Ricoh Company, Ltd.

Hitachi Koki Co., Ltd.

Hitachi Printing Solutions, Ltd.

Tetsuya Ohba

Sho Sawahata

Akitomo Kuwabara

Ken Onodera

Shuho Yokokawa

Hiroshi Ueno

Kunitomo Takahashi

Kahei Nakamura

Hironori Numata

Masaru Hoshina

Keisuke Yuasa

Yasushi Hashimoto

Shigeru Obata

Tsukasa Onose

Yuji Karikusa

Hidenori Iwanaga

Takeshi Terakado

Jun Ogino

Yasushi Kinoshita

Teiichiro Ishikawa

Jun Matsushima

A coating device includes a coating roller configured to rotate in a rotation direction to apply a treatment liquid onto a sheet at an application position, and a contacting member in contact with a peripheral surface of the coating roller at a position downstream of the application position in the rotation direction.

Coating device, liquid discharge apparatus, and printer

A web loader includes a web holder configured to hold a web, a traction member configured to hold the web holder and travel along a loading path of the web, a drive rotation body configured to drive the traction member to travel, and a limiter configured to limit a drive force applied to the drive rotation body.

Web loader, conveyor, dryer, and printer

A treatment liquid applicator includes a storage container and an outlet. The storage container stores a treatment liquid. The outlet is disposed at the storage container. The outlet includes an outlet opening through which the treatment liquid flows from the storage container to an outside of the storage container. The outlet extends from an inner wall surface of the storage container.

Treatment liquid applicator and printer including same

A drying device includes a drying section to dry a recording medium; a cooling section to cool the recording medium conveyed from the drying section; and a duct to expel air inside the drying section to outside the drying device. The duct includes a joint section where the air from the drying section meets air from the cooling section meet. The air from the drying section containing moisture and solvent medium is cooled in the duct.

Drying device and inkjet printer system including drying device

A treatment liquid coating apparatus includes a conveyance member to convey a recording medium; a coating roller, to apply treatment liquid on the recording medium, driven to rotate with the conveyance of the conveyance member; a pressure roller to press against the coating roller to hold the recording medium that is placed between the coating roller and the pressure roller; and a reciprocating mechanism to reciprocate the coating roller in a width direction of the recording medium during printing.

Coating apparatus and image forming system

A treatment liquid application device for use in an inkjet printer includes an application roller to apply a treatment liquid to a recording medium before an image is formed on the recording medium, a squeeze roller disposed below the application roller and to make a pressure-contact with the application roller, a treatment liquid supply unit to supply the treatment liquid to a nip part between the application roller and the squeeze roller, and a pressure roller disposed above the application roller and to cause the recording medium to make a pressure-contact with the application roller. When the application roller applies the treatment liquid to the recording medium, a position of the application roller is not restricted in approximate load directions of the squeeze roller and the pressure roller but is restricted in directions other than the approximate load directions.

Treatment liquid application device and image forming system

A pre-applying liquid applying apparatus for an inkjet printer is disclosed. The apparatus includes an applying roller which applies a treatment agent onto a recording medium before an image is formed; a squeeze roller which abuts against the applying roller; and a treatment agent supplying unit which supplies the treatment agent to a nip portion of the applying roller and the squeeze roller. A squeeze pressure adjusting mechanism is provided which adjusts an abutting force of the squeeze roller against the applying roller.

Pre-applying liquid applying apparatus for inkjet printer and image forming system

A powder container apparatus for containing a powder material removed from a cleaned body using a cleaning unit includes a casing having an opening at the top; a collecting bag made of a soft and freely deformable material detachably disposed within the casing, the collecting bag being configured to contain the powder material that is dropped via the opening of the casing; a displaced member disposed between the collecting bag and the casing and configured to be horizontally displaced by the collecting bag when the collecting bag is inflated by the powder material contained in the collecting bag; a displacement amount detecting unit configured to detect the displacement of the displaced member; and a collected amount detecting unit configured to determine a collected amount of the powder material in the collecting bag based on the horizontal displacement of the displaced member detected by the displacement amount detecting unit.

Powder container apparatus and image forming apparatus

A web printer has a buffer for adjusting the traveling position of the web under its slack status, a tension assigning unit for assigning fixed tension to the web delivered from the buffer, a device for detecting the traveling position of the web delivered from the tension assigning unit, a sew correction unit for adjusting the skew of the web according to the output from the detection device, and an image forming unit that forms images on the web.

Web printers

To stably transport an elongated web-like print paper so as not to move in the widthwise direction of the print paper, a first sensor is disposed at a first position in a paper conveying path and a second sensor at a second position downstream of the first position with respect to the paper conveying direction. Both the first and second sensors detect a position of a side edge or the print paper. A difference between the outputs from the first and second sensors is computed while taking a travel time of the edge detected by the first sensor to reach the second sensor into account. A main controller generates a drive signal based on the difference computed and controls a mechanism for moving the print paper in the widthwise direction in accordance with the drive signal.

Widthwise paper drift correction device for elongated web-like print paper

A printer capable of stably transporting a web at high speed and with a high accuracy has a printing unit ( ) for forming images on a web (W); a yet-to-be-printed web control means ( ) for controlling the traveling position and tension of the web at a position upstream in a web transporting direction of the printing unit; and an after-printed web control means ( ) for controlling the traveling position and tension of the web at a position downstream in the web transporting direction of the printing unit.

Printer for forming an image on a transported web

A release agent supplying member (21) is formed by release agent discharge portions (21a) for discharging release agent, and liquid level uniforming portions (21b) for uniforming a liquid level of the release agent discharged from the release agent discharge portions before supplying the release agent discharged from the release agent discharge portions to a subject to be coated.

Release agent supplying member, release agent supplying apparatus and

In a fixing apparatus for an electrophotographic apparatus which comprises a suction apparatus (14) for attracting a rear surface of recording material (6) which continues longitudinally and holds a toner image on a major surface thereof, a preheater (10) for preheating the recording material while adhering the recording material to the preheater by attracting force of the suction apparatus, and a pair of fixing rollers (11) formed by a heat roller and a pressure roller urged to each other, wherein the recording material is sandwiched and carried while being heated and pressurized by the heat roller and the pressure roller at a pressing portion therebetween thereby to fix the toner image on the major surface of the recording material, the fixing apparatus further comprises a recording material lifting apparatus (15) having a projection member (15a) movable relative to the surface of the preheater.

Growing community of inventors

Ibaraki, Japan

Tetsuya Ohba