Ricoh Company, Ltd.

Shoji Asanuma

Masahiro Ishida

Naoki Matsuda

Manabu Nonaka

Makoto Kikura

Yoshihide Ohta

Shinichiro Naruse

Yasuhiro Kawashima

Toshihiro Shimada

Hajime Nishida

Junichi Murano

Taku Kudoh

Hiroki Ishimitsu

Eiki Yoshimizu

Akihiro Fujita

Tsuyoshi Endo

Tomoya Tanaka

Kazumasa Ishikawa

Yohzoh Dohki

Akimitsu Obana

Kouta Hirakawa

Shigeyuki Ito

Taiga Shoen

Yasunobu Youda

Koji Watanabe

Kenji Kameyama

Shuji Tanaka

Tetsu Morino

Gakushi Tanaka

Junichi Kawase

Masatoshi Sakakitani

Hideki Sueoka

Yohzoh c/o Ricoh Elemex Corp Dohki

Shigeyuki c/o Ricoh Elemex Corp Ito

An image forming apparatus includes an image forming device; a fixing device; a first conveyance passage downstream from the fixing device in a sheet conveyance direction; a second conveyance passage downstream from the fixing device and communicating with the first conveyance passage; a sheet reversing member to reverse a conveyance direction of the sheet to the second conveyance passage; a divider to switch a route of the sheet between the first conveyance passage and the second conveyance passage; and a sheet detection sensor disposed downstream from the fixing device and upstream from the divider. The first conveyance passage includes a sheet outlet from which the sheet is ejected outside the apparatus. The apparatus further includes a ventilation passage communicating with an outside, to guide air from the outside to pass the sheet detection sensor and enter at least one of the first conveyance passage and the second conveyance passage.

Image forming apparatus

An image forming apparatus includes an apparatus body including a body side connector and a removable unit removably inserted in the apparatus body. The removable unit includes a unit side connector configured to engage with the body side connector in conjunction with insertion of the removable unit into and from the apparatus body in an insertion direction and disengage from the body side connector in conjunction with removal of the removable unit from the apparatus body in a removal direction. The apparatus further includes a first holder and a second holder. The first holder holds the body side connector and restrict the body side connector from moving in the insertion direction and the removal direction relative to the first holder. The second holder holds the first holder and restrict the first holder from moving in a direction different from the insertion direction and the removal direction.

A cabinet includes a first body side engagement and a second body side engagement mounted on a body and a first cover side engagement and a second cover side engagement mounted on a cover. Slide restriction faces of the first cover side engagement and the second cover side engagement come into contact with slide restriction faces of the first body side engagement and the second body side engagement, respectively, to restrict sliding of a slider when the first cover side engagement does not engage the first body side engagement. The slide restriction face of at least one of the first body side engagement and the first cover side engagement has a length that is greater than a length of the slide restriction face of other one of the first body side engagement, the first cover side engagement, the second body side engagement, and the second cover side engagement.

Cabinet, electronic device, and image forming apparatus

A sound absorbing device including a Helmholtz resonator having a projection part which includes a shape of protruding from an outer wall surface of a communicating part forming plate among the communicating part forming plate and a cavity forming member that are cavity part forming members forming a cavity part of the Helmholtz resonator, and surrounding an opening of a communicating part that causes the cavity part to communicate with the outside.

Sound absorbing device, electronic device, and image forming apparatus

An electronic device comprises: a shielding object that is arranged at least in a plurality of directions and shields noise; and a Helmholtz silencer that is arranged in a direction where the shielding object does not exist, the shielding object and the silencer being arranged with respect to a noise source causing noise such as a driving source that is arranged inside an apparatus body, wherein a neck portion of the Helmholtz silencer is directed to the noise source, a plurality of such Helmholtz silencers are provided to correspond to at least two kinds of frequencies, and installed number of the Helmholtz silencers corresponding to at least two kinds of the frequencies respectively, is made different depending on a distance from the noise source.

Electronic device and image forming apparatus

A sound absorbing device including a Helmholtz resonator also includes a projection part having a shape of protruding from an outer wall surface of a communicating part forming plate among the communicating part forming plate and a cavity forming member that are cavity part forming members forming a cavity part of the Helmholtz resonator, and surrounding an opening of a communicating part that causes the cavity part to communicate with the outside.

An inkjet recording apparatus provides an improved printing speed and improved convenience of use. A recording head discharges droplets of a recording liquid onto a paper so as to form an image on the paper. A belt conveyance mechanism has a belt onto which the paper is electrostatically attached. The paper attached onto the belt is conveyed in a direction perpendicular to a carding direction of the paper.

An image forming apparatus includes an apparatus body having an image forming part that forms an image by scanning a recording head discharging droplets of a recording liquid. A paper eject part is located in an upper portion of the apparatus body for stacking recording papers having the image formed thereon by the image forming part. An image reading part is located above the paper eject part. The apparatus body accommodates a maintenance and recovery mechanism and a waste discharge receiving part therein on both ends of a scanning range of the recording head. An outer covering of the apparatus body has a shape in which a portion corresponding to at least one of the maintenance and recovery mechanism and the waste discharge receiving part is recessed relative to other portions of the outer covering.

Image forming apparatus having a recessed part in outer covering

An image forming apparatus is provided with a openable/closable conveyance cover enabling exposure of a recording paper conveyance path on which recording paper is conveyed, on a top of a printer part carrying out recording on the recording paper, and has a conveyance cover lock part configured to fix a state in which the conveyance cover is opened, when recording paper jam occurs.

In an image forming device comprising an image forming part forming an image on a recording sheet, a sheet ejection part provided above the image forming part and stacking the recording sheet on which the image is formed by the image forming part, and an image reading part provided above the sheet ejection part and reading an image of an original document, the sheet ejection part is provided with a cover which is capable of being opened or closed to the sheet ejection part.

Image forming device

A head cleaner is disclosed that includes a blade that has a top face and wipes the nozzle face of a liquid droplet ejecting head that ejects liquid droplets from nozzles, and a cleaning part that cleans the top face of the blade.

Head cleaner and image forming apparatus

An inkjet recording apparatus includes a carriage having a printing head and moving in a main scanning direction, an exterior cover, and a detection part configured to detect an opening or closing state of the exterior cover. The carriage is returned to a home position when opening of the exterior cover is detected.

Growing community of inventors

Kanagawa, Japan

Shoji Asanuma