Assisting movement of dye receiver past thermal print head

Details Assisting movement of dye receiver past thermal print head Assisting movement of dye receiver past thermal print head

1993-02-25

1995-03-21

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Thermal

40012016, 400225, 346136, B41J 2325

Patent

active

053990315

ABSTRACT:
A color thermal printer loads a dye receiver for printing by moving the dye receiver in a first direction through a gap between a print head and a platen. A dye donor, also positioned in the gap, moves in the first direction during receiver loading. The moving dye donor engages the dye receiver, assisting the dye receiver through the gap. When the dye receiver is detected downstream of the gap, the dye receiver is positioned in a beginning receiver print position and the position of the dye donor with respect to the print head is determined. If the print head position is downstream of a beginning donor print position, the dye donor is rewound in a second direction opposite the first direction until the print head is upstream of the beginning donor print position, whereupon the dye donor is moved to the beginning donor print position. If the print head position is upstream of the beginning donor print position when the dye receiver is detected, the dye donor is moved to the beginning donor print position. A normal printing sequence occurs when both dye donor and dye receiver are in their respective beginning print positions.

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