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.
Patent No.:
Date of Patent:
Jun. 20, 1989
Filed:
Apr. 14, 1987
Motoaki Takahashi, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An apparatus for conveying a sheet member by a conveyor roller having an axis perpendicular to the direction of convey of the sheet member, suitable for use in effecting a sub-scan by an electron beam over the surface of the sheet member. The apparatus has at least one suction roller constituting the conveyor roller and having a hollow cylindrical body and a multiplicity of suction holes formed in the wall of the cylindrical body; and an arrangement for allowing only selected suction holes to be exposed for the suction of the sheet material. The arrangement may include a chamber rotatably receiving the suction roller and communicating with a vacuum source, the chamber having a wall provided therein with at least one elongated slit through which the suction holes in a region parallel to the axis of the suction roller are exposed.