Canon Kabushiki Kaisha

Toshiba Tec Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Seiji Saito

Masaru Shimura

Naoki Ayata

Noboru Koumura

Yasushi Sato

Hidetoshi Suzuki

Kunitaka Ozawa

Keisuke Ishizumi

Shigeru Ohno

Kazuhiro Doda

Takashi Nakagiri

Ken Nakagawa

Kenji Kanari

Takamitsu Soda

Ichiro Endo

Tomoo Akizuki

Takashi Shimada

Michio Uchida

Hiroaki Sakai

Takaaki Akamatsu

Shigeru Hoashi

Takeshi Shinji

Takashi Shibuya

Hiroshi Nonoshita

Tatsuya Kobayashi

Ichiro Sado

Motoharu Fujii

Yasuhisa Shigehara

Shuuichi Tetsuno

Naoki Enomoto

Tomohiro Nakamori

Takeshi Kawamura

Hiroshi Takami

Yasuhisa Ishizawa

Shuichi Tetsuno

Shingo Ito

Toshihiko Takayama

Masaru Ohno

Shohei Ishio

Reiji Hirano

Tomoya Kuruma

Kenjiro Cho

Kenjiro Chyo

Shigeki Miura

Koji Kazuma

Koichi Suzuki

Kazushi Watanabe

Toshiyuki Karakama

Hideki Matsumoto

Hidekazu Matsuda

Ryo Matsumura

Jun Matsumoto

Atsushi Sakurai

Shigeru Matsuyama

Juji Kishimoto

Keisuke Samejima

Keizo Kojima

Taigan Shintani

According to one embodiment, a wireless tag communication device includes a controller configured to acquire, from a wireless tag on a sheet, position information indicating a position of the wireless tag on the sheet, identify the position of the wireless tag on the sheet from the acquired position information, and write information to the wireless tag according to the identified position of the wireless tag on the sheet.

Wireless tag communication device and wirelessly tagged sheet

An image forming apparatus includes: an image acquiring section configured to acquire an image formation target page image; a display control section configured to perform processing for displaying the page image in a preview display area; an operation-input acquiring section configured to acquire a first operation input for designating a first position in a designatable area and a second operation input for designating a second position in the preview display area; a determining section configured to determine which allocation setting area corresponding to which number of page images is designated as an area where processing for setting a number of page images allocated to one sheet is executed; and a setting section configured to apply setting of a number of page images allocated to one sheet to the page image for which the first operation input is performed.

Setting conditions for image processing in an image forming apparatus

An image forming apparatus includes a voltage adjustment portion having a voltage adjustment member connected to a contact member contacting an endless belt, the voltage adjustment portion changing a current flowing from a current supply member contacting the belt at a position different from a position, at which an image bearing member contacts the belt with respect to a rotating direction of the belt, to the voltage adjustment member via the belt according to a control signal input from a control portion outputting a control signal, thereby changing a size of a transfer potential to transfer a toner image borne by the image bearing member onto the belt at a part at which the belt contacts the image bearing member.

Image forming apparatus with voltage adjustment member

A voltage applying portion applies voltage to a current supply member, the current supply member being provided with primary transfer voltage to pass current through a contact portion contacting with a belt, thereby bringing the potential of the belt a primary transfer potential, and being provided with secondary transfer voltage so that a potential difference for secondary transfer is formed between the current supplying member and a support member while a recording material is nipped by the contact portion. The voltage applying portion changes the second transfer voltage so that the potential difference for the secondary transfer between the current supply member and the support member becomes smaller as a potential adjusting portion that maintains the potential of the support member at a prescribed sustaining potential in a variable manner in order to change a primary transfer potential reduces gradually the sustaining potential.

Image forming apparatus with adjustment of potential for secondary transfer

Image forming apparatus, image forming processing setting method, and recording medium having recorded thereon computer program for the image forming processing setting method

An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure.

Image forming apparatus

An image forming apparatus of the embodiments includes a display section, an input section, a controller, and a printing section. A plurality of first images in the form of sheets and a plurality of second images targeted for printing. The input section acquires information about a position designated by a user, the position being within a display region of the display section. The controller detects that one or two or more of the plurality of second images are selected on the basis of the information about the position. In response to release of the selected second image on one of the plurality of first images, the controller makes setting such that the released second image is categorized in one group, and makes print setting for each group. The printing section prints the second image on a sheet on the basis of the print setting made by the controller.

