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US 2019/0094784 A1Published application
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorRyuji Hamasaki
Life of this patent
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Abstract
An image forming apparatus includes a first unit, a second unit fixed to the first unit at a portion upstream of the first unit in a conveyance direction in which the sheet is conveyed, and an electric board. In the image forming apparatus, a disposition of the electric board is restricted by the first unit and the second unit.
Claims20
An image forming apparatus that forms an image on a sheet, the image forming apparatus comprising:
- a first unit;
- a second unit fixed to the first unit at a portion upstream of the first unit in a conveyance direction in which the sheet is conveyed;
- and
- an electric board that includes, on a same surface thereof, at least a first detecting portion that detects the sheet conveyed at the first unit and a second detecting portion that detects the sheet conveyed at the second unit,
- wherein the first unit includes a first unit restricting portion that restricts a disposition of the electric board,
- wherein the second unit includes a second unit restricting portion that restricts a disposition of the electric board,
- wherein the electric board includes a first board restricting portion that engages with the first unit restricting portion, and a second board restricting portion that engages with the second unit restricting portion,
- wherein in a state in which the first unit restricting portion and the first board restricting portion are engaged with each other, the disposition of the electric board is restricted in a parallel direction that is parallel to an optical axis connecting a light emitting portion and a light receiving portion included in the first detecting portion, and
- wherein in a state in which the second unit restricting portion and the second board restricting portion are engaged with each other, the disposition of the electric board is restricted in the parallel direction, and the disposition of the electric board is restricted in an orthogonal direction that is parallel to a portion in the conveyance direction and that is orthogonal to the optical axis.
6 more elements
An image forming apparatus that forms an image on a sheet, the image forming apparatus comprising:
- a first unit;
- a second unit fixed to the first unit at a portion upstream of the first unit in a conveyance direction in which the sheet is conveyed;
- and
- an electric board that includes, on a same surface thereof, at least a first detecting portion that detects the sheet conveyed at the first unit and a second detecting portion that detects the sheet conveyed at the second unit,
- wherein the first unit includes a first boss,
- wherein the second unit includes a second boss,
- wherein the electric board including a slit that engages with the first boss, and a hole that engages with the second boss,
- wherein in a state in which the first boss and the slit are engaged with each other, the disposition of the electric board is restricted in a parallel direction that is parallel to an optical axis connecting a light emitting portion and a light receiving portion included in the first detecting portion, and
- wherein in a state in which the second boss and the hole are engaged with each other, the disposition of the electric board is restricted in the parallel direction, and the disposition of the electric board is restricted in an orthogonal direction that is parallel to a portion in the conveyance direction and that is orthogonal to the optical axis.
6 more elements
Dependencies are inferred from the claim text.