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:
Apr. 09, 2002

Filed:

Jul. 27, 2000
Applicant:
Inventor:

Yasunori Toda, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41F 1/306 ; B41F 1/302 ;
U.S. Cl.
CPC ...
B41F 1/306 ; B41F 1/302 ;
Abstract

A double-sided printing apparatus which includes two printers each including a tractor unit, a fixing unit and scuff rollers is improved in that, even if a printed surface of continuous recording paper contacts with the scuff rollers, stain to the print does not occur. The double-sided printing apparatus includes a tractor unit for forming a print image on the rear surface of continuous recording paper and transporting the continuous recording paper in a forward direction, a flash fixing unit for fixing the print image formed on the continuous recording paper to the continuous recording paper, scuff rollers capable of transporting the continuous recording paper in the forward direction and outputting transport amount information, and a tension control section for controlling the tractor unit and the scuff rollers so that the continuous recording paper has a predetermined tension when printing of the continuous recording paper is started. In the rear surface printing apparatus, fixed acceleration control is performed for the tractor unit and the scuff rollers, and a predetermined tension is applied to the continuous paper.


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