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:
Feb. 05, 2002

Filed:

Nov. 12, 1999
Applicant:
Inventors:

Kenichi Kato, Kanagawa, JP;

Tsuyoshi Tanabe, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 5/04 ;
U.S. Cl.
CPC ...
B65H 5/04 ;
Abstract

There is provided a sheeting transport apparatus comprising two roller pairs as a component of an auxiliary scan transport mechanism in optical beam scanners and an anti-positional offset mechanism that is provided between the two roller pairs to prevent any positional offset of sheeting that may occur in the depth direction from the optical scan position, for example a retaining roller pair including a fixed roller and a retainer roller capable of adjusting the force of urging the fixed roller. This apparatus further includes opening and closing mechanisms for independently advancing or retracting a roller of each roller pair with respect to a fixed roller, and drive units thereof. This apparatus is a small, compact and low-cost apparatus that is simple in configuration and which yet is optimal for precise image reading and recording purposes. The apparatus is capable of suppressing the adverse effects of curl and other undesirable phenomena in the sheeting. Any positional offsets in the depth direction such as upward departure from the light scanning position are eliminated or reduced thereby ensuring that the sheeting is maintained adequately flat during transport in the auxiliary scanning direction.


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