Apparatus and methods for sensing and clamping discs

Incremental printing of symbolic information – Ink jet – Combined

Reexamination Certificate

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C347S004000

Reexamination Certificate

active

10778005

ABSTRACT:
Apparatus and methods are provided. At least one clamping finger of a movable tray of a compact disc printer pushes against an outer periphery of a compact disc disposed on a surface of the tray to clamp the compact disc between the clamping finger and a pair of studs that protrude from the surface of the tray and engage a periphery of a hole passing through a center of the compact disc. A carriage of the printer for moving an ink jet cartridge attached thereto across the compact disc to deposit an image on the compact disc may include a sensor. The sensor can be used to determine the presence of a compact disc on the tray, whether the compact disc is clamped to the tray, and a dimension of the compact disc, and to perform a calibration method.

REFERENCES:
patent: 5542768 (1996-08-01), Rother et al.
patent: 6709175 (2004-03-01), Drynkin et al.
patent: 2004/0061757 (2004-04-01), Yanagi et al.
patent: 0 768 666 (1997-04-01), None
patent: 1 380 432 (2004-01-01), None
patent: WO 03/091035 (2003-11-01), None

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