Printing apparatus

A printing apparatus, comprising:

• a body including a container compartment, the container compartment being configured to store a roll, the roll including a rolled recording medium, the container compartment having an opening at one side along an orthogonal direction being orthogonal to a first direction, the first direction being a widthwise direction of the roll;
• a cover configured to be closable to cover the opening of the container compartment and openable to uncover the opening of the container compartment;
• a pair of supporting parts arranged in the container compartment and configured to support one side and the other side of the roll along the first direction, at least one of the pair of supporting parts being movable in the first direction;
• and
• a locking member arranged on a movable supporting part being one of the pair of supporting parts that is movable in the first direction, the locking member being movable between a locked position, in which the locking member restricts the movable supporting part from moving under a condition where the cover is closed, and an unlocked position, in which the locking member allows the movable supporting part to move under a condition where the cover is open;
• and
• an engaging portion arranged in the container compartment and configured to engage with the locking member being located at the locked position,
• wherein the locking member at the unlocked position under the condition where the cover is open is separated from the engaging portion;
• and
• wherein the locking member is configured to contact the cover and shift from the unlocked position to the locked position to be engaged with the engaging portion in a process where the cover being open is moved to be closed.