Fixing unit and image formation apparatus
AssigneeRicoh Company, Ltd.
InventorTakayuki Seki
Life of this patent
Estimating the term…
Abstract
The present invention is to provide a fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member, wherein the surface resistance value of the pressuring rotating member is in a range of 109Ω to 1011Ω.
Claims8
A fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, and which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member,
- wherein the surface resistance value of the pressuring rotating member is in a range of 109Ω to 1011Ω.
A fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, and which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member,
- wherein the fixing rotating member comprises an elastic layer formed around the mandrel thereof, and a mold releasing layer formed on the surface of the elastic layer, with the elastic layer thickness provided in a range of 0.1 mm to 0.5 mm, and the mold releasing layer thickness provided in a range of 50 μm or less.
A fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, and which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member,
- wherein the fixing rotating member comprises an elastic layer formed around the mandrel thereof, and a mold releasing layer formed on the surface of the elastic layer, with the elastic layer thickness provided in a range of 0.1 mm to 0.5 mm, the mold releasing layer thickness provided in a range of 50 μm or less, and the surface resistance value of the pressuring rotating member provided in a range of 109Ω to 1011Ω.
An image formation apparatus comprising,
- a fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, and which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member,
- wherein the surface resistance value of the pressuring rotating member is in a range of 109Ω to 1011Ω.
An image formation apparatus comprising,
- a fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, and which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member,
- wherein the fixing rotating member comprises an elastic layer formed around the mandrel thereof, and a mold releasing layer formed on the surface of the elastic layer, with the elastic layer thickness provided in a range of 0.1 mm to 0.5 mm, and the mold releasing layer thickness provided in a range of 50 μm or less.
An image formation apparatus comprising,
- a fixing unit which includes a fixing rotating member and a pressuring rotation member to be heated by a heat source while forcing with each other and rotating, and which fixes an image by having a recording material with an image developed by a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less passing through a forcing section of the fixing rotating member and the pressuring rotating member,
- wherein the fixing rotating member comprises an elastic layer formed around the mandrel thereof, and a mold releasing layer formed on the surface of the elastic layer, with the elastic layer thickness provided in a range of 0.1 mm to 0.5 mm, the mold releasing layer thickness provided in a range of 50 μm or less, and the surface resistance value of the pressuring rotating member provided in a range of 109Ω to 1011Ω.
An image formation apparatus using a developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less.
A developer containing a toner having a 5 to 10 μm volume average particle size, and 60 to 80 numerical % of particles of 5 μm or less.
Dependencies are inferred from the claim text.