Robbon box with ribbon loose-proof mechanism
The ribbon cassette (1) has a ribbon supply spool (2) and ribbon take up spool (16) that takes up ink ribbon (13) by rotating in one direction. The take up spool has a single wire rod (30) that resiliently engages by dropping down into space between two walls of engaging portion to prevent the spool...
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Format: | Patent |
Sprache: | eng |
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