Ricoh Company, Ltd.

Yukihiko Natsui

Naoki Oikawa

Takashi Nakano

Joji Akiyama

Munehisa Fuda

Atsunori Yoshida

Masanobu Yoshida

Ryuhei Waragai

Masaru Ohba

Yusaku Matsumoto

Takashi Hirayama

Tsuyoshi Sawamoto

Takuya Tomobe

Kazuhiko Okuyama

A paper feeding device that includes, in a drive transmission mechanism to a paper feeding roller that delivers paper, a drive member provided on an apparatus body side as a member to transmit torque in a given direction for delivery of paper from a conveying motor to the paper feeding roller and a driven member provided on the paper feeding roller side. By relatively rotating the drive member and the driven member to form a coupling state of the members before an instruction to start the delivery of paper is output, the rotation of the paper feeding roller is started without a time lag when the instruction to start the delivery of paper is output.

Paper feeding device and image forming apparatus

An image forming apparatus includes a sheet bundle housing unit that houses recording sheets piled as a sheet bundle; a swing member having a sheet contact portion on one end side, and swinging between a projection position at which the sheet contact portion projects above a sheet placement surface of the housing unit and a non-projection position at which the sheet contact portion does not project above the sheet placement surface, the swing member moving from the projection position to the non-projection position by the sheet bundle; a sheet detection unit that detects the sheet bundle in the housing unit using the swing member; and an interlocking mechanism that moves the swing member to the non-projection position, regardless of presence or absence of the sheet bundle in the housing unit, by interlocking with the housing unit being pulled out from an apparatus body.

Image forming apparatus

Growing community of inventors

Kanagawa, Japan

Yukihiko Natsui