Sharp Kabushiki Kaisha Corporation

Omron Corporation

Other

Takeshi Wakabayashi

Hiroshi Kawahito

Hisashi Kunihiro

Fumito Mizoguchi

Yasuyuki Ishiguro

Hiroshi Kubota

Takeshi Okuda

Hiroshi Tanisawa

Toshio Nishino

Jun Yamaguchi

Masanobu Deguchi

Takahiko Kimura

Takaaki Yamada

Masahito Tanaka

Ikuo Nanno

Hiroshi Ishii

Hiroshi Onda

Yuhsuke Yoshimoto

Yosuke Iwai

Syohji Tomita

Hiroyuki Yamamoto

Kiyoshi Morimoto

Kiyofumi Morimoto

Kazuya Koyama

Yasutaka Maeda

Toshihide Ohgoshi

Jitsuo Masuda

Hideaki Hagihara

Yoshihiro Yoshikawa

Hiroo Naoi

Syouichi Fujita

Naotaka Funayama

Hirofumi Sakita

Nobutomo Matsunaga

Arihiro Tsunoda

Hiroshi Kawamoto

Kazuo Tsuboi

Kohichi Takenouchi

Makoto Uehara

Teruyoshi Sudoh

Hirokazu Kitamura

Akira Takaishi

Atsushi Mukai

Hideki Kobori

Hajime Tsubata

Tsunetoshi Ooba

Motohisa Furukawa

Naotaka Uchiyama

Shigeyasu Kawaji

Kousaku Ando

Seiya Narimatsu

Yuuki Kataoka

Nobumasa Nakamizo

Hiroshi Tanizawa

Tao Ou

Yoshihisa Nakagawa

Kazuto Ishida

A heating device () comprises: a heater () for heating an item (); a temperature detection unit () for detecting the temperature of the item (); and a temperature adjustment unit () for controlling the heater () on the basis of a target temperature and the detected value of the temperature detection unit () so that the temperature of the item () reaches the target temperature. The heating device () determines, as a system gain change rate, the rate of change from the initial value of a system gain determined as a ratio of a temperature increase value of the item () with respect to electric power inputted to the heater (), and determines the rate of change in the heat retention of the item () using the system gain change rate.

Heating device and method for detecting failure of heating device

An LCD indicator unit contains an LCD indicator with a display portion that includes set temperature and current temperature display portions, a diffusion sheet disposed on the rear surface side of the LCD indicator, a reflective frame body disposed on the rear surface side of the diffusion sheet, a light guide plate disposed on the rear surface side of the reflective frame body such that an outer peripheral portion thereof is covered with the reflective frame body, and an LCD indicator control substrate-disposed on the rear surface side of the light guide plate, with LEDs serving as light sources for the LCD indicator mounted on a right-side outer peripheral portion on the front surface side of the LCD indicator control substrate. Light emitted from the LEDs is caused to enter a side wall surface portion of the light guide plate to irradiate the display portion of the LCD indicator.

Electronic equipment provided with display portion

A toner cartridge has a toner storage chamber, a discharge outlet, a conveying screw, and a blocking wall. The discharge outlet serves to send out toner stored in the toner storage chamber, and the conveying screw serves to convey the toner stored in the toner storage chamber. Further, before the toner cartridge mounted into an image forming apparatus, the blocking wall is located in a space between a toner area, which is an area in the toner storage chamber where the toner exists, and the discharge outlet, thereby putting the space in a blocked state. The toner cartridge further includes a driving mechanism for, when the toner cartridge has been mounted into the image forming apparatus, driving the conveying screw by power transmitted from the image forming apparatus, so as to cancel the blocked state.

Toner cartridge and image forming apparatus

A toner carrying device includes a flexible sheet, and a sheet moving mechanism for allowing the flexible sheet to move back and forth by pulling the flexible sheet. In the flexible sheet, a toner passage hole for leaving a first opening section of a toner carrying pipe to open is provided. In a case where the toner passage hole is divided into first through three areas in such a manner that (i) the first area is provided on a side of one end of the flexible sheet in a direction orthogonal to a moving direction of the flexible sheet; (ii) the second area is provided on a side of the other end of the flexible sheet in the direction orthogonal to the moving direction; and (iii) the third area is provided between the first area and the second area, the third area extends broader in the moving direction than respective of the first and second areas. This allows the flexible sheet partially having the toner passage hole in its area to move smoothly.

Toner carrying device and image forming apparatus

A toner conveyance unit is provided that can reliably prevent a toner from leaking and scattering. And an image forming apparatus is also provided having the toner conveyance unit. When a circular arc-shaped shutter member and a rotary shutter member are closed, a first conveyance part and a second conveyance part are adapted to separate from each other. When the circular arc-shaped shutter member and the rotary shutter member are open, the circular arc-shaped shutter member and the rotary shutter member rotate integrally so as to be enclosed in the tubular cylinder part, and to move a through hole to a position such as to constitute a portion of a second toner conveyance path, whereby the first conveyance part and the second conveyance part are adapted to be connected to each other so that a first toner conveyance path and the second toner conveyance path communicate with each other.

Toner conveyance unit and image forming apparatus

A toner supplier according to the present invention includes a toner stirrer. The toner stirrer includes a shaft, an auxiliary member, and a fixture. The melting point of the auxiliary member is higher than the melting points of the shaft and fixture. The shaft and fixture are welded to each other with the auxiliary member interposed between them. Because the melting point of the auxiliary member is higher than the melting points of the shaft and fixture, this member is not influenced by heat when the shaft and fixture are welded thermally to each other.

