Ricoh Company, Ltd.

Kazuhisa Sudo

Yoshio Hattori

Masumi Sato

Takaaki Yanagisawa

Nobuyuki Koinuma

Tomotoshi Nakahara

Kouta Fujimori

Mikio Ishibashi

Junichi Matsumoto

Satoshi Muramatsu

Yukiko Iwasaki

Takashi Sakamaki

Reki Nakamura

Megumi Ohtoshi

Nobuo Iwata

Nobuo Kasahara

Tomoyuki Ichikawa

Masayuki Yamane

Kiyonori Tsuda

Ryuji Yoshida

Fumihito Itoh

Hirosato Amano

Hiroshi Sano

Shinichi Kawahara

Masafumi Yamada

Kazuhiko Yuki

Hideo Yoshizawa

Hideki Kimura

Seiji Terazawa

Kenzo Tatsumi

Nobuyuki Taguchi

Emi Kita

Takeroh Kurenuma

Satoshi Narumi

Takehide Mizutani

Tsuyoshi Imamura

Hiroshi Tateishi

Fumio Ogata

Tetsuo Noji

Keizo Chiba

Masanori Kawasumi

Toshihiro Sugiyama

Kazuyuki Sugihara

Junichi Terai

Kohsuke Yamamoto

Katsumi Masuda

Takuya Suganuma

Kiyotaka Sakai

Hiroyuki Nagashima

Akira Shinshi

Tomoko Takahashi

Masahiko Satoh

Shinji Tamaki

Mitsuru Takahashi

Shunji Katoh

Kazuosa Kuma

Shunichi Hashimoto

Masaharu Furuya

Takeshi Fukao

Hirokatsu Suzuki

Mugijirou Uno

Tsutomu Katoh

Masaki Sukesako

Hirohmi Tamura

Kazuya Saitoh

Keisuke Katoh

Hiroyuki Sugiyama

Koji Suzuki

Yoshinori Nakagawa

Hiroshi Nakai

Atsushi Kurokawa

Hiroaki Takahashi

Sadao Takahashi

Takeo Suda

Shin Kayahara

Ichiro Kadota

Shuji Tanaka

Shigekazu Enoki

Chikara Imai

Mitsuo Tanaka

Naoyuki Ozaki

Norimasa Sohmiya

Tokuya Ojimi

Tokuya Ohjimi

Atsushi Sanpe

Naomi Misago

Hirohisa Otsuka

Hiroki Atari

The image forming apparatus includes a latent image bearing member; a charging device charging the surface of the latent image bearing member; a latent image forming device forming an electrostatic latent image on the surface of the latent image bearing member; a developing device supplying toner to the electrostatic latent image to form a toner image; a cover film supplying device supplying a cover film to the surface of the latent image bearing member at a cover film supplying position located on an upstream side from the development position so that the toner image is formed on the cover film covering the surface of the latent image bearing member; and a cover film separating device separating the cover film bearing the toner image thereon from the surface of the image bearing member before the cover film bearing the toner image thereon reaches the cover film supplying position.

Electrophotographic image forming method and apparatus with a cover film supplying device

By using a black-image forming device, an abrasive pattern is formed on a sheet conveying belt so that toner is input to a contact section where a cleaning blade is in contact with the sheet conveying belt. After the toner is input to the contact section where the cleaning blade is in contact with the sheet conveying belt and then the sheet conveying belt makes one or more revolutions, a process control is performed in which Y, M, and C toner patterns and B toner pattern are transferred onto the sheet conveying belt.

Image forming apparatus

An image forming apparatus includes a first image carrier, a second image carrier, an intermediate transfer member disposed facing the second image carrier, a conveyance belt to transport a transfer sheet, disposed facing both the first image carrier and the intermediate transfer member, a first transfer member to transfer a first toner image formed on the first image carrier onto the transfer sheet, a second transfer member to transfer a second toner image formed on the second image carrier onto the intermediate transfer member, and a third transfer member disposed downstream from the second image carrier in a rotation direction of the intermediate transfer member, to transfer the second toner image from the intermediate transfer member onto the transfer sheet transported by the conveyance belt. The first image carrier and the intermediate transfer member inflect the conveyance belt at a first inflection angle and a second inflection angle, respectively.

Image forming apparatus preventing gaps between a conveyor belt and transfer sheet

An image forming apparatus includes first and second belt members, at least one color image carrier, a separate image carrier, a primary transfer member, a secondary transfer mechanism, a direct transfer member, a first image detector to detect positional deviation of transferred images from reference pattern images, and a controller to transfer the reference pattern images formed on the at least one color image carrier and the separate image carrier onto the first belt member or onto the second belt member, convey the reference pattern images to the first image detector, cause the first image detector to detect the reference pattern images, and adjust one or more image forming conditions of the image forming apparatus to prevent positional deviation of the transferred images from the reference pattern images based on detection results obtained by the first image detector.

