Mechanism for ink-transfer serial dot thermal printer

Details Mechanism for ink-transfer serial dot thermal printer Mechanism for ink-transfer serial dot thermal printer

B - Operations, Transporting

41

J

101/43

B41J 35/14 (2006.01) B41J 25/316 (2006.01)

Patent

CA 1232166

ABSTRACT An ink-transfer thermal serial dot printer has a mechanism switch- ing from a head-down state of the thermal head to a head-up state. The printer has a winding up mechanism for a take-up reel for an ink-transfer ribbon, the operation of which is performed or not performed in connection with the switching of the head-down or head-up state of the thermal head, causing the feeding of the ink-transfer ribbon during the spacing operation (in head- up state) of the printer to stop to save the ink-transfer ribbon. The switching mechanism involves a cam and cam follower giving rise to a virtually noiseless cam action. Also the inertia of the moving portion associated with the switching operation is minimized to increase the switching speed.

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