The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 26, 1986

Filed:

Sep. 14, 1984
Applicant:
Inventors:

Haruo Koyama, Yawata, JP;

Toshio Nishino, Sakai, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; B65H / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 271-31 ; 271902 ;
Abstract

An electrostatic copying apparatus having defined therein a copying paper conveying passage extending from a paper feeder to a paper receiver through a transfer zone and a fixing zone. In the transfer zone, a toner image on an electrostatographic material is transferred to a copying paper, and then fixed in the fixing zone. The electrostatic copying apparatus includes a paper swerving device disposed within the paper conveying passage and between the fixing zone and the paper receiver and adapted to be selectively held at a non-operating position at which it permits the copying paper to be discharged into the paper receiver through the paper conveying passage and an operating position at which it swerves the paper from the paper conveying passage; a paper re-feeding device for feeding the received paper into the paper conveying passage at a position upstream of the transfer zone; and a paper returning device for returning the swerved paper to the paper re-feeding device while its front and back surfaces are reversed, the swerved paper having been swerved from the paper conveying passage by the paper swerving device held at the operating position. Thus, the apparatus can produce an image on both surfaces of the paper as required.


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