Canon Kabushiki Kaisha

Other

Yoshikazu Sasago

Shinya Noda

Isao Ikemoto

Kazushi Watanabe

Kazumi Sekine

Tadayuki Tsuda

Kazunori Kobayashi

Toshiyuki Karakama

Yoshiyuki Batori

Haruhisa Oshida

Masanari Morioka

Takashi Akutsu

Shinichi Sasaki

Ryozo Yanagisawa

Hiroshi Takarada

Takeo Shoji

Hiroyuki Shirai

Kazuma Shimizu

Yasushi Shimizu

Teruhiko Sasaki

Yoshiya Nomura

Ichiro Terada

Hiroyuki Adachi

Shigeo Miyabe

Makoto Tanaka

Morikazu Mizutani

Kazuo Shishido

Kazuhiko Ishiwata

Kanji Yano

Atsushi Nishibata

Katsushi Koike

Minoru Sato

Kanji Yokomori

Masanobu Saito

Yoshimasu Yamaguchi

Provided are an information processing apparatus and a method, and in particular, an information processing apparatus and a method for employing a 3D model generated using 3D-CAD. When attribution information (a distance, an angle, the diameter of a hole, a dimensional tolerance, etc.) is added to a 3D model, as the amount of additional information is increased, it becomes difficult for the geometry of a 3D model and the attribution information to be seen on a display screen. The visual direction (the attribution allocation plane) is set for a generated 3D model, and attribution information is entered that is to be positioned on an attribution allocation plane. By designating the attribution allocation plane, the designated attribution information, together with the geometry of the 3D model, is displayed on the screen.

Information processing apparatus and information processing method

The present invention relates to information processing apparatus and methods and, more particularly, to information processing apparatus and methods making use of a 3D model (3D shape) prepared by 3D-CAD. For adding attribute information (distances, angles, hole diameters, dimensional tolerances, etc.) to the 3D model, it becomes harder to recognize the shape of the 3D model and the attribute information on a display screen with increase in the added information. Thus each visual axis direction (attribute arrangement plane) is set for the 3D model prepared and attribute information is inputted so as to be opposed to the attribute arrangement plane thus set. When the set attribute arrangement plane is then specified, the opposed attribute information, together with the shape of the 3D model set, is displayed on the display screen. Names of attribute arrangement planes are arranged so as to avoid overlap thereof on the display screen, thereby suppressing deterioration of visibility. Each attribute arrangement plane has a frame and the attribute information is placed within the frame.

Three-dimensional CAD attribute information presentation

Conventionally, in the process for inspecting a molded product, a measurement point indicating a portion to be measured is defined by using attribution information, such as a tolerance difference, and a measurement program is created, or a manual measurement instrument is employed to conduct the measurement. According to the invention, provided is an information processing apparatus supporting general measurement operations, including those for manual measurements, by using attribution information, such as a dimension and a dimensional tolerance, that is added to a CAD model generated by a CAD apparatus.

Information processing apparatus and method

An information processing apparatus, method and computer readable medium provide for sorting attribution information of a 3D model into a plurality of groups; selecting a group from the plurality of groups; and selectively displaying a part of the attribution information corresponding to the selected group with the 3D model in a virtual 3D space.

A cartridge is provided in which an electrifying roller is driven in a counter direction to photosensitive member drum and which has a toner remaining amount detector and a memory, and the electrifying roller is driven by an electrifying roller drive motor. The electrifying roller optimum rotation speed stored in the memory in advance is accessed when the toner remaining amount reaches a predetermined value, and the electrifying roller rotation speed is changed in accordance with the electrifying roller optimum rotation speed. The accumulated distance by which the photosensitive member drum and the electrifying roller abrasively slide is written in the memory, and when the toner remaining amount reaches a predetermined value, the electrifying roller optimum rotation speed corresponding to the abrasive sliding distance is accessed. The electrifying roller rotation speed is changed in accordance with the electrifying roller optimum rotation speed.

IMAGE FORMING APPARATUS ROTATIONALLY DRIVING IMAGE BEARING MEMBER AND CONTACT ELECTRIFYING MEMBER OF PROCESS CARTRIDGE AND PROCESS CARTRIDGE COMPRISING IMAGE BEARING MEMBER AND CONTACT ELECTRIFYING MEMBER

An electrophotographic image forming apparatus, capable of detachably mounting a process cartridge, for forming an image on a recording medium includes, a mounting portion for detachably mounting the process cartridge. The apparatus also includes a transporting member for transporting the recording medium, a controlling portion for controlling the operation of the electrophotographic image forming apparatus to execute the reading and/or the writing of the information to a storing member of the cartridge; and an exposing portion for exposing an electrophotographic photosensitive body of the cartridge to light. The electrophotographic image forming apparatus is configured to execute a charge elimination operation of the electrophotographic photosensitive body if the electrophotographic image forming apparatus determines that the process cartridge is in an unused state on the basis of the information from the storing member. As a result, an electrophotographic image forming apparatus and a process cartridge, both being capable of preventing the occurrence of image defects such as a black streak in an initial state of the process cartridge, are provided.