Image forming apparatus utilizing both a transfer belt and a direct transfer member

An image forming apparatus includes at least one image carrier and a recording medium conveyor forming a transfer nip therebetween, a conveyance member disposed closest to the transfer nip on an upstream side of the transfer nip to convey the recording medium to the transfer nip, and a conveyance control mechanism to deactivate the conveyance member to stop providing a conveyance force to the recording medium after the leading edge of the recording medium has entered the transfer nip and before the trailing edge of the recording medium passes a point of force application and remaining in the inactive state until the recording medium passes the point of force application. The conveyance force remains unapplied to the recording medium from when the conveyance control mechanism deactivates the conveyance member to when the trailing edge of the recording medium passes the transfer nip.

A pasting apparatus includes a pasting member operative to paste a non-transparent medium onto an image-formed surface of a transparent medium; and a conveying member that conveys the non-transparent medium to the pasting member by electrostatic adsorption.

Pasting apparatus and image forming apparatus

An image forming apparatus includes multiple image forming units disposed adjacent to and horizontally aligned with each other to form respective single non-black color images, a first transfer member to sequentially transfer and overlay the respective single non-black color images thereon for forming a composite color image, a black image forming unit disposed separately from the multiple image forming units including a black image carrier and a black image developing unit, a second transfer member to transfer the black image from the black image forming unit onto a recording medium, a first cleaning unit to clean the surface of the black image carrier, and a second cleaning unit to clean the surface of the second transfer member. The black toner removed from the surface of the black image carrier is collected to the black image developing unit.

An insertion passageY for inserting a suction nozzleY fixed to an image forming apparatus is provided on a holderY, and a connecting passageY that connects the insertion passageY and a toner storage sectionY of the holderY is provided. After the toner sent from bottleY to the holderY falls towards the connecting passageY, the toner flows into the suction nozzleY through the connecting passageY and is then discharged out of the holderY. An airtightness between the insertion passageY and the suction nozzleY inserted into the insertion passageY is superior than an airtightness between the bottleY and the holderY engaged with the bottleY.

Toner cartridge, image forming apparatus, method of recycling toner cartridge

An image forming apparatus capable of using a recording medium having a transparent portion includes an image forming unit, a fixing unit, and an applicator. The image forming unit forms an image on a face of the recording medium. The fixing unit fixes the image, formed by the image forming unit, on the face of the recording medium. The applicator applies a non-transparent liquid to at least the fixed image on the face of the recording medium.

Image forming apparatus capable of forming glossy color image

An image forming apparatus includes a transfer device, a voltage applicator, a current sensor, and a discharge detector. The transfer device transfers a toner image from one surface to another by developing an electrical field across a transfer gap when provided with a transfer bias. The voltage applicator applies a stepped test voltage to the transfer device. The current sensor senses a current flowing to the transfer device during application of the test voltage the discharge detector detects an electrical discharge occurring in the transfer gap based on a rate of increase of the sensed current.

A sheet cutter cuts an adhesion sheet and includes a pair of blades including a first blade including a blade edge and a second blade opposing the first blade and including a blade edge. The pair of blades cuts a border of the adhesion sheet. The adhesion sheet is formed by adhering a first sheet, at least a part of which is transparent and bears a mirror image, to a non-transparent second sheet including an adhesive layer, to oppose the mirror image on the first sheet against the adhesive layer of the second sheet.

Sheet cutter and image forming apparatus including the sheet cutter

An information recording medium includes a transparent recording member and a substantially non-transparent member. The transparent recording member has at least one transparent area and a concavo-convex pattern on a first surface thereof while bearing a reverse toner image on a second surface thereof. The substantially non-transparent member is formed on the second surface of the transparent recording member.

Method of preparing information recording medium

An insertion passageY for inserting a suction nozzleY fixed to an image forming apparatus is provided on a holderY, and a connecting passageY that connects the insertion passageY and a toner storage sectionY of the holderY is provided After the toner sent from bottleY to the holderY falls towards the connecting passageY, the toner flows into the suction nozzleY through the connecting passageY and is then discharged out of the holderY An airtightness between the insertion passageY and the suction nozzleY inserted into the insertion passageY is superior than an airtightness between the bottleY and the holderY engaged with the bottleY.

Toner container, image forming apparatus, method of recycling toner container

A sheet laminator includes a bonding unit and a restricting unit. The bonding unit bonds a first sheet to a second sheet that includes an adhesive layer. The restricting unit restricts movement of any one of the first sheet and the second sheet thereby preventing bonding between the first sheet and the second sheet before the first sheet and the second sheet reach the bonding unit.

Sheet laminator, image forming apparatus, and sheet laminating method

In an image forming apparatus including an image forming unit that forms an image on a recording medium conveyed from a sheet feeding unit to obtain an image with photographic quality, at least a part of the recording medium has a transparent portion. When an image obtained by reversing an original image is transferred onto the transparent part, sheet-delivery rollers are operable in a direction in which a pressure onto the recording medium is reduced immediately after fixing of the image.

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Kanagawa, Japan

Kazuhisa Sudo