Image forming apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorYoshiya Tomatsu
Life of this patent
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Abstract
An image forming apparatus including: a first driven roller that forms a first nip portion with a driving roller; a second driven roller that forms a second nip portion with the driving roller at a downstream side of the first nip portion; a first transfer passage into which the sheet passed through the first nip portion and sent from the second nip portion is transferred by a forward rotation of the driving roller; a second transfer passage into which the sheet passed through the first nip portion is transferred by the forward rotation of the driving roller without passing through the second nip portion; and a third transfer passage into which the sheet is transferred by a reverse rotation of the driving roller after a rear end of the sheet has passed through the first nip portion by the forward rotation of the driving roller.
Claims8
An image forming apparatus comprising:
- an image forming unit that forms an image on a sheet;
- a driving roller that is provided on a downstream side of the image forming unit and rotates in forward and reverse directions;
- a first driven roller that is driven to rotate and forms a first nip portion in cooperation with the driving roller;
- a second driven roller that is driven to rotate and forms a second nip portion in cooperation with the driving roller, the second driven roller being provided on a downstream side of the first nip portion;
- a first transfer passage into which the sheet passed through the first nip portion and sent from the second nip portion is transferred by a forward rotation of the driving roller;
- a second transfer passage into which the sheet passed through the first nip portion is transferred by the forward rotation of the driving roller without passing through the second nip portion;
- and
- a third transfer passage into which the sheet passed through the first nip portion and nipped at the second nip portion is transferred by a reverse rotation of the driving roller after a rear end of the sheet has passed through the first nip portion by the forward rotation of the driving roller.
Dependencies are inferred from the claim text.