Ricoh Company, Ltd.

Yuusuke Kumagawa

Hideyo Makino

Takayuki Nishimura

Satoshi Nakayama

Susumu Tateyama

Hiromitsu Fujiya

Tohru Matsumoto

Tomoaki Suga

Keisuke Yuasa

Yukifumi Kobayashi

Yuji Karikusa

Yasuyuki Sekino

Daiki Sekita

Kohsuke Yoshida

Kohtaroh Oda

Hiroki Terauchi

An image forming device, which is included in an image forming apparatus, includes an image reader, a sheet conveyance passage, a transparent body, an opposing body, and multiple curved opposing portions. The image reader is configured to read an image formed on a target object. The sheet conveyance passage is a passage through which the target object is conveyed. The transparent body is disposed between the sheet conveyance passage and the image reader. The opposing body is disposed facing the transparent body on a side opposite the image reader. The multiple curved opposing portions have respective outwardly curving reference planes. The multiple curved opposing portions are sequentially switched and located at a predetermined image reading position at which the multiple curved opposing portions face the transparent body with a gap through which the target object passes the predetermined image reading position.

Image reading device and image forming apparatus incorporating the image reading device

An image forming apparatus includes a conveyance path to convey a recording medium; an image forming device to form an image on the recording medium; a heating device to heat the recording medium; an image detector disposed downstream from the heating device in a direction of conveyance of the recording medium, to detect the image on the recording medium; and a protector projecting beyond the image detector toward the conveyance path. The protector is to protect the image detector; and a heat conductive holder holds the protector.

Image forming apparatus

An image forming apparatus includes an image forming device configured to form a first image on a first side of a recording medium and a second image on a second side of the recording medium, a position detector configured to detect respective positions of the first and second images, and a controller configured to perform, based on detection results obtained by the position detector, at least one of an image position correction by matching the first and second images and a magnification error correction by calculating and correcting a magnification error of one of the first and second images relative to the other. A program product used in the image forming apparatus includes a method of forming the first image and the second image, detecting the respective positions of the first and second images, and matching a position or a size of the first and second images.

Image forming apparatus and program product used in the image forming apparatus

Growing community of inventors

Kanagawa, Japan

Yuusuke Kumagawa