1367 patents
Page 57 of 69
Utility
Developer replenishing device, developer device, and image forming device having a vibration plate that engages an agitation member
24 Feb 20
A device that replenishes developer to a developer unit and includes a storage for storing developer, an agitation member, and a vibration plate.
Tetsuya Sakai, Syuichi Katogi, Takeru Kinoshita
Filed: 13 Aug 18
Utility
Electrophotographic image forming apparatus
24 Feb 20
Provided is a means in which in a tandem type electrophotographic image forming apparatus, image deletion of a formed image is suppressed, passing through of a toner is suppressed, and the lifetime of an organic photoreceptor and the apparatus itself is prolonged.
Daisuke Kodama, Keiichi Inagaki
Filed: 6 Nov 18
Utility
Optical writing device and image forming apparatus
24 Feb 20
In an optical writing device that deflects light beams from first and second light source sections and performs scanning by first and second scanning optical systems, in reflective optical elements disposed in the optical axis direction from after the polygon mirror to before a separation mirror, a number of hold points on each of a writing start side and a writing end side in scanning is same, and in reflective optical elements disposed from after the separation mirror up to a surface to be scanned, a number of hold points on a writing start side of the first scanning optical system is same (one) with that on a writing end side of the second scanning optical system, and a number of hold points on a writing end side of the first scanning optical system is same (two) with that on a writing start side of the second scanning optical system.
Akira Taniyama, Hideo Uemura, Takashi Kurosawa, Naoki Tajima
Filed: 27 Nov 18
Utility
Image forming system, image forming apparatus, tone correction method, non-transitory recording medium storing computer readable tone correction program, and image density correction method
24 Feb 20
An image forming system includes: a density detecting section that detects the density of a toner image formed on an image bearing member by an image forming section, the density being detected as an output image density; a hardware processor which performs; tone correction in accordance with input-output characteristics data indicating the relationship between an input image density and an output image density, the input image density being the image density of a tone component included in the input image data, the output image density being detected by the density detecting section in accordance with the tone component; determining whether there is a missing tone component in the input image data; and complementing the input-output characteristics data corresponding to a missing tone component, when it is determined that there is the missing tone component.
Katsuya Toyofuku, Daiki Yamanaka, Toru Yamaguchi
Filed: 2 Jan 19
Utility
Spectral filter and spectrometric device
17 Feb 20
A spectral filter (10) is provided with a long-pass filter (12) and a short-pass filter (13).
Hidetaka Jidai, Munenori Kawaji, Ryoji Matsuda
Filed: 27 Mar 16
Utility
Optical unit and projector including the same
17 Feb 20
An optical unit includes a digital micromirror device that drives each micromirror to be ON/OFF controlled, a first prism that guides illumination light to the digital micromirror device, a second prism having an OFF light reflection surface that reflects OFF light reflected on a micromirror in an OFF state and allows transmission of ON light reflected on a micromirror in an ON state, and a third prism that receives the ON light emitted from the second prism to output the ON light to a projection side.
Masahiro Terada
Filed: 6 Apr 15
Utility
Fixing device and image forming apparatus
17 Feb 20
A fixing device fixes a toner image onto a recording material by applying heat and pressure to the toner image formed on the recording material at a nip provided in a conveyance path of the recording material, and includes: a heating source; a pressure roller and a pressure pad; and a sandwiching member, wherein the pressure pad includes a first main surface and a second main surface, and the first main surface is formed of a long plate-like member, the sandwiching member includes a long plate-like abutting part, and a width-direction center in an area included in the second main surface and corresponding to a recording material passing region provided in the nip bulges toward the abutting part side more than width-direction both ends of the area included in the second main surface and corresponding to the recording material passing region provided in the nip.
Shinichi Yabuki
Filed: 6 Jan 19
Utility
Image forming apparatus and method for controlling image forming apparatus
17 Feb 20
An image forming apparatus includes: a photoreceptor including a surface layer; a storage that stores a target value of a variation of a film thickness of the surface layer; and a hardware processor that acquires a variation of the film thickness in a first period within which the photoreceptor rotates a predetermined number of times, and sets a margin that is an amount of a portion for allowance with respect to a proper value of a parameter related to control of the photoreceptor, the margin being to be employed after the first period.
Yuusuke Mandai
Filed: 7 Nov 18
Utility
Electrostatic charge image developing toner and two-component developer
17 Feb 20
The electrostatic charge image developing toner of the present invention is an electrostatic charge image developing toner including a toner mother particle including at least a binding resin, and an external additive attached onto a surface of the toner mother particle, wherein a median size on a volume basis of the toner mother particle is in the range from 3.0 to 5.0 μm, the binding resin contains at least an amorphous polyester resin as a main component, and a spherical silica particle (1) having a number average particle size in the range from 20 to 55 nm is included as the external additive.
