Printing apparatus

A printing apparatus comprising:

• a printing unit, including a discharge port through which in is discharged, and configured to perform printing on a sheet;
• a first conveyance unit, including a rotating body, and configured to convey the sheet to the printing unit while nipping the sheet;
• a second conveyance unit, including a rotating body, provided on a downstream side of the first conveyance unit in a conveyance direction of the sheet, and configured to convey the sheet while nipping the sheet;
• a third conveyance unit, including a rotating body, provided on a downstream side of the second conveyance unit in the conveyance direction, and configured to convey the sheet while nipping the sheet;
• a switching unit, including an operation member, and configured to switch between a nip state of the second conveyance unit and a released state in which the nip state is released by moving the operation member;
• a support member arranged between the printing unit and the second conveyance unit, and configured to support the sheet at a support position;
• and
• a moving unit, including an actuator as a driving source, and configured to move the support member between the support position and a retreat position retreated from the support position,
• wherein when the sheet is conveyed by the third conveyance unit, the switching unit selectively switches between the nip state and the released state in accordance with a length of the sheet.