Ricoh Company, Ltd.

Hiroshi Katabami

Minoru Matsuo

Sumio Kamoi

Hirokazu Kurihara

Atsushi Takai

Toshikazu Hirakawa

Shigenobu Fukui

Kazuo Ishida

Atsushi Ishibe

A base element for a fixing belt are provided. The base element includes a sheet which is made of a heat resistant resin and has opposite end portions joined in an endless state. A conductive film layer of a thickness of 3 to 15 &#x3bc;m is provided over two third or more area of an inner surface of the endless belt.

Fixing belt, base element for fixing belt, fixing device, image forming apparatus and method for producing base element

A heat-resistant endless resin belt including a heat-resistant resin sheet, which can be employed in a thermal fixing apparatus, wherein the sheet includes two cutting work parts in an inclined shape. The two parts are overlapped with each other and bonded with an adhesive to form a bonding part. An external shape displacement f(x), measured via a flatness measuring apparatus, which scans the belt in a width direction thereof, satisfies a following formula wherein 'X' (mm) is a length of the belt in a width direction thereof; 'L' (mm) is a perimeter of the belt and &#x201c;g(x)&#x201d; represents a displacement of an ideal shape of the heat-resistant resin belt, when g(x)=C (a constant), a left side of the formula is set to be a minimum; whilst when g(x) is a variable, the displacement of the ideal shape of the belt is set.

Heat-resistant resin belt, manufacturing method thereof and image forming apparatus

A fixing device () including a fixing member (), a pressure member () forcibly contacting with the fixing member, and a separating plate () for separating a transfer paper () ejected from a nipping part () formed by the fixing member and the pressure member contacting with the fixing member, from the fixing member, the separating plate including an edge part () disposed close to the fixing member, the separating plate being disposed relative to the fixing member so that a sum of a thickness of the edge part of the separating plate and a gap () formed between the edge part and the fixing member is lesser than a minimum lift height of the transfer paper ejected from the nipping part.

Separating plate, fixing device having the separating plate with an edge part that abuts with the fixing member, method for producing the separating plate and image forming apparatus

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Chigasaki, Japan

Hiroshi Katabami