Canon Kabushiki Kaisha

Ken-ichiro Isobe

Takayuki Mizuta

Takehito Osada

Michio Sugano

A sheet conveying apparatus includes a guide unit to guide a sheet conveyed by a sheet conveyance portion. The guide unit includes a first movable guide, a second movable guide, and a linking mechanism having an intermediate member through which the first and second movable guides are linked movably with respect to each other. A conveyance regulating portion is supported by the intermediate member and guides the sheet passing through a first conveyance path toward the sheet conveyance portion and guides the sheet that is switched back by the sheet conveyance portion toward a second conveyance path.

Sheet conveying apparatus and image forming apparatus

A sheet conveying apparatus includes a cover unit opened and closed with respect to an apparatus body and a guide unit including first and second movable guides respectively movable with respect to the apparatus body. A first conveyance path is formed between the first guide portion and the first movable guide, and a second conveyance path is formed between the second guide portion and the second movable guide. The guide unit is provided with a linking mechanism including an intermediate member for linking the first and second movable guides. The linking mechanism coordinates movements of the first and second movable guides such that the first and second movable guides are respectively moved away from the first and second guide portions along with an opening movement of the cover unit with respect to the apparatus body.

An image forming apparatus may comprise the following elements. A stacking unit in which a sheet is stacked. A conveyance unit conveys the sheet. A time-counting unit counts a conveyance time from when the conveyance unit starts to convey the sheet until the sheet arrives at a predetermined position on a conveyance path. A determination unit determines that over stacking has occurred, if the conveyance time of the sheet exceeds a first over stacking threshold value.

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Yokohama, Japan

Ken-ichiro Isobe