| 摘要 |
A printing roll release and retainer mechanism to facilitate the insertion of a printing roller into a printing head of a thermal printer and to facilitate the locking thereof to the printing head and to facilitate the removal of the printing roller from the printing head wherein a holder is provided for receiving and permitting withdrawal of the printing roller and a pair of oppositely spaced members is provided for to hold the shaft roller. A locking-release member is provided for the holder to facilitate locking of the roller to the printing head and removal therefrom, the oppositely spaced members have an arcuate configuration for receiving the shaft and is provided with a pair of portions extending from the ends of the arcuate configuration, the locking release member include spaced members with an arcuate configuration for receiving the shaft when the roller is inserted into the head, and a pair of members are provided for locking the roller to the printing head in one position of the locking-release member and for releasing the roller from the head in another position of the locking-release member. |
