Compact pinch valve

An inkjet printer comprising:

• an ink container;
• a printhead;
• an ink line interconnecting the ink container and the printhead;
• an air line branched from the ink line;
• and
• a pinch valve for selectively pinching the air and/or ink lines, said pinch valve comprising:
• a body;
• a cam rotatably mounted on the body about a cam axis;
• a first pinch arm pivotally mounted on the body about a first pivot axis parallel with the cam axis, the first pinch arm comprising a first cam follower for engagement with the cam and a first pinch element for pinching the ink line;
• a second pinch arm pivotally mounted on the body about a second pivot axis parallel with the cam axis, the second pinch arm comprising a second cam follower for engagement with the cam and a second pinch element for pinching the air line;
• and
• a biasing mechanism for biasing the first and second pinch arms towards a plane containing the cam axis so as to urge the first and second cam followers against the cam,
• wherein the first and second pinch arms oppose each other on either side of the plane.