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:
Jul. 27, 1999
Filed:
Dec. 31, 1997
Erick Hagstrom, Hamel, MN (US);
Robert E Francis, Richfield, MN (US);
Primera Technology, Inc., Plymouth, MN (US);
Abstract
A CD printer for printing labels on compact discs print information on a CD centered on a print program center. A support for the CD is movable in one axis. The printer moves on a perpendicular axis. The axis forms a plane parallel to the plane of the disc. The CD may be centered selective to the printer program by printing on the disc a first series of lines that are radially spaced and extend from the CD center along both of the axes, and then rotating the CD 180.degree. and printing a second set of lines which are radially spaced along each of the axes but are spaced a radial distance less than the lines printed in the first printing. A vernier is established and where the lines align, the amount of offset from a centered position is indicated. Offset can be corrected by moving the tray and print head on its mounting in the respective directions to a new zero position indicated by the vernier display. The CD is held in a repeatable position on its tray through the use of a three-point contact arrangement that engages the edges of the discs at three locations.