Image forming apparatus, print setting unit, and making print setting method

An image forming apparatus may include a first and second mode. In the first mode, the image forming apparatus uses a second charging member to charge toner that remains on an intermediate transfer member and then transfers the charged, remaining toner to an image carrier in a primary transfer portion. In the second mode, the image forming apparatus transfers the remaining toner adhered to the second charging member in the first mode to the intermediate transfer member. Also in a second mode, the image forming apparatus controls so that a surface potential of the image carrier that reaches the primary transfer portion at a timing at which the remaining toner transferred to the intermediate transfer member passes through the primary transfer portion has a same polarity as that of a surface potential of the image carrier in the first mode and also has an absolute value smaller than that thereof.

Image forming apparatus to transfer toner

According to one embodiment, a print setting apparatus includes an input section, a display section configured to display, on a same screen, an icon showing a tool to perform a process of binding sheets, a preview image showing a state of a sheet after printing, and one or plural area images displayed on the preview image, and a control section configured to change, when detecting that a specified coordinate from the input section is moved from a display area of the icon to a display area of the area image, the area image to an image showing a state after the process of binding the sheets is performed.

Tool for positioning an icon on a display

An image forming apparatus includes a drum for bearing a toner image; a rotatable belt onto which the toner image is to be transferred from the drum; a primary transfer member for primary transferring the toner image from the drum onto the belt; a secondary transfer member for secondary transferring the toner image from the belt onto a transfer material; and a charging member for electrically charging toner remaining on the belt. The image forming apparatus is capable of executing a belt cleaning mode in which the toner remaining on the belt is electrically charged, and a charging member cleaning mode in which the toner is transferred from the charging member onto the belt and then onto the drum. When the charging member cleaning mode is executed, the charging member is moved at least once from a belt separation position or away from a belt contact position.

An image forming apparatus includes an image bearing member, a transfer member, and a power supply unit that outputs a voltage to the transfer member. The power supply unit includes a first voltage generation circuit that includes a piezoelectric transformer driven at a drive frequency within a predetermined frequency area to output a first voltage having a predetermined polarity, and a second voltage generation circuit that outputs a second voltage with a polarity opposite to the predetermined polarity. In addition, a control unit controls the power supply unit to output a superposed voltage as a voltage having the predetermined polarity and corresponding to a voltage output from the piezoelectric transformer by driving the piezoelectric transformer at a driven frequency out of range of the predetermined frequency area, with the superposed voltage being a voltage in which the first voltage and the second voltage are superposed.

Power supply system and image forming apparatus

An image forming apparatus includes an image bearing member that bears a toner image, and a rotatable and endless intermediate transfer member, wherein a toner image is primarily transferred from the image bearing member to the intermediate transfer member in a first primary transfer part, and a toner image is secondarily transferred from the intermediate transfer member to the image bearing member in a secondary primary transfer part. In addition, a charge member is provided upstream of the first primary transfer part and downstream of the secondary primary transfer part in a rotation direction of the intermediate transfer member to charge residual toner remaining on the intermediate transfer member and not being transferred onto the transfer material in the secondary primary transfer part. The charge member includes a conductive roller whose surface layer is a foamed layer, and in a contact area in which the foamed layer contacts the intermediate transfer member, a space is formed between a part of a surface of the foamed layer and the intermediate transfer member, wherein a size of the space is larger than an average particle size of the residual toner.

Image forming apparatus having a charge member with a foamed layer

An image forming apparatus for forming image on a recording medium includes a photosensitive member, a motor, a belt, and a drive member to rotate the belt, the drive member including a driven coupling. The apparatus also includes a drive coupling to rotate by a driving force generated by the motor, the drive coupling being movable in an axial direction to take an engagement position at which the driving force is transmittable to the driven coupling, and a release position. The apparatus further includes a transfer member to transfer a toner image onto the recording medium or the belt, a voltage application unit to apply a voltage to the transfer member, and a control unit to cause the voltage application unit to apply the voltage to the transfer member after the drive coupling moves to the engagement position and the driving force is transmitted to the driven coupling.

Image forming apparatus having a controllable drive coupling

Growing community of inventors

Mishima, Japan

Seiji Saito