| 摘要 |
A label printer can continue to print labels without causing a paper jam even when the label detector is not operating. During label printing by the label printer 1 , this method confirms if the label detection operation of the optical sensor 14 disposed near the label dispensing slot 3 is normal or not (step ST 2 ). If normal, the next label printing operation starts automatically after a label is printed and the optical sensor 14 detects that the label has been removed from the label dispensing slot 3 (steps ST 3, 4, 5 ). If not normal, an error indicating LED flashes to inform the operator and operation switches to a manual label printing mode in which the optical sensor 14 is not used and starting the next label printing operation waits for manual input (steps ST 6, 7, 8 ). Labels can still be printed when the optical sensor 14 is not operating normally.
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