Ricoh Company, Ltd.

Tohoku Ricoh Co., Ltd.

Yusuke Nemoto

Daisuke Hasebe

Yukihiro Asano

Akira Saito

Masanori Takahashi

Hiroyuki Hiratsuka

Yoshiyuki Shishido

Yukitaka Watarai

Yoshihiko Kudoh

Katsuaki Ono

Susumu Shirauchi

Shin-ichi Shoji

A nozzle surface recovery device includes: a cap configured to cap a nozzle surface of a liquid discharge head; a guide configured to guide the cap in a first direction; and a first position adjuster configured to adjust a position of the cap with respect to the nozzle surface in a second direction orthogonal to the first direction, and the first position adjuster including: a first roller rotatable along the guide to move the cap in the first direction between a capping position at which the cap caps the nozzle surface and a retraction position at which the cap is retracted from the capping position; and a first adjustment plate coupled to the first roller, the first adjustment plate configured to adjust the position of the cap with respect to the guide in the second direction.

Nozzle surface recovery device, liquid discharge device, and inkjet printer

A plasma treatment apparatus includes a discharge electrode; a dielectric roller which includes a rotatable counter electrode and a rotatable dielectric, the dielectric being at least provided on a surface with which a treatment target comes into contact; an adjusting roller configured to adjust a contact amount of the treatment target with respect to the dielectric roller; and a control unit configured to control the adjusting roller.

Plasma treatment apparatus, printing apparatus, printing system, and method of producing printed matter

A recovery apparatus for recovering an ejection state of an ejection opening is disclosed. The recovery apparatus includes a cap member to seal an ejection surface of a droplet ejection head for ejecting a droplet from the ejection opening, and an absorber mounted in the cap member and to absorb ink attached to the ejection surface, so that the ink within a sealed space is suctioned and discharged. The absorber includes, when the ejection surface is sealed with the cap member, a first absorbing part to face the ejection surface at a first side where the ejection opening is provided through a first gap and a second absorbing part to face the ejection surface at a second side where the ejection opening is not provided through a second gap, wherein the first gap is greater than the second gap.

Recovery apparatus and image forming apparatus

Disclosed is an image forming apparatus that includes plural recording heads that eject liquid droplets and plural maintenance units that correspond to the plural recording heads. The plural maintenance units are capable of separately moving between opposed positions opposed to the plural recording heads and retracted positions not opposed to the plural recording heads, and the plural maintenance units are retracted into the retracted positions in postures different from postures at the opposed positions.

Image forming apparatus

An image forming apparatus includes a suction unit; a pressure unit configured to pressurize the inside of a supply channel extending from a liquid container to a recording head at a pressurizing position along the supply channel; an opening and closing unit configured to open and close the supply channel at a position downstream of the pressurizing position; and a control unit configured to cap a nozzle surface with a cap and suction ink from nozzles with the suction unit, to move the cap away from the nozzle surface after pressurizing the inside of the supply channel with the pressure unit to a pressure greater than or equal to atmospheric pressure, to wipe the nozzle surface with a wiping part after closing the supply channel with the opening and closing unit, and to open the supply channel with the opening and closing unit after wiping the nozzle surface.

An image-forming apparatus includes a head unit configured to include line-type recording heads for ejecting ink droplets, a transport mechanism disposed facing the recording head and configured to transport a sheet, a maintain-recovery mechanism disposed downstream from the transport mechanism in a direction in which the sheet is transported and configured to maintain and recover the line type recording heads, and a head drive mechanism configured to move the head unit between a position facing the transport mechanism and a position facing the maintain-recovery mechanism in the direction in which the sheet is transported.

A removing member which rotates while being in contact with the periphery of a rotating member for conveying a sheet of paper that rotates while being in contact with a printed side of a sheet of paper is provided. When undried ink on the printed side is transferred to the periphery of the rotating member at the time of conveying the printed sheet, the undried ink is thinly spread in a part where the periphery of the rotating member and the periphery of the removing member come into contact with each other and therefore dried quicker. The removing member removes a part of the ink from the periphery of the rotating member. Consequently, the printed sheet is prevented from being smudged by the re-transfer. Since double-side printing or multicolor printing can be started before the ink on the printed side of the printed sheet of paper is completely dried, the work efficiency of the double-side printing or multicolor printing is improved.

Growing community of inventors

Miyagi, Japan

Yusuke Nemoto