PROCESS CARTRIDGE COMPRISING STORING MEANS FOR STORING INFORMATION CONTROLLING A CHARGE ELIMINATION OPERATION AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING CONTROLLING MEANS CONTROLLING A CHARGE ELIMINATION OPERATION

A developing device is detachably attachable to an image forming apparatus, which has a developer carrying member, a developer regulating member, a conductive support member, and a driving gear. A first electrode member is provided at a driving side of the developer carrying member. A developing voltage is applied to the first electrode, and which electrically communicates with the conductive support member. A second electrode member electrically communicates between the conductive support member and a nondriving side of the developer carrying member.

Developing device to which developing voltage is applied from non-driving side

A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with a developer; wherein the developer carrying member includes a first cylindrical portion and a second cylindrical portion provision data an end of the first cylindrical portion and supported by bearing portion; a first electroconductive portion extended from an outside of the second cylindrical portion into an inside and electrically connected to an electroconductive portion outside the developing device with a gap from an inner surface of the second cylindrical portion; a second electroconductive portion contacted to an inner surface of the first cylindrical portion and rotatable with the first cylindrical portion and slidable on the first electroconductive portion; wherein a developing bias is applied to a first cylindrical portion through the first and second electroconductive portion from the outside electroconductive portion of the developing device.

Developing device and electric energy supply part for applying developing bias voltage

A developing device includes a frame; a developer carrying member including a first cylindrical portion and a second cylindrical portion provided at an end of the first cylindrical portion; and a magnet provided in the developer carrying member, extending from inside of the developer carrying member to outside thereof. A first electroconductive portion is supported on the magnet; and a second electroconductive portion is electrically connected with an inner surface of the first cylindrical portion and in slidable contact with the first electroconductive portion. A third electroconductive portion includes a first contact portion electrically connected with the first electroconductive portion and a second contact portion. The third electroconductive portion is electrically connected with an electrical contact of a main assembly of an image forming apparatus so that a developing bias is applied to the developer carrying member.

Developing device, process cartridge and electric energy supply part to developing roller

A cartridge detachably attachable to a main body of an image forming apparatus which includes a developing device, and the developing device includes a developer containing container, a developing container having a developer bearing member, a removable seal member for covering the opening portion, and a detecting portion for detecting an amount of the developer within the developing container, and the main body of the image forming apparatus detecting whether the seal member is removed or not by detecting the detecting portion by the main body of the image forming apparatus.

Cartridge detachably detachable to a main body of an image forming

A developer container used in electrophotographic image forming apparatuses includes a seal member having a sealing property improved to prevent leakage of a developer. The container has a container main body to accommodate the developer, a rotary member rotating in contact with the developer, and the seal member located at an end in a direction of a rotating shaft of the rotary member to prevent the developer from leaking.

Developer container

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a cartridge frame; an electrophotographic photosensitive drum having a cylinder and a photosensitive layer thereon; a process mechanism actable on the photosensitive drum; a drum shaft for rotatably supporting the photosensitive drum on the cartridge frame, the drum shaft extending through the photosensitive drum and having a length enough to be supported by the cartridge frame at one end thereof and at the other end thereof; and a preventing member for preventing the drum shaft from disengaging from the cartridge frame.

Process cartridge, assembling method for process cartridge and

A toner accommodating container usable with a process cartridge detachably mountable to a main assembly of an image forming apparatus, wherein the process cartridge contains an electrophotographic photosensitive member and a processing device actable on the electrophotographic photosensitive member, the container includes a toner accommodating portion for accommodating toner to be used for developing a latent image formed on the electrophotographic photosensitive member; a cover member provided to cover an opening of the toner accommodating portion; a grip portion provided on the cover member; a partition wall extending in the toner accommodating portion along a short side thereof with a gap between the partition wall and the cover member, and wherein the partition wall and the cover member are contactable to each other when the toner accommodating container is handled with the grip portion, and the cover member is deformed.

Toner accommodating container with a gripping cover feature usable with

A photosensitive drum includes a cylindrical member having a photosensitive body disposed thereon, and first and second helical gears arranged axially side-by-side on one end of the cylindrical member. The first helical gear is disposed axially outward of the second helical gear, and the first helical gear has an outer diameter greater than an outer diameter of the second helical gear. The first helical gear meshes with a drive gear to rotatingly drive the drum. A sleeve gear of a developing sleeve is selectively engaged with one of the first and second helical gears, depending upon a kind of toner used.

Photosensitive drum provided in an image forming apparatus including

A process cartridge detachably mountable to a main assembly of an image forming apparatus includes a drum frame for supporting an electrophotographic photosensitive drum; a developing frame mounted to a developing roller for developing a latent image formed on the electrophotographic photosensitive drum; a toner frame having a toner accommodating portion for accommodating a toner to be used by the developing roller, wherein the toner frame is provided with a coupling member for swingably coupling with the drum frame, and is provided with a grip for gripping the process cartridge.

Growing community of inventors

Tokyo, Japan

Yoshikazu Sasago