Kouji Sugama, Kazumi Oura, Masaharu Matsubara, Ikuko Sakurada
Filed: 6 Mar 19
Utility
Radiographic image capturing apparatus and radiographic image capturing system
17 Feb 20
A radiographic image capturing apparatus includes: a two-dimensional array of radiation detecting elements that generate one or more electric charges in proportion to a dose of incident radiation; and a control unit that performs control, at least, to read the electric charges from the radiation detecting elements and generate image data.
Akira Hiroshige, Wataru Matsushita, Nobuyuki Miyake, Hidetake Tezuka, Tetsu Hosoki, Tomonori Gido
Filed: 18 Oct 15
Utility
Image forming apparatus with security feature, computer-readable recording medium storing program, and image forming system
17 Feb 20
An image forming apparatus causes an image forming portion to perform image forming processing based on a security job issued by an output-permitted user, in a case where an outsider-use-possibility calculated by an outsider-use-possibility calculation portion becomes equal to or smaller than a predetermined threshold value on the basis of information of a movement trajectory of the output-permitted user and also the output-permitted user has been detected in an output-process-start area.
Kosuke Masumoto
Filed: 16 May 17
Utility
Information processing system, portable information terminal, information processing device, and non-transitory computer readable recording medium
17 Feb 20
An information processing system comprises an information processing device and a portable information terminal that allow communication therebetween.
Masato Fujii
Filed: 30 Jan 13
Utility
Image forming apparatus, printing method, and non-transitory recording medium
17 Feb 20
An image forming apparatus includes a hardware processor.
Hiroki Hidaka
Filed: 24 Jan 19
Utility
Image forming apparatus, image forming system, and non-transitory computer-readable recording medium storing a program
17 Feb 20
An image forming apparatus includes an image forming section for forming an image on a transfer medium, a conveyance section for conveying the transfer medium, and a control section for controlling image formation and conveyance.
Akio Ueda
Filed: 10 Oct 17
Utility
Image processing device, method for controlling image processing device, and program
17 Feb 20
An image processing device includes: a displayer; and a hardware processor that obtains voice recognition data that is a voice recognition result related to a voice vocalized in a state in which at least one operation screen is displayed in the displayer, determines a search target character string on the basis of the voice recognition data, executes search processing of searching for one voice operation command that agrees with the search target character string among a plurality of voice operation commands including a voice operation command group related to a first screen related to the image processing device, and a voice operation command group related to a second screen displayed according to user's operation for the first screen, and executes processing corresponding to the one voice operation command that has been searched for by the hardware processor.
Hozuma Nakajima
Filed: 10 Feb 19
Utility
Image forming apparatus and calibration method
17 Feb 20
An image forming apparatus includes: an image former that forms a document image including a correction image; an image reader; and a calibrator, and performing correction, wherein the document image is designed so that main register marks and a subsidiary register mark are provided, and the calibrator includes a four-corner detector that detects four corners of a sheet of paper, a main register mark reference position detector that detects reference positions of the main register marks, a subsidiary register mark prediction position determiner that predicts and determines prediction positions of the subsidiary register marks, a subsidiary register mark reference position detector that detects a reference position of the subsidiary register mark, a correction image prediction position determiner that predicts and determines a prediction position of the correction image, a measured value obtainer, and a correction value calculator.
Mieko Mita
Filed: 20 Mar 18
Utility
Tunnel magnetic resistance element and method for manufacturing same
10 Feb 20
A tunnel magnetic resistance element includes the following, a fixed magnetic layer with a fixed direction of magnetization, a free magnetic layer in which the direction of magnetization changes, and an insulating layer which is positioned between the fixed magnetic layer and the free magnetic layer.
Yasuo Ando, Mikihiko Oogane, Kosuke Fujiwara, Junichi Jono
Filed: 15 Feb 17
Utility
Controller, color chart and non-transitory recording medium storing computer-readable program for managing print products
10 Feb 20
Provided are a controller, a color chart and a non-transitory recording medium.
Takashi Ajioka
Filed: 27 Feb 18
Utility
Image forming apparatus
10 Feb 20
An image forming apparatus that conveys a sheet and prints an image on the sheet, includes: a sheet feed tray on which the sheet is placed; a motor that drivingly rotates a polygon mirror with which a latent image corresponding to the image is formed; a hardware processor that identifies a type of the sheet based on an output from a sensor provided between the sheet feed tray and a position at which the printing takes place, on a conveyance path for the sheet; and a motor controller that changes a rotation speed of the motor to a first speed, starting from a startup timing synchronized with starting of conveyance of the sheet, wherein the startup timing is set in such a manner that an identification timing at which the type of the sheet is identified arrives while the changing to the first speed is still in progress.
Shun Sugai
Filed: 10 Jul 19
Utility
Image forming device and method for controlling the same
10 Feb 20
An image forming device includes: a fixing unit that fixes an image formed on a recording medium; a heating unit that heats a recording medium that has been subjected to a fixing process by the fixing unit; and a controller that sets a glossiness of an image on a recording medium, wherein the controller controls a heating amount with the heating unit depending on the set glossiness.
Naoki Yoshie, Chiaki Yamada
Filed: 2 Dec 18