the present invention comprises:
An image heating apparatus for heating an image formed on a recording material,
A heater having a plurality of heating elements arranged in a direction orthogonal to the conveyance direction of the recording material, the heater heating a plurality of heating regions by the plurality of heating elements ;
A controller that controls power supplied to the plurality of heating elements, and is capable of individually controlling the plurality of heating elements ;
Have,
Heating region, each of the previous SL plurality of heating elements is heated, the first area containing an image, a second area containing no image in the recording material, if deemed to be replaced there is no recording medium third region, said first The controller generates the plurality of heating elements so that the amount of heat generated when heating one region, the amount of heat generated when heating the second region, and the amount of heat generated when heating the third region are different. and executes each of the heating value of control.
In order to achieve the above object, an image forming apparatus of the present invention includes:
An image forming unit for forming an image on a recording material;
A fixing unit for fixing the image formed on the recording material to the recording material;
In an image forming apparatus having
The fixing unit is the image heating device.

Claims

An image heating apparatus for heating an image formed on a recording material,
A heater having a plurality of heating elements arranged in a direction orthogonal to the conveyance direction of the recording material, the heater heating a plurality of heating regions by the plurality of heating elements ;
A controller that controls power supplied to the plurality of heating elements, and is capable of individually controlling the plurality of heating elements ;
Have,
Heating region, each of the previous SL plurality of heating elements is heated, the first area containing an image, a second area containing no image in the recording material, if deemed to be replaced there is no recording medium third region, said first The controller generates the plurality of heating elements so that the amount of heat generated when heating one region, the amount of heat generated when heating the second region, and the amount of heat generated when heating the third region are different. image heating apparatus and executes the control of each of the heating value of.

The control unit is configured to set a heat generation amount of at least one of the plurality of heating elements when the first region and the second region are heated to at least one of the plurality of heating elements. The image heating apparatus according to claim 1, wherein the image heating apparatus is controlled in accordance with a thermal history of a heating region of the heating element .

Information of the thermal history, at least, to claim 2, characterized in that it is obtained based on the heat history and the heat radiation history of the heating region to be heated by one or more heating elements of the plurality of heating elements The image heating apparatus described.

The heating history, according to claim 3, and the temperature of the heater, characterized Rukoto is obtained based on at least one of the supplied electric energy to one or more heating elements of the plurality of heating elements Image heating device.

The heat release history includes the presence / absence of passage of the recording material in the heating area heated by one or more heating elements of the plurality of heating elements, and power to one or more heating elements of the plurality of heating elements. period not supplied, an image heating apparatus according to claim 3, characterized in Rukoto is obtained based on at least one of time variation of the temperature of the heater.

Wherein, the amount of heat generated when heating the pre-Symbol third region, the first region and the second region
Any one of claims 1 to 5, characterized in that to perform the control of the heating amount of one or more heating elements of the plurality of heating elements such that the small amount of heat generation than the amount of heat generated when heating the The image heating apparatus according to one item.

In the case where the control unit continuously heats the plurality of recording materials, the heat generation amount of one or more of the plurality of heating elements is set to the heat generation amount of the third region in the subsequent recording material heating. By performing the control so that the heat generation amount of one or more of the plurality of heating elements is changed, after the preceding recording material passes through the heater, the subsequent recording material is applied to the heater. The image heating apparatus according to any one of claims 1 to 6 , wherein the amount of heat generated in the third region is a period before reaching the third region .

When the control unit continuously heats the plurality of recording materials, the amount of heat generated by one or more of the plurality of heat generating elements is determined by the first region or the heating region when the preceding recording material is heated. One or more of the plurality of heating elements are controlled by executing control so that the heat generation amount of the second region is reached and the heating amount of the subsequent recording material is the heat generation amount of the third region. The amount of heat generated by the heating element is the same as the amount of heat generated in the third region after the preceding recording material passes through the heater and before the subsequent recording material reaches the heater. an apparatus according to any one of claims 1 to 7, characterized.

The control unit may generate one or more of the plurality of heating elements until the first recording material reaches the heater at the latest after the heating of one or more of the plurality of heating areas is started. Control of the amount of heat generated by one or more of the plurality of heat generating elements is performed such that the amount of heat generated by the heating region heated by the body is the same as the amount of heat generated by the second region. The image heating apparatus according to claim 1 , wherein the image heating apparatus is an image heating apparatus.

The image heating device further provides a tube-like film to be rotated, while the film is rotating, comprising a film having an inner surface in contact with the heater, the image on the recording material is heated through said film An image heating apparatus according to any one of claims 1 to 9, wherein

An image forming unit for forming an image on a recording material;
A fixing unit for fixing the image formed on the recording material to the recording material;
In an image forming apparatus having
An image forming apparatus, wherein the fixing unit is the image heating apparatus according to claim 1.