Re-application of dye to a dye donor element of thermal printers

Details Re-application of dye to a dye donor element of thermal printers Re-application of dye to a dye donor element of thermal printers

1996-08-29

1997-12-02

Yan, Ren

Typewriting machines

Including interposed inking device for record-medium

Renovation of used ribbon

400198, B41J 3116

Patent

active

056928440

ABSTRACT:
Apparatus is disclosed for re-applying dye to a dye donor element of a dye transfer thermal printer. A reservoir contains a supply of dye that is thermally transferred from the reservoir to the dye donor element by diffusion of dye into the dye donor element. The reservoir has a diffusion controlled permeation membrane through which dye is delivered to the dye donor element, while inhibiting diffusion of a carrier, whereby the dye partitions between the reservoir and the dye donor element but the carrier does not.

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