Detection of type of dye donor element in a thermal printing sys

Details Detection of type of dye donor element in a thermal printing sys Detection of type of dye donor element in a thermal printing sys

1994-04-12

2000-06-27

Lee, John R

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

2505594, 347178, 4002403, B41J 1736

Patent

active

060809930

ABSTRACT:
The present invention provides a thermal printing system equipped with at least 3 light sources and 3 photodetectors positioned opposite thereto for detecting the type of dye donor element. One of said light source illuminates a dye frame whereas the other illuminate detection marks in a margin of the dye donor element. The thermal printing system according to the invention allows to distinguish between a dye donor element for color printing and black and white printing and according to an embodiment is also capable to detect further variants. The present invention further provides a dye donor element for use in such thermal printing system and to a method for detecting the type of dye donor element.

REFERENCES:
patent: 4551729 (1985-11-01), Kubo et al.
patent: 4573059 (1986-02-01), Shinma et al.
patent: 4590490 (1986-05-01), Takanashi et al.
patent: 4642655 (1987-02-01), Sparer et al.
patent: 5169828 (1992-12-01), Janssens et al.
patent: 5208464 (1993-05-01), Yonemoto et al.
patent: 5376618 (1994-12-01), Uytterhoeven et al.

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