PAPER ROLL DEVICE WITH A PAPER ROLL DETECTING FUNCTION

摘要

A paper roll device includes a casing, two rollers, a lever, a resilient component, a detecting module and a control module. The two rollers are installed inside the casing and for supporting a paper roll cooperatively. An end of the lever is disposed between the two rollers, and the lever pivots around a shaft. The paper roll sinks to contact the end of the lever, so as to push the end of the lever in a first direction. The resilient component is connected to the lever and for supporting the lever in a second direction opposite to the first direction. The detecting module is for detecting a position state of the other end of the lever, so as to generate a corresponding detecting signal. The control module is electrically connected to the detecting module and for determining a using state of the paper roll according to the detecting signal.

主权项

1. A paper roll device, comprising:
a casing; two rollers installed inside the casing, the two rollers being for supporting a paper roll cooperatively; a lever installed inside the casing, an end of the lever being disposed between the two rollers, the lever pivoting around a shaft, the paper roll sinking to contact the end of the lever, so as to push the end of the lever in a first direction; a resilient component installed inside the casing and connected to the lever, the resilient component being for supporting the lever in a second direction opposite to the first direction; a detecting module installed inside the casing, the detecting module being for detecting a position state of the other end of the lever, so as to generate a corresponding detecting signal; and a control module installed inside the casing and electrically connected to the detecting module, the control module being for determining a using state of the paper roll according to the detecting signal generated by the detecting module.