Konica Corporation

Eiichi Kijima

Tatsuo Nakanishi

Akira Ohira

Junji Ujihara

Masao Asano

Shinichi Hamaguchi

Nobuaki Kobayashi

Susumu Inoue

A packaging material for electrophotographic development materials is disclosed. The packaging material comprising a film having a moisture permeability of 0.7 g/m /day, or a packaging material for electrophotographic development materials in which inner-most layer is an adhesive layer, the top layer is a polyester layer, and between them, there are at least an aluminum layer and a polyamide layer. The packaging material exhibits high moisture-resistance and film strength, and can cope with environmental issues.

Packaging materials for electrophotographic development materials, a packaging method, and toner and developer material for electrophotographic development

An electrophotographic photoreceptor and a cleaning method of the support therefor are disclosed. The element of Si and Na remaining on the support surface, evaluated in terms of ESCA, has the following relation with a major element constituting the support;

Electrophotographic photoreceptor, and a production method of the same

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.

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Hachioji, Japan

Eiichi Kijima