Imaging drum with improved material holding

Details Imaging drum with improved material holding Imaging drum with improved material holding

2006-03-28

2006-03-28

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S264000

Reexamination Certificate

active

07019769

ABSTRACT:
An image processing apparatus (10) for writing images to print media (32), which comprises an imaging drum (300) for supporting the print media (32), wherein the imaging drum (300) has a surface, a drive end wall (310), and a vacuum end wall. A printhead (500) is used for forming an image onto the print media (32). A motor rotates the imaging drum (300) and a blower creates a vacuum supply to the imaging drum (300) for holding the print media (32) on the surface. At least one vacuum piston (504) creates a second vacuum supply (508) to the surface, wherein the vacuum piston (504) is mounted in the drive end wall (310) or the vacuum end wall, or if more than one vacuum piston (504) is used, optionally in both walls.

REFERENCES:
patent: 5755520 (1998-05-01), Furlani et al.
patent: 5777658 (1998-07-01), Kerr et al.
patent: 6639622 (2003-10-01), Kerr

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