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US 7,890,014 B2Granted
Image forming apparatus with air blowing device for cooling rotary member
AssigneeCanon Kabushiki Kaisha
InventorKohei Koshida
Life of this patent
Estimating the term…
Abstract
An image forming apparatus has: a rotary member which conveys a sheet; a blowing device which blows a cooling air to cool the rotary member; and a blow-off member which blows the cooling air from the blowing device toward the rotary member. The cooling air is blown toward the portion of the rotary member serving as a downstream side of the rotary member and a blow-off direction of the cooling air is opposite to a rotating direction of the rotary member.
Claims10
An image forming apparatus comprising:
- a fixing device configured to fix an image on a sheet by heat;
- a pair of conveying rotary members configured to convey the sheet on which the image has been fixed by the fixing device in a sheet conveying direction while nipping the sheet at a nipping portion of the pair of conveying rotary members;
- a conveying path through which the sheet is conveyed by the pair of conveying rotary members;
- a blowing device configured to blow air;
- and
- an air duct configured to guide the air from the blowing device,
- wherein the air duct is configured (i) to guide air to flow onto the conveying path downstream of the nipping portion in the sheet conveying direction and (ii) to prevent air from flowing onto the conveying path upstream of the nipping portion in the sheet conveying direction, and
- a part of an end portion of the air duct in the air flowing direction faces an outer peripheral surface of one of the pair of conveying rotary members.
5 more elements
An image forming apparatus comprising:
- a fixing device configured to fix an image on a sheet by heat;
- a pair of conveying rotary members configured to convey the sheet on which the image has been fixed by the fixing device in a sheet conveying direction while nipping the sheet at a nipping portion of the pair of the conveying rotary members;
- a blowing device configured to blow air for cooling one of the pair of conveying rotary members and the sheet conveyed by the pair of conveying rotary members;
- and
- an air duct configured to guide the air from the blowing device to an outer peripheral surface of the one of the pair of conveying rotary members,
- wherein the air duct is configured (i) to guide air to flow onto the sheet downstream of the nipping portion in the sheet conveying direction and (ii) to prevent air from flowing onto the conveying path upstream of the nipping portion in the sheet conveying direction, and
- a part of an end portion of the air duct in the air flowing direction faces the outer peripheral surface of the one of the pair of conveying rotary members.
4 more elements
Dependencies are inferred from the claim text.