Konica Minolta, Inc.

Nec Corporation

Konica Minolta Business Technologies, Inc.

Teruo Sasaki

Akihiro Honya

Shinichi Yabuki

Yukio Hosoya

Taiki Amemiya

Kunihiro Ogura

Shinichi Hamaguchi

Junji Kanda

Kazunori Kurimoto

Tomoo Sakimura

Mayuko Ushiro

Naoki Nozaki

There is provided a method of producing a blade for cleaning a toner image retainer, the method including: binding an abutting layer that abuts against the toner image retainer and a supporting layer that supports the abutting layer, wherein the maximum value D of a difference between a first loss tangent at 1 Hz and a second loss tangent at 100 Hz of the blade that includes the abutting layer and the supporting layer satisfies the formula: 0.2&#x2264;D&#x2264;0.7, wherein the maximum value D is a maximum value of a difference between the first loss tangent and the second loss tangent at temperatures within a range of 0&#xb0; C. to 50&#xb0; C.

Method of producing blade, blade, image forming apparatus, and image forming method

An intermediate transfer body includes: a base layer made of a resin; and a surface layer disposed on the base layer, wherein the surface layer is an integral object of inorganic oxide and contains a black titanium compound dispersed in the surface layer.

Intermediate transfer body, method for manufacturing the same, and image forming device

An intermediate transfer body used in an electrophotographic image forming device includes: at least a substrate layer and a surface layer, wherein the surface layer is formed by a cured product obtained by curing a coating liquid containing a curable compound, an inorganic filler, and a fluorine-based surfactant having a reactive group, and the surface layer has a pure water contact angle of 75&#xb0; or more and 90&#xb0; or less.

Intermediate transfer body, method for manufacturing intermediate transfer body, and image forming device

An endless intermediate transfer belt includes a substrate layer, and a surface layer to be disposed on the substrate layer. The surface layer is configured by a polymerized cured product of a radical polymerizable composition including a radical polymerizable monomer having a radical polymerizable functional group, an oxime ester-based photopolymerization initiator having a carbazole structure, and a metal oxide particle subjected to surface treatment. The radical polymerizable functional group corresponds to one or both of an acryloyl group and a methacryloyl group. The metal oxide particle subjected to surface treatment includes a metal oxide particle, and a substance for support, to be supported on a surface of the metal oxide particle.

Intermediate transfer belt, image forming apparatus, and method for producing intermediate transfer belt

An intermediate transfer member includes a resin substrate layer and a surface layer disposed on the substrate layer. The surface layer is a cured product of a resin composition containing a polyfunctional (meth)acrylate, a photopolymerization initiator, and a tertiary amine compound having a melting point of 30&#xb0; C. or more. In the tertiary amine compound, at least one hydrogen atom is bonded to one carbon atom out of three carbon atoms bonded to a nitrogen atom.

Intermediate transfer member, method for producing intermediate transfer member, and image forming apparatus

According to the present invention, increase in a dynamic friction force can be suppressed and cleaning performance of a cleaning member can be improved under any operating environment without additionally providing a special mechanism. An intermediate transfer member includes a substrate layer and a surface layer, the surface layer contains a cured product of a polymerizable monomer, and the monomer contains a compound represented by the following formula (1):A-[(L-B)-D](D)&#x2003;&#x2003;(1)

Intermediate transfer member, image forming apparatus and image forming method

A solid lubricant is supplied to a surface of an image carrier of an electrophotographic image forming apparatus. The solid lubricant contains a fatty acid metal salt and polypropylene, and the polypropylene has an acid value of 1 mg KOH/g or more. The solid lubricant is a solid substance of a melt mold containing the fatty acid metal salt and the polypropylene.

Solid lubricant, electrophotographic image forming apparatus, and image forming method

A solid lubricant containing a fatty acid metal salt and a polyethylene having an acid value is prepared. The solid lubricant is disposed so as to be applied on a surface of an image bearing member of an image forming apparatus in electrophotography, and a lubricant layer is formed on the surface of the image bearing member with the solid lubricant.

