| 摘要 |
In order to be capable of freely mounting a plurality of paper rolls having different diameters in an unused (new) state according to a choice of a user, and to increase convenience for a user, a paper feeding device 3 that feeds a sheet of a paper roll 2a (2b) to a printing device includes two side plates 8b vertically arranged along both side surfaces of the paper roll 2a (2b), each of the side plates 8b including a plurality of notches 11, 13 which are capable of bearing-supporting the paper rolls 2a (2b) having different diameters in an unused state, one of the side plates 8b including: a near end sensor 9 that detects a remaining amount of the paper roll 2a (2b); and a linear groove 16 that causes the near end sensor 9 to slide in two directions moving close to and away from the paper roll 2a (2b) bearing-supported by each of the notches 11, 13.
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