| 摘要 |
A printing apparatus ( 10 ) has at a printing station ( 11 ), a print head ( 12 ) with an array ( 13 ) of heating elements individually selectable by a computer controller ( 15 ), a feed path ( 16 ) for feeding carrier ribbon ( 18 ) through the printing station ( 11 ), the carrier ribbon ( 18 ) carrying a layer of thermally sensitive print medium, pixels of the thermally sensitive print medium being in use deposited on a print area of a substrate ( 20 ), by selectively energising the heating elements, as the substrate ( 20 ) and print head ( 12 ) are relatively moved, the apparatus ( 10 ) including a backing member ( 22 ) and the substrate ( 20 ) being positioned in use between the backing member ( 22 ) and the carrier ribbon ( 1.8 ), and wherein the print head ( 12 ) is mounted by a mounting structure ( 25 ) for generally linear movement towards and away from the substrate ( 20 ), one of the mounting structure ( 25 ) and print head ( 12 ) including a projecting part which projects towards the other and at least during printing engages with the other of the mounting structure ( 25 ) and print head ( 12 ), and there being a resilient member ( 31 ) between the mounting structure ( 25 ) and the print head ( 12 ) which allows resiliently resisted movement between the mounting structure ( 25 ) and the print head ( 12 ) with the projecting part engaged with the other of the mounting structure ( 25 ) and print head ( 12 ) and there being at least one fastener ( 30 ) to couple the mounting structure ( 25 ) and print head ( 12 ) together.
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