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US 2013/0094877 A1Published application
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsSatoshi Tsuji, Koichi Yamada
Life of this patent
Estimating the term…
Abstract
In a period that a first mode is executed, an image forming apparatus blows air at a first amount of flowing air in a period during which a recording material is conveyed on a conveying path and before a leading edge of the recording material reaches a fixing unit, and blows air at a second amount of flowing air smaller than the first amount in a period during which the recording material passes through the fixing unit. In a period that a second mode is executed, the image forming apparatus blows air at a third amount of flowing air larger than the second amount for at least a period during which a recording material on which an image is formed passes through the fixing unit.
Claims12
An image forming apparatus comprising:
- a fixing unit configured to heat a recording material on which a toner image is formed to fix the toner image on the recording material, the fixing unit arranged on a conveying path in which the recording material on which the image is form is conveyed;
- an air blowing unit configured to produce an air flow in a portion on a downstream side of the fixing unit in a conveying direction on the conveying path by blowing air;
- and
- a control unit configured to control an amount of flowing air of the air flow produced in the portion on the downstream side of the fixing unit in the conveying direction of the conveying path,
- wherein the image forming apparatus is capable of executing a first mode for forming an image on only a side of a recording material and discharging the recording material and a second mode for forming an image on both sides of a recording material and discharging the recording material, and
- wherein, in a period that the first mode is executed, with respect to a recording material on which an image is formed, the control unit controls the air blowing unit such that the amount of flowing air becomes a first amount of flowing air in a period during which the recording material is conveyed on the conveying path and before a leading edge of the recording material reaches the fixing unit, and controls the air blowing unit such that the amount of flowing air becomes a second amount of flowing air smaller than the first amount of flowing air in a period during which the recording material passes through the fixing unit, and in a period that the second mode is executed, the control unit controls the air blowing unit such that the amount of flowing air becomes a third amount of flowing air larger than the second amount of flowing air for at least a period during which a recording material on which an image is formed passes through the fixing unit.
3 more elements
An image forming apparatus comprising:
- a fixing unit configured to heat a recording material on which a toner image is formed to fix the toner image on the recording material, the fixing unit arranged on a conveying path in which the recording material on which the image is form is conveyed;
- an air blowing unit configured to produce an air flow in a portion on a downstream side of the fixing unit in a conveying direction on the conveying path by blowing air;
- and
- a control unit configured to control an amount of flowing air of the air flow produced in the portion on the downstream side of the fixing unit in the conveying direction of the conveying path,
- wherein the image forming apparatus is capable of forming an image only on a side of a recording material and discharging the recording material, and
- wherein, with respect to a recording material on which an image is formed, the control unit drives the air blowing unit in a period during which the recording material is conveyed on the conveying path and before a leading edge of the recording material reaches the fixing unit, stops driving of the air blowing unit in a period during which the recording material passes through the fixing unit, and drives the air blowing unit in a period during which the recording material is conveyed on the conveying path and after a trailing edge of the recording material has passed through the fixing unit.
3 more elements
An image forming apparatus comprising:
- a fixing unit configured to heat a recording material on which a toner image is formed to fix the toner image on the recording material, the fixing unit arranged on a conveying path in which the recording material on which the image is form is conveyed;
- an air blowing unit configured to produce an air flow in a portion on a downstream side of the fixing unit in a conveying direction on the conveying path by blowing air;
- and
- an air blowing unit configured to produce an air flow in a portion on a downstream side of the fixing unit in a conveying direction on the conveying path by blowing air;
- and
- wherein the image forming apparatus is capable of forming an image only on a side of a recording material and discharging the recording material, and
- wherein, while execution of an image forming job for performing image formation on a plurality of recording materials is in progress, the control unit, with respect to each recording material on which an image is formed, controls the air blowing unit such that the amount of flowing air becomes a first amount of flowing air in a period during which the recording material is conveyed on the conveying path and before a leading edge of the recording material reaches the fixing unit, controls the air blowing unit such that the amount of flowing air becomes a second amount of flowing air smaller than the first amount of flowing air in a period during which the recording material passes through the fixing unit, and controls the air blowing unit such that the amount of flowing air becomes the first amount of flowing air in a period after a trailing edge of the recording material has passed through the fixing unit and before a leading edge of a next recording material reaches the fixing unit.
4 more elements
Dependencies are inferred from the claim text.