Toner supplier, development unit, and image forming apparatus

In a supply passage assembly having a toner passage arranged under a toner bottle for conveying toner supplied from the toner bottle to a developing unit arranged below, a toner conveying pipe for forming the toner passage is formed of an elastic material and a toner conveying pipe deforming member is arranged adjacent to the toner conveying pipe for elastically deforming the toner conveying pipe.

Toner conveying device, toner supply device and image forming apparatus using these

A supply passage assembly arranged under a toner bottle for conveying toner supplied from the toner bottle to a developing unit arranged below, includes: a toner passage having a toner input port at top and a toner discharge port at bottom and incorporating rotators for agitating the toner supplied from the toner bottle and is constructed so that the toner passage includes a first swing member for agitating toner near the toner input port and a second swing member for agitating toner near the toner discharge port.

A developing device comprises a stirring rollerhaving stirring bladesfor stirring a developer, a developing rollerfor transferring the developer to an electrostatic latent image, a control memberfor controlling the amount of developer transferred from the developing rollerto the electrostatic latent image, a reflux plateby which the excess developer resulting from control by the control memberis flowed back to the stirring roller, one end portion of the reflux platebeing disposed in the vicinity of the outer periphery of the stirring roller, part of the developer stirred by the stirring rollerflying toward the reflux plate, wherein said one end portion of the reflux plateis disposed at a position remote from the stirring rollerover a distance greater then the maximum fly distance of the developer provided by rotation of the stirring roller

Developing device and image forming device

Accumulation and coagulation of toner inside a vertically-disposed toner carrying path is properly prevented. The toner carrier apparatus includes: a toner carrier pipe which includes therein a toner carrying path through which toner is carried and is disposed so that the toner carrier path vertically extends; a pipe supporting member which supports the toner carrier pipe in such a way as to allow the toner carrier pipe to be vertically movable; a rotational member and operation wings, which cause the toner carrier pipe to reciprocally move in the vertical direction and horizontally swing; and a knocking mechanism which horizontally hits the toner carrier pipe.

Toner carrier apparatus, toner feeding apparatus, and image forming apparatus

When a work is set on a hot plate and a heat treatment is started and the like, an addition waveform of a target temperature is formed based on a previously formed data of an adjustment value, and a temperature is controlled by adding the addition waveform to the target temperature SP, and with the data of the adjustment value, the variation in temperature of the work is prevented using an interference matrix showing a relation between the target temperature SP and the temperature of the work.

Control method, temperature control method, adjustment method, temperature controller, program, recording medium and heat treatment device

An object of the present invention is to provide a remaining amount of toner detecting apparatus capable of highly accurately detecting the remaining amount of toner with a simple configuration, a toner cartridge in which the remaining amount of toner is highly accurately detected with a simple configuration, and an image forming apparatus which enables the operator to easily recognize time to resupply toner and is capable of forming an image of high image quality. A holding member () is flexible, one end () in the longitudinal direction is connected to a stirring member (), and the other end () in the longitudinal direction holds a detection auxiliary member () disposed in a housing (). Consequently, the holding member () and the detection auxiliary member () rotate as the stirring member () rotates. Moreover, as to the detection auxiliary member (), since the holding member () is flexible, the rotation radius of the detection auxiliary member () changes in response to the reference amount of toner (). A detecting component () detects the distance to the detection auxiliary member () that changes in response to the amount of the toner () in the housing (), and a CPU () calculates the remaining amount of the toner ().

Remaining amount of toner detecting apparatus, toner cartridge and image forming apparatus

A device including a developing roller having a magnet roller for transporting developer, and developing an electrostatic latent image, a regulating member regulating transportation amount of the developer transported to the electrostatic latent image with the development roller, and a reflux plate refluxing excess developer regulated by the regulating member away from the regulating member is constructed to comprise a rubbing member arranged to face the developing roller, at a second gap larger than a first gap defined by the developing roller and the regulating member, and rubbing developer transported to the first gap. The rubbing member carries out preliminary electrification on developer and then the regulating member carries out main electrification on the preliminarily electrified developer.

Magnet roller developing device and image forming apparatus for reducing obstructions in developer circulation path

A target value processing unit, includes: an input section to which a target value signal showing a target value of a control process is inputted; a target value shaping unit shaping the target value signal inputted to the input section, into a signal form which is proper for a control treatment of a regulator implementing the control process; and an output section outputting to the regulator a shaped target value signal which is shaped by the target value shaping unit. The target value processing unit realizes the high-level control process without improving the regulator.

Target value processing unit, temperature controller, control process implementing system, process controlling method, target value processing program, and recording medium

A plurality of individually corresponding heaters and temperature sensors are provided along with a plurality of a PID control means. An average temperature/gradient temperature calculating means calculates the average temperatures of the temperatures measured by the temperature sensors and the gradient temperatures based on the measured temperatures. Each of the PID control means outputs an operation signal so that the average temperatures or gradient temperatures may be made equal to the desired values. A distributing means distributes the operation signal from each of the PID control means to each heater so that control by the PID control means may produce no effect on the control of the other PID control means.

Controller, temperature regulator and heat treatment apparatus

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Kizugawa, Japan

Takeshi Wakabayashi