| 摘要 |
In an apparatus for printing, e.g. a 35 mm slide (1) mounted on a support (4), dye is transferred to a receiver portion of the slide (1) from a dye donor ribbon (2) mounted in a cassette (3) using a modulated scanning laser beam (8) that is focussed into the ribbon (2) by a rod lens (7). After dye transfer, the slide (1) is moved opposite to an array of flash tubes (9) which produce a flash rich in infrared light to fix the transferred dye into the slide. The invention provides a shield (11) e.g. polycarbonate between the tubes (9) and slide (1) to protect the tubes from dye resublimed from the slide (1) by the flash fixing. The shield (11) is disposable and may be mounted on the cassette (3). The resublimed dye will build up on the shield (11), rather than on the tubes (9), but the shield (11) will be thrown away (once the cassette (3) is used up) before the dye build-up affects the fixing. |
