Media processing device

A media processing device comprising:

• a main frame;
• an openable unit that is attached to the main frame pivotably on a first pivot axis through a range from a closed position to an open position;
• a media transportation path that is formed between the openable unit in the closed position and the main frame for conveying a recording medium, and becomes open when the openable unit opens toward the open position;
• a lock member that is attached to the main frame movably between a locked position where it locks the openable unit in the closed position, and an unlocked position where the lock is released;
• an operating lever that can rotate relative to the main frame on a second pivot axis that is parallel to the first pivot axis at a different position than the first pivot axis, wherein the operating lever pivots about the second pivot axis at differing pivot positions along the operating lever through a range from a first pivot position through a second pivot position to a third pivot position;
• and
• a first cam mechanism that is disposed between the operating lever and the openable unit,
• converts rotation of the operating lever from the second pivot position to the third pivot position to rotation of the openable unit from the closed position to the open position, and
• converts rotation of the operating lever from the third pivot position to the second pivot position to rotation of the openable unit from the open position to the closed position.