Sheet roll holder and tape printer

摘要

A tape printer (1) includes a holder support member (15) at one side end in a roll sheet holder storage part (4) in a direction substantially perpendicular to a feeding direction. In the holder support member (15), a mounting piece (13) which is substantially rectangular in section and formed protruding outward on a positioning holding member (12) of a roll sheet holder (3) is fitted. The tape printer (1) further includes a flat portion (21) formed substantially horizontally between a rear edge of an insertion opening (18) through which a roll sheet (3A) is inserted into the tape printer. On the flat portion (21), a front portion of a guide member (20) is placed. At a rear edge of the flat portion (21) in the feeding direction, at plural positions corresponding to various kinds of the roll sheets (3A) having different widths, there are formed four second positioning grooves (22A-22D) in which part of the guide member (20) is fitted.