Printer

A printer comprising:

• a roll storage part configured to rotatably store a roll that winds a print-receiving medium around a predetermined axis;
• a feeder configured to pull out and feed said print-receiving medium from said roll;
• a printing head configured to perform desired printing on said print-receiving medium fed by said feeder;
• a first guide member configured to contact an end surface of said roll on one side in a width direction of said roll and guide said print-receiving medium in a width direction and provided to said roll storage part in an advanceable and retreatable manner along said width direction;
• a second guide member configured to contact an end surface of said roll on the other side in said width direction and guide said print-receiving medium in the width direction and provided to said roll storage part in an advanceable and retreatable manner along said width direction;
• and
• a driving gear for making said first guide member and said second guide member advance and retreat along said width direction in tandem with each other,
• said roll storage part comprising:
• a first through-hole provided along said width direction for guiding said first guide member in said width direction on a bottom surface;
• and
• a second through-hole provided along said width direction for guiding said second guide member in said width direction on the bottom surface;
• said first guide member comprising:
• a first driven part positioned above said bottom surface and configured to mesh with said driving gear and receive transmission of a driving force from said driving gear;
• and
• a first sandwiching part positioned below said bottom surface and configured to hold said first guide member in an advanceable and retreatable manner to said bottom surface by sandwiching said bottom surface with said first driven part;
• and
• said second guide member comprising:
• a second driven part positioned above said bottom surface and configured to mesh with said driving gear and receive transmission of a driving force from said driving gear;
• and
• a second sandwiching part positioned below said bottom surface and configured to hold said second guide member in an advanceable and retreatable manner to said bottom surface by sandwiching said bottom surface with said second driven part.