Hitachi Koki Co., Ltd.

Hiroyuki Ogawa

Takao Chikuzenya

Isao Nakajima

Shuho Yokokawa

Hiroshi Ueno

Shuuho Yokokawa

Hiroshi Hakuta

Kuraichi Fukaya

Preheating temperature of a preheating plate provided on the front side of a fixing unit can be changed using a temperature controller. In a case where a printing system to print images on both sides of a print member is constructed by arranging two electrophotographic printing apparatuses in dependent relationship, the preheating temperature of the preheating plate in the electrophotographic printing apparatus in the second stage is changed to a low temperature to prevent the toner image fixed in the electrophotographic printing apparatus in the first stage from softening.

Preheating controller for a two-stage electrophotographic printing system

A foreign matter removing mechanism for an electrophotographic printer, which includes: a sheet guide 2a, arranged between a photosensitive drum 1 and a tractor 9, for guiding a print sheet 3; and a foreign matter removing member 5 arranged so as to confront the sheet guide 2a through a predetermined gap 4 relative to the sheet guide 2a. In the foreign matter removing mechanism, a notch 11 is arranged on at least one confronting surface of the sheet guide 2a and the foreign matter removing member 5.

Foreign matter removing mechanism for electrophotographic printer

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Ibaraki, Japan

Hiroyuki Ogawa