Printer capable of providing improved conveying performance for conveying printing medium

A printer comprising:

• a head configured to print one or more characters on a printing medium;
• a platen roller configured to nip the printing medium in cooperation with the head to convey the printing medium in a conveying direction;
• a support member supporting the head;
• a moving mechanism configured to move the support member between a nipping position and a separated position, the support member at the nipping position allowing the head to nip the printing medium in cooperation with the platen roller, the support member at the separated position allowing the head to be positioned farther from the platen roller than the head from the platen roller at the nipping position, the moving mechanism comprising:
• a driving portion configured to generate a driving force;
• a moving member including a first connecting portion connected to the support member through a resilient member that is resiliently deformable, the moving member being configured to move from a first pressure release position to a first operating position upon receipt of the driving force from the driving portion to move the support member from the separated position to the nipping position, the first connecting portion increasing an amount of resilient deformation of the resilient member in association with change in position of the moving member from the first pressure release position to the first operating position, the moving member at the first operating position urging the head toward the platen roller;
• a protruding portion protruding from the moving member in a prescribed direction;
• and
• a connecting member connecting the support member and the protruding portion and configured to move in a specific direction from a second pressure release position to a second operating position in conjunction with a movement of the moving member from the first pressure release position to the first operating position, the connecting member having an opposing portion, the opposing portion facing the protruding portion at a position downstream of the protruding portion in the specific direction;
• a positioning member positioned upstream relative to the platen roller in the conveying direction, the positioning member having a prescribed portion configured to contact the printing medium conveyed and nipped between the head and the platen roller, the positioning member being configured to fix a position of the printing medium with respect to a perpendicular direction that is perpendicular to the conveying direction, the prescribed portion and the head providing an imaginary straight line extending therebetween when the head is at a position that nips the printing medium in cooperation with the platen roller;
• and
• a displaceable member supported by the support member and configured to move along a prescribed path in conjunction with a movement of the support member between the nipping position and the separated position, the prescribed path intersecting the imaginary straight line.