Printer

摘要

A printer, comprising: a paper feed shaft unit (70) configured to hold a roll of recording paper on which printing is to be performed, wherein the paper feed shaft unit (70) includes a helical projection part (71) at a surface of the paper feed shaft unit (70); and an arm unit (50) connected to an end of the paper feed shaft unit (70) in such a manner as to allow rotation of the paper feed shaft unit (70), wherein the helical projection part (71) is helically formed so as to be directed toward the end of the paper feed shaft unit (70).