Ricoh Company, Ltd.

Hideaki Nishimura

Hirokazu Ikenoue

Satoshi Kitaoka

Ken Onodera

Kenji Sato

Masaki Kato

Hiroshi Gotou

Sho Sawahata

Hiromi Sakaguchi

Wataru Sakamoto

Shun Saito

Toshihiro Yoshinuma

Yoshiaki Hoshino

Yukitoshi Tajima

Yoko Ishii

Junji Nakai

Yasuhisa Katoh

Yuuki Yokohama

Kiyoshi Yamaguchi

Masayuki Fukuoka

Kaori Toyama

Shuusuke Someno

Yoshiki Yanagawa

Takashi Tamai

Takafumi Sasaki

Amika Sagara

Sayuri Kojima

Mitsuya Matsubara

Masato Mitsuhashi

A drying device includes a contact heater unit to contact and heat a medium. The contact heater unit includes a plurality of heating members each having a curved contact face to contact the medium among plural heating members of the plurality of heating members to contact a first surface of the medium opposite a second surface of the medium on which liquid is applied. The plurality of heating members includes a first heating member and a plurality of second heating members. The first heating member has a maximum contact distance to contact the medium. The plurality of second heating members is disposed upstream from the first heating member in a direction of conveyance of the medium. Two heating members of the plurality of second heating members immediately upstream from the first heating member in the direction of conveyance of the medium contact the first surface of the medium.

Drying device and printing apparatus

An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.

Image forming apparatus and drying device for image forming apparatus

A blower includes a blowout port configured to blow air outside the blower, a channel member connected to the blowout port, the channel member configured to guide the air to the blowout port, a first heat insulation member configured to cover an inner wall of the channel member, and a second heat insulation member configured to cover an outer wall of the channel member.

Blower, dryer, and printer

A drying device includes a first-heating rotator configured to contact a sheet twice from different directions, and at least three second-heating rotators each configured to contact the sheet once. The at least three second-heating rotators are in a conveyance path configured to guide the sheet to contact the first-heating rotator again after the sheet contacts and passes the first-heating rotator.

Drying device and printer

A drying device includes a drier, a gas circulator, and a concentration adjuster. The drier warms a liquid composition on a drying target object. The gas circulator circulates a gas containing a volatile component of an organic solvent warmed and volatilized by the drier to reuse the gas for drying. The concentration adjuster adjusts a concentration of the volatile component reused.

Drying device, liquid discharge apparatus, and drying method

A gas blower includes a supply port, a chamber to which a gas is fed from the supply port, a nozzle communicating with an interior of the chamber to discharge the gas from the nozzle, a partition member disposed in the chamber to partition the interior of the chamber into a first space including the supply port and a second space not including the supply port, the partition member including at least one first opening through which the gas communicates between the first space and the second space, and an air flow guide including a plurality of second openings, disposed in the chamber between the second space and the nozzle. The supply port is disposed on one end in a longitudinal direction of the chamber.

Air blower, drying device, liquid discharge apparatus, and treatment-liquid application device

An image forming method includes applying an ink for the first time to a recording medium to form an image and rolling up the recording medium in a roll form, wherein the recording medium is continuous paper, the ink includes an organic solvent and a coloring material, and the image recorded matter has a tackiness power of from 80 to 110 nN.

Ink, inkjet recording method, ink cartridge, and image recording device

A drying device includes a plurality of blowers to blow air onto an object to be dried, the plurality of blowers being disposed along a direction of conveyance of the object to be dried, and a plurality of heaters to heat air inside the plurality of blowers. Each of the plurality of blowers includes an elongated nozzle arranged along a nozzle direction perpendicular to the direction of conveyance of the object to be dried, and an airflow generator to generate airflow to be blown from the elongated nozzle. The plurality of blowers includes a first blower including the airflow generator at a first end of the first blower in the nozzle direction and a second blower including the airflow generator at a second end of the second blower opposite the first end in the nozzle direction.

Drying device, liquid discharge apparatus, and treatment liquid applicator

An image forming method includes applying an ink for the first time to a recording medium to form an image and rolling up the recording medium in a roll form, wherein the recording medium is continuous paper, the ink includes water, an organic solvent, and a coloring material, and the image has a tackiness power of from 80 to 110 nN.

A droplet discharge head includes a nozzle plate provided with a nozzle opening which discharges an ink drop, an actuator substrate which forms a pressurized liquid chamber communicating with the nozzle opening, and is provided with a pressure generator changing a pressure in the pressured liquid chamber, and a common liquid chamber-forming substrate which forms a common liquid chamber to which ink which is supplied to the pressurized liquid chamber is supplied, the common liquid chamber-forming substrate includes a first plate made of a metal material, a second plate made of a resin material provided on one surface of the first plate, and a third plate made of a resin material provided on the other surface of the first plate, and the first plate, the second plate, and the third plate being integrally molded in a thickness direction.

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Kanagawa, Japan

Hideaki Nishimura