Method and apparatus to provide a loading force print-head adjus

Details Method and apparatus to provide a loading force print-head adjus Method and apparatus to provide a loading force print-head adjus

1998-08-28

2000-08-08

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

B41J 2435

Patent

active

061009113

ABSTRACT:
An image processing apparatus for sheet thermal print media includes a vacuum imaging drum for holding thermal print media and dye donor material in registration on the vacuum imaging drum. A print-head moves along a line parallel to a longitudinal axis of the vacuum imaging drum as the vacuum imaging drum rotates. The print-head receives information signals and produces radiation which is directed to the dye donor material which causes color to transfer from the dye donor material to the thermal print media. Focus adjustment of the print-head employs magnetic loading force against an adjustment device, using a combination of permanent magnets that provide magnetic attraction and repulsion. Also, print-head angle adjustment uses a further combination of permanent magnets that provide a magnetic loading force against a further adjustment device using magnetic attraction and repulsion.

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