Fuji Xerox Co., Ltd.

Hiroh Soga

Eiichi Akutsu

Shigehito Ando

Kiyoshi Nagamine

Susumu Hirakata

Kiyoshi Kimura

Hideaki Tanaka

Tsuneo Toda

Akinori Ono

Yasushi Sakata

Haruhiko Okabe

Takeshi Yokoe

Nobumasa Furuya

Kazuo Maruyama

Takeshi Sumikawa

Tadakazu Edure

Tsuneo Noami

Toru Okamoto

Taku Aoshima

Hiroshi Kawarazuka

Hiroaki Kumai

Mikio Saisu

In the case of being mounted with any cartridge other than a genuine cartridge, which accommodates a toner other than a genuine toner, a user can select as an operation mode other than that corresponding to a genuine toner, through a UI device, making a correction to the consumption of a developer by combining conditions to be changed, such as increasing or decreasing the degree of a change (gradient) in a set value of the toner density with respect to the consumption of a developer (mor m); increasing or decreasing a limit value (mor m); varying an initial value (consumption=0) (m); no making a change in a set value according to the consumption (m); and no making a change in a set value according to the consumption, for example, by varying an initial value (m)

Image forming apparatus mounted with replaceable unit, image forming system, and method of controlling image forming apparatus

An image forming apparatus has at least one replaceable unit replaceably mounted to an image forming apparatus main body. The image forming apparatus outputs a message purporting that a reservation of an operation mode can be received, at the timing that a replacement timing of the replaceable unit which is currently mounted is close in time. If so, prior to the replacement of the replaceable unit which is current mounted, a reservation of an operation mode for a replaceable unit which is to be mounted next time may be received. Further, if the replacement of the replaceable unit is detected, the image forming apparatus starts the control according to the reserved operation mode.

By using information stored in a storage part provided in the image forming apparatus main body or the results of detection of an image density sensor or the like, it is judged whether or not a replaceable unit such as a toner cartridge has been replaced. Furthermore, from information stored in the storage part provided in the image forming apparatus main body, it is detected whether a replaceable unit such as a toner cartridge is genuine or other than genuine units. From these detection results, information on the amount used for developer of the replaced toner cartridge, stored in the storage part, is initialized.

Image forming apparatus attached with replaceable unit

With an image forming device, with respect to a set image density S (default mode), the modes of: increasing or decreasing the variation amount (slope) of the set image density in accordance with a usage amount of a developing device (m, m); increasing or decreasing the limit value (m, m); changing the initial value (usage amount=0); not changing the setting in accordance with the usage amount (m); and changing, for example, the initial value but not changing the setting in accordance with the usage amount (m); etc., are provided as operation modes that differ from an operation mode accommodating a genuine product and are enabled to be selected by a user when a toner cartridge containing a toner that is a product other than a genuine product is mounted.

Image forming device having replacement units mounted thereto

A localized heating device includes a laminate structure of a heat insulating substrate, a heating region made by sandwiching a heating layer between a pattern electrode layer and a conductive layer and a low surface energy layer. In another aspect of the invention, a localized heating apparatus includes a localized heating device and a power supply system that supplies a current selectively and stably to the heating layer between the pattern electrode layer and the conductive layer from the current supply portion formed at one or both end portions of the heating region.

Laminate fixing roller, apparatus using same and method for manufacturing laminate fixing roller

A conduction recording head forms an image on a recording sheet by connecting return path electrodes and recording electrodes conductively through a printing and recording medium. Recording electrodes, a drive circuit and connector electrodes are all disposed integrally on a flexible insulating film as a main head part which is disposed on a rigid support member through an elastic member.

Conduction recording head

The development apparatus of this invention includes a developer supporting body consisting of a rotatable non-magnetic sleeve and a magnet roll fixedly installed within the rotatable non-magnetic sleeve. The development method involves the following steps: a latent image formed on a latent image supporting body is developed or made visible with a two-component developer carried on the developer supporting body in a non-contact manner; a horizontal magnetic field which is orientated in the circumferential direction of the developer supporting body is applied to the developer in an effective development area on the developer supporting body, the effective development area facing the latent image supporting body; and a developer movement promotion magnetic field is applied locally to a part of the effective development area on the developer supporting body so that the developer is expelled from that part of the effective development area and that chains of carrier of the developer in the developer expelled region are slid in the circumferential direction of the developer supporting body. This development method ensures a sufficiently high development performance during the multicolor image forming process without disturbing the toner image formed.

Development method and apparatus and multicolor image forming apparatus

A display medium is disclosed, comprising at least the following layers, in this order: a heating resistive layer, a conductive layer, a background layer and an erasable thermochromic layer, and comprising a heating resistive layer which may comprise at least two layers. The display medium may also comprise a contact resistance reducing layer on the heating resistive layer and a protective layer on the erasable thermochromic layer.

Erasable display medium

A thermal printing ink medium which electrically generates heat to transfer an ink thereof to a transfer material to form an image thereon is disclosed, which comprises a first heating element layer, a second heating element layer in contact with said first heating element layer, said second heating element layer having a greater volume resistivity than said first heating element layer, a conductive layer in contact with said second heating element layer, an ink layer provided on the side of said conductive layer opposite to said second heating element layer, and an adhesion-improving layer formed on the interface between said conductive layer and second heating element layer by the interaction therebetween so as to have a given volume resistivity. The thermal printing ink medium has advantages of (1) broadened choice of materials for an ink layer and ease in coloring the ink layer, (2) production ease and economy, (3) stable printing quality, (4) feasibility of repeated use, (5) an increased energy efficiency in image printing, (6) freedom from surface damage, (7) a reduced peak temperature of heat generation in a heat generating layer, and (8) high resolving power.

Thermal printing ink medium

Disclosed is a method for regenerating an ink recording medium formed by successively laminating an anisotropic electrically conductive layer, a heating resistor layer for generating heat in response to application of an electric signal, an electrically conductive layer, an ink parting layer, and a heat-melting ink layer, in which the heat-melting ink layer after print-recording with the ink recording medium is regenerated by use of ink particles containing a binding resin and a coloring agent, the improvement is in that by use of the ink recording medium further including an ink parting layer having a thickness of 0.08 to 3 .mu.m, and a volume resistivity of 10.sup.8 .OMEGA. cm or more, the heat-melting ink layer after print-recording with the ink recording medium is electrified with the same polarity as the potential of electrified ink particles, and then the ink particles carried by an ink carrier is deposited on traces of transferred ink formed in the heat-melting ink layer. According to the method, therefore, ink particles can be prevented from depositing onto an untransferred portion of the heat-melting ink layer of the ink recording medium, so that a difference in ink layer thickness between the ink transferred portion (traces of transferred ink) and the untransferred portion can be reduced to thereby make it possible to obtain good printed images even in the case of repeated use for a long term.

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Saitama, Japan

Hiroh Soga