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US 7,689,154 B2Granted
Image forming apparatus having a heat fixing section and wet fixing section
AssigneeSharp Kabushiki Kaisha
InventorsKenji Asakura, Shinji Yamana
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a toner image forming section, an image carrying section, a transferring section, a recording material conveying section, a heat fixing section, a wet fixing section, and a recording material supply section. In the image forming apparatus, a surface temperature of fixing roller in the heat fixing section is detected by a temperature sensor and according to a detected result, the recording material conveying section selects either one of the heat fixing section and the wet fixing section as a conveyance destination for a recording material carrying an unfixed toner image.
Claims25
An image forming apparatus comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a heating section that heats and fuses the unfixed toner image on the image carrying section;
- a wet fixing section including an applying member that applies to the unfixed toner image on the image carrying section fixer fluid having an action of softening toner, and an attaching/detaching section that supports the applying member detachably with respect to the image carrying section;
- and
- a temperature detecting section that detects a temperature of the image carrying section.
3 more elements
An image forming apparatus comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a transfuse section including a transfuse member that transfers and fixes the unfixed toner image on the image carrying section onto a recording material;
- a heating section that heats and fuses the unfixed toner image on the transfuse member;
- a wet fixing section including an applying member that applies to the unfixed toner image on the transfuse member fixer fluid having an action of softening toner, and an attaching/detaching section that supports the applying member detachably with respect to the transfuse member;
- and
- a temperature detecting section that detects a temperature of the transfuse member.
4 more elements
An image forming apparatus comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a transferring section that transfers the unfixed toner image on the image carrying section onto a recording material;
- a heat fixing section including a heating section that heats and fuses the unfixed toner image, and a fixing member that fixes onto the recording material the unfixed toner image being heated and fused;
- a temperature detecting section that detects a temperature of the fixing member;
- a wet fixing section that applies to the unfixed toner image fixer fluid having an action of softening the toner, wherein the wet fixing section applies the fixer fluid to the unfixed toner image by way of the fixing member, and wherein the wet fixing section comprises:
- an applying member which applies the fixer fluid, wherein the applying member adjusts an application amount of the fixer fluid according to the result of temperature detected by the temperature detecting section, and
- a fixer fluid storage section which stores the fixer fluid and supplies the fixer fluid to the applying member.
5 more elements
An image forming apparatus comprising:
- a toner image forming section that forms a toner image composed of toner,
- an image carrying section that carries an unfixed toner image;
- a transferring section that transfers the unfixed toner image on the image carrying section onto a recording material;
- a heat fixing section including a heating section that heats and fuses the unfixed toner image, and a fixing member that fixes onto the recording material the unfixed toner image being heated and fused;
- a temperature detecting section that detects a temperature of the fixing member;
- a wet fixing section that applies to the unfixed toner image fixer fluid having an action of softening the toner, wherein the wet fixing section applies the fixer fluid to the unfixed toner image by way of the fixing member, and wherein the wet fixing section comprises:
- an applying member which applies the fixer fluid
- a fixer fluid storage section which stores the fixer fluid and supplies the fixer fluid to the applying member, and
- an attaching/detaching section which supports the applying member detachably with respect to the image carrying section or the fixing member, the attaching/detaching section bringing the applying member into contact with the image carrying section or the fixing member according to the result of temperature detected by the temperature detecting section, and wherein the applying member applies the fixer fluid in a state of being in contact with the image carrying section or the fixing member.
6 more elements
An image forming apparatus, comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a transferring section that transfers the unfixed toner image on the image carrying section onto a recording material;
- a heat fixing section including a heating section that heats and fuses the unfixed toner image, and a fixing member that fixes onto the recording material the unfixed toner image being heated and fused;
- a wet fixing section that applies to the unfixed toner image fixer fluid having an action of softening the toner;
- a temperature detecting section that detects a temperature of the fixing member;
- and
- a recording material conveying section which conveys the recording material for carrying the unfixed toner image to either the heat fixing section or the wet fixing section based on the temperature of the fixing member.
5 more elements
An image forming apparatus, comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a transferring section that transfers the unfixed toner image on the image carrying section onto a recording material;
- a heat fixing section including a heating section that heats and fuses the unfixed toner image, and a fixing member that fixes onto the recording material the unfixed toner image being heated and fused;
- a wet fixing section that applies to the unfixed toner image fixer fluid having an action of softening the toner;
- a temperature detecting section that detects a temperature of the fixing member;
- and
- a recording material conveying section which conveys the recording material for carrying the unfixed toner image to the heat fixing section by way of the wet fixing section, and wherein an amount of fixer fluid applied to the unfixed toner image is adjusted based on the temperature of the fixing member.
5 more elements
An image forming apparatus, comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a transferring section that transfers the unfixed toner image on the image carrying section onto a recording material;
- a heat fixing section including a heating section that heats and fuses the unfixed toner image, and a fixing member that fixes onto the recording material the unfixed toner image being heated and fused;
- a wet fixing section that applies to the unfixed toner image fixer fluid having an action of softening the toner, wherein the wet fixing section comprises a fixer fluid atomization section disposed away from the image carrying section or the fixing member, wherein the fixer fluid atomization section forms the fixer fluid into droplets having a diameter equal to or less than twice an average particle diameter of toner, and wherein the fluid atomization section sprays the droplets onto the image carrying section or the fixing member.
2 more elements
An image forming apparatus, comprising:
- a toner image forming section that forms a toner image composed of toner;
- an image carrying section that carries an unfixed toner image;
- a transferring section that transfers the unfixed toner image on the image carrying section onto a recording material;
- a heat fixing section including a heating section that heats and fuses the unfixed toner image, and a fixing member that fixes onto the recording material the unfixed toner image being heated and fused;
- a temperature detecting section that detects a temperature of the fixing member;
- and
- a wet fixing section that applies to the unfixed toner image fixer fluid having an action of softening the toner, wherein an amount of fixer fluid applied to the unfixed toner image is adjusted based on the temperature of the fixing member.
4 more elements
Dependencies are inferred from the claim text.