FIXING DEVICE AND IMAGE FORMING APPARATUS
First Claim
1. A fixing device, comprising:
- a fixing rotating member configured to fix a toner image on a recording medium, the fixing rotating member having an inner circumferential surface configured to receive lubricant;
a heater configured to heat the fixing rotating member;
a fixing pad positioned on an inner circumferential side of the fixing rotating member, and configured to press the fixing rotating member from the inner circumferential side;
a pressurizer disposed to face an outer circumferential surface of the fixing rotating member and to form a nip for fixing between the pressurizer and the fixing rotating member at a position facing the fixing pad; and
a surface layer disposed in a vicinity of a longitudinal end portion of a pressurizing surface of the fixing pad, and configured to direct lubricant applied to the inner circumferential surface of the fixing rotating member to a longitudinal central side of the pressurizing surface,wherein the surface layer is formed of an oil repellent member.
1 Assignment
0 Petitions
Accused Products
Abstract
A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
2 Citations
19 Claims
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1. A fixing device, comprising:
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a fixing rotating member configured to fix a toner image on a recording medium, the fixing rotating member having an inner circumferential surface configured to receive lubricant; a heater configured to heat the fixing rotating member; a fixing pad positioned on an inner circumferential side of the fixing rotating member, and configured to press the fixing rotating member from the inner circumferential side; a pressurizer disposed to face an outer circumferential surface of the fixing rotating member and to form a nip for fixing between the pressurizer and the fixing rotating member at a position facing the fixing pad; and a surface layer disposed in a vicinity of a longitudinal end portion of a pressurizing surface of the fixing pad, and configured to direct lubricant applied to the inner circumferential surface of the fixing rotating member to a longitudinal central side of the pressurizing surface, wherein the surface layer is formed of an oil repellent member. - View Dependent Claims (3, 4, 5, 6, 7)
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2. (canceled)
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8. A fixing device comprising:
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a rotating member configured to fix a toner image on a recording medium, the rotating member having an inner circumferential surface configured to receive lubricant; a heater disposed on an inner circumferential side of the rotating member, and configured to heat the recording medium from the inner circumferential side of the rotating member such that the rotating member is interposed between the heater and the recording medium in a pressed state; a pressurizer disposed to face an outer circumferential surface of the rotating member, and form a nip for fixing between the rotating member and the pressurizer at a position facing the heating member; and a surface layer disposed on a pressurizing surface of the heater, and arranged to direct lubricant applied to the inner circumferential surface of the rotating member to a longitudinal central side of the pressurizing surface, wherein the surface layer is formed of an oil repellent member. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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9. (canceled)
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16. A fixing method, comprising:
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fixing, by a fixing rotating member, a toner image on a recording medium, the fixing rotating member having an inner circumferential surface configured to receive lubricant; heating the fixing rotating member via a heater; pressing the fixing rotating member from an inner circumferential side of the fixing rotating member by a fixing pad positioned on the inner circumferential side; forming a nip for fixing between the pressurizer and the fixing rotating member at a position facing the fixing pad; and causing lubricant applied to the inner circumferential surface of the fixing rotating member to be directed, by a surface layer disposed in a vicinity of a longitudinal end portion of a pressurizing surface of the fixing pad, to a longitudinal central side of the pressurizing surface, wherein the surface layer is formed of an oil repellent member. - View Dependent Claims (18, 19)
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17. (canceled)
Specification