Vacuum imaging drum with angled vacuum holes

Details Vacuum imaging drum with angled vacuum holes Vacuum imaging drum with angled vacuum holes

1999-07-22

2000-04-11

Hilten, John S.

Typewriting machines

Platen or platen-moving mechanism

Cylindrical platen

400627, B41J 11057

Patent

active

06048120&

ABSTRACT:
An image processing apparatus (10) comprises a vacuum imaging drum (300) for holding thermal print media (32) and dye donor material (36), in registration with the thermal print media (32), on a surface of the vacuum imaging drum (300). A printhead (500) prints information to the thermal print media (32) as the printhead is moved parallel to the surface (305) of the vacuum imaging drum (300). Angled vacuum holes (306) connect the surface (305) and an interior (304) of the vacuum imaging drum (300) to maintain the thermal print media (32) on the surface. The angled vacuum holes (306) are at an acute angle to the surface (305) of the vacuum imaging drum (300).

REFERENCES:
patent: 4403847 (1983-09-01), Chrestensen
patent: 4660825 (1987-04-01), Umezawa
patent: 4852488 (1989-08-01), Abendroth et al.
patent: 5159352 (1992-10-01), Ferla et al.
patent: 5186107 (1993-02-01), Wieland
patent: 5268708 (1993-12-01), Harshbarger et al.
patent: 5276464 (1994-01-01), Kerr et al.
patent: 5520382 (1996-05-01), Nakajima
patent: 5913268 (1999-07-01), Jackson et al.

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