Kyocera Document Solutions Inc.

Shota Urase

Koji Fujii

Masahiro Nakao

Takuro Murata

Taro Kurahashi

Yoshitaka Tokoro

Ryota Maeda

Takafumi Nakagawa

Hirofumi Hagihara

A document conveying device () includes a sheet feeding tray (), a discharge tray () provided below the sheet feeding tray (), a feeding roller (), a conveying mechanism (), a lifting mechanism () which lifts and lowers the sheet feeding tray (), a discharge tray document sensor () which detects the document on the discharge tray (), and a control part () which controls the lifting mechanism () such that the document placed on the sheet feeding tray () is pressed against the feeding roller () when the conveying mechanism () conveys the document. The control part () controls the lifting mechanism () to lower the sheet feeding tray () by a larger amount in a case where the document is not detected by the discharge tray document sensor () when power is turned on than a case where the document is detected by the discharge tray document sensor ().

Document conveying device

Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.

Image reading apparatus, image forming apparatus, and method of controlling image reading apparatus

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Osaka, Japan

Shota Urase