| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for reliably stopping a roll paper when a power source is abnormal such as during power outage and preventing the roll paper from slackening during the power outage. SOLUTION: A movable base 30, on which a claw member 33 biased by the pull-back force of a spiral spring 25 is mounted, is provided on a slide rail 28 surrounding a braking gear 22 provided on an air shaft 15 supporting a roll paper. A solenoid shaft 32 is slipped out from a latch groove 33b during the power outage and a fitting claw 33a of the claw member 33 is fitted to the braking gear 22. The pull-back force of the spiral spring 25 is transmitted to the air shaft 15 to stop the inertial rotation of the roll paper and then wind the roll paper. Thus, the stop of the inertial rotation of the roll paper during the power outage and the slackening of a continuous paper delivered from the roll paper are prevented. COPYRIGHT: (C)2011,JPO&INPIT |