Solid lubricant, image forming apparatus and image forming method

Reduced can be interferential streaks produced in a halftone image when using a photoreceptor support (also called a drawn tube) having been subjected to tool bit cutting processing, and provided can be an electrophotographic photoreceptor capable of obtaining high quality in response to the light printing field or the like and an image forming method employing the electrophotographic photoreceptor. Also disclosed is an electrophotographic photoreceptor possessing a cylindrical support and provided thereon, a photosensitive layer, the cylindrical support possessing a processing profile regularly formed along a central axis, provided on a circumferential surface of the cylindrical support, wherein the processing profile satisfies Formula 1: Formula 1 &#x394;L&#x2267;10 &#x3bc;m, where &#x394;L, represents a difference between a processing period width and another processing period width in a central axis direction of the cylindrical support in an image region.

Electrophotographic photoreceptor and image forming method

In a frequency-voltage conversion circuit, integrating means gives a predetermined slope for rising or falling of a rectangular pulse signal. First comparing means compares an output value of the integrating means with a threshold value, and produces a pulse signal line having a pulse width corresponding to frequency of the rectangular pulse signal. Storing means stores and retains the threshold value. Smoothing means smooths the pulse signal line, and produces a voltage value corresponding to the frequency of the rectangular pulse signal. Second comparing means compares the voltage value with a reference voltage, and charges and discharges electric charge for the storing means on the basis of the comparison result.

Frequency-voltage conversion circuit and receiving apparatus

An AFC circuit for controlling an oscillation frequency of a local oscillator is disclosed. An f/V converter converts a frequency of an FSK signal to a received signal voltage varying depending on the frequency of the FSK signal. A window generator generates a voltage window including a reference voltage corresponding to a center frequency of the FSK signal. The oscillation frequency of the local oscillator is controlled depending on a deviation of the received signal voltage from the voltage window so that the received signal voltage falls into the voltage window.

Automatic frequency control in FSK receiver using voltage window deviation

In a frequency-voltage conversion circuit, integrating circuitry gives a predetermined slope for rising or falling of a rectangular pulse signal. First comparing circuitry compares an output value of the integrating circuitry with a threshold value, and produces a pulse signal line having a pulse width corresponding to frequency of the rectangular pulse signal. Storing circuitry stores and retains the threshold value. Smoothing circuitry smoothes the pulse signal line, and produces a voltage value corresponding to the frequency of the rectangular pulse signal. Second comparing circuitry compares the voltage value with a reference voltage, and charges and discharges electric charge for the storing circuitry on the basis of the comparison result.

In a demodulating device which comprises an orthogonal transforming circuit, an up-converting circuit, a pulse signal producing circuit, and a low-pass filter, the orthogonal transforming circuit orthogonally transforms a received frequency shift keying signal to produce a first base band signal and a second base band signal. A phase converting circuit converts a clock signal from a clock signal producing circuit to produce a first clock signal having a first phase and a second clock signal having a second phase. A first EXOR circuit receives the first base band signal and the first clock signal to produce a first EXOR output signal. A second EXOR circuit receives the second base band signal and the second clock signal to produce a second EXOR output signal. A mixing circuit mixes the first EXOR output signal and the second EXOR output signal to produce and supply an up-converted signal to the pulse signal producing circuit.

Demodulating device comprising a small circuit and a small consumption

A multivalued FSK demodulation window comparator includes an MSB comparator, an LSB comparator, a reception electric field strength detector, and a reference voltage generating circuit. The MSB comparator determines at least the polarity of a frequency shift of a radio frequency. The LSB comparator determines the absolute value of the frequency shift of the radio frequency. The reception electric field strength detector detects the strength of a radio signal and outputs a signal corresponding to the detected strength. The reference voltage generating circuit changes the reference voltages of the LSB comparator in accordance with an output voltage from the reception electric field strength detector. When the output voltage from the reception electric field strength detector is not higher than a predetermined level, a reference voltage from the reference voltage generating circuit changes.

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Tokyo, Japan

Teruo Sasaki