| 摘要 |
In a first aspect of the invention, a method is provided for operating a thermal printer adapted to print images by transferring donor material from patches of donor material from a donor ribbon onto a receiver medium, said printer being operable to print images in a manner that exhausts a full donor patch set or a fractional donor patch set during printing. In accordance with the method, a print order is received and it is determined whether a fractional donor patch set is available for printing. An image is printed using donor material from the fractional donor patch set where at least part of the print order can be satisfied using donor material from the fractional donor patch set.
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