Disclosed are systems and methods for limiