Thermal printer

Details Thermal printer Thermal printer

B - Operations, Transporting

41

J

B41J 11/00 (2006.01) B41J 2/32 (2006.01) B41J 11/04 (2006.01) B41J 15/04 (2006.01)

Patent

CA 2467598

In order to provide a thermal printer which performs detection of the presence or absence of recording paper and detection of the attachment/detachment states of a platen roller with reliability using only one sensor and which has such a simple structure that it can be diverted to any kind system merely by changing some components, the thermal printer of the present invention comprises a main body frame, a thermal head for performing printing on recording paper and a head supporting member integrally provided at the back of the thermal head, a platen roller placed side by side with the thermal head, a bearing portion for rotatably and attachably/detachably supporting the platen roller; an urging unit for urging the thermal head in a direction in which the thermal head is brought into pressure contact with the platen roller, and a load detection type sensor provided at a position at which under a state where the recording paper exists below the platen roller and a shaft of the platen roller is supported by the bearing portion, the load detection type sensor is capable of being brought into pressure contact with the platen roller through the recording paper and changing into an ON state.

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