Konica Corporation

Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Junji Ujihara

Akira Ohira

Nobuaki Kobayashi

Masao Asano

Izumi Mukoyama

Eiichi Kijima

Eiichi Yoshida

Takayuki Suzuki

Susumu Sudo

Shoichiro Ishibashi

Hirohiko Seki

Tadaaki Sumitani

Tsuyoshi Shimoda

Kentarou Yamawaki

A method for manufacturing an intermediate transfer belt having at least a base layer and a surface layer formed in contact with a surface of the base layer, includes: irradiating a surface of the base layer with a laser such that Rz (in accordance with JIS-B0601-2001) is 0.2 &#x3bc;m or more and equal to or less than a half of a film thickness of a surface layer to be formed; and forming a surface layer on the surface of the base layer irradiated with the laser.

Method for manufacturing intermediate transfer belt and image forming device

An endless-belt shaped heating element is produced by: dispersing annealed stainless-steel fibers in the heat-resistant resin or a precursor thereof; and, producing a molded article of the heat-resistant resin in which the annealed stainless-steel fibers are dispersed.

Process of producing heating element

A sheet heater that includes a sheet article composed of a conductive resin composition containing a conductive material and a resin, and a pair of metal plate electrodes, each of the electrodes being bonded to each of the ends of the sheet article, wherein when elements of the sheet article are detected at a portion 1 &#x3bc;m depth from a surface of the metal plate electrode, a peak area ratio of silicon (Si) to metal ion (M) is 1/100 to 1, the metal ion M being most abundant of all metal ions detected at the portion, the peaks being obtained by measuring an X ray generated at the portion by applying an X ray to the portion with the scanning electron microscope-energy dispersive X-ray spectrometer.

Sheet heater and image fixing device including the sheet heater

A surface abrading method of an electrophotographic photoreceptor is disclosed, comprising abrading the surface of a photosensitive layer with an abrading member entrained about a backup roll with feeding the abrading member and rotating the photoreceptor, while moving the abrading member parallel to a rotating shaft of the photoreceptor with bringing the abrading member into contact with the photosensitive layer surface, wherein the abrading member comprises a solid body on a backing material, the solid body contains abrasive grains and is provided on the backing material brought into contact with the photosensitive layer surface, and the top face of the solid body exhibits a surface roughness (Ry) of from 4.0 to 8.0 &#x3bc;m.

Surface abrading method of photosensitive layer of electrophotographic photoreceptor

Disclosed is a production method of an electrophotographic toner, which comprises toner particles comprising a resin and a colorant. The method comprises a step of forming toner particles in an aqueous medium, and processing an aqueous medium containing the toner particles or a component of the toner particles by gas bubbles.

Preparation method of toner and toner

A coating method of coating an outer circumferential surface of a cylindrical base with a coater having a supply port, a coating solution chamber, and a slit communicating with the coating solution chamber, the slit being provided around an inner circumferential surface of the coater, comprisse steps of: feeding a coating solution from the supply port to the coating solution chamber so that the coating solution is discharged to the slit; adjusting an absolute pressure P in the coating solution chamber so as to satisfy the following formula: 3&times;10 &lE;P&lE;3&times;10 (mmH O) and relatively moving the cylindrical base through a hole formed by the inner circumferential surface of the coater so that an outer circumferential surface of the cylindrical base is uniformely coated with the coating solution flowing out from the slit.

Coating method for cylindrical base member

An apparatus for coating a cylinder with a solution. The apparatus has a coater which includes a body having a circular hole through which the cylinder passes. A coating surface is provided on a wall of the circular hole so as to surround an outer surface of the cylinder as the cylinder passes through the circular hole. A solution chamber is provided in the body for storing the solution, and a slit is provided in the body for distributing the solution from the solution chamber to the coating surface. A feeding port is provided on a periphery of the body, and a feeding conduit is provided in the body for connecting the feeding port and the solution chamber so that the solution is fed from the feeding port to the solution chamber. The solution chamber has a height H2 of 5 mm to 50 mm, the slit has a slit gap distance HI, and a ratio H2/H1 is 10 to 1000. In addition, the apparatus also includes a conveyor for conveying the cylinder through the circular hole of the coater so that the outer surface of the cylinder is coated with the solution when the cylinder passes the coating surface provided on the wall of the circular hole.

Ring-shaped coating apparatus

In a method of coating outer surfaces of plural cylinders by a coater having a circular hole on which a coating surface is provided, gas is blown onto the outer surface of the cylinder by a cylindrical blowing device so that the cylinder is positioned coaxially with the circular hole. The gas amount is changed when the cylindrical blowing device blows gas onto a joint portion at which a bottom edge of an upper cylinder contacts with a top edge of a lower cylinder.

Method of and apparatus for positioning a cylindrical base material

A method of manufacturing an electrophotographic receptor drum, has the following steps. Cylinder shafts of a plurality of cylindrical drums are aligned with each other; and circular ends of the drums are contacted with each other and the drums are stacked on each other. Photoreceptor material is continuously coated on circumferential surfaces of the drums while the drums are inserted into a ring-shaped coater and the ring-shaped coater is moved vertically from an upper portion to a lower portion of the stacked drums. Each of the drums satisfying the following inequalities at the same time is used for the coating:

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Hachioji, Japan

Junji Ujihara