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US 2010/0143013 A1Published application
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorTakahiro Azeta
Life of this patent
Estimating the term…
Abstract
In an image forming apparatus, when a conveyance unit is attached to a main body hosing, a conveyance path for conveying the sheet again to the image forming unit is constituted by the conveyance unit and an upper surface of the housing.
Claims13
An image forming apparatus comprising:
- an image forming unit forming an image on a sheet;
- a housing including therein the image forming unit;
- and
- a conveyance unit, which conveys the sheet with an image formed on a first surface by the image forming unit to the image forming unit again in order to form an image on a second surface of the sheet, and is attached to and removed from the upper portion of the housing,
- wherein an image can be formed on one side of the sheet in such a state that the conveyance unit is not attached to the housing, images can be formed on the both sides of the sheet in such a state that the conveyance unit is attached to the housing, and
- when the conveyance unit is attached to the housing, a conveyance path for conveying the sheet again to the image forming unit is constituted by the conveyance unit and an upper surface of the housing.
3 more elements
An image forming apparatus comprising:
- an image forming unit forming an image on a sheet;
- a housing including therein the image forming unit;
- and
- a conveyance unit, which conveys the sheet with an image formed on a first surface by the image forming unit to the image forming unit again in order to form an image on a second surface of the sheet, and is attached to and removed from the lower portion of the housing,
- wherein an image can be formed on one side of the sheet in such a state that the conveyance unit is not attached to the housing, images can be formed on the both sides of the sheet in such a state that the conveyance unit is attached to the housing, and
- when the conveyance unit is attached to the housing, a conveyance path for conveying the sheet again to the image forming unit is constituted by the conveyance unit and a lower surface of the housing.
3 more elements
Dependencies are inferred from the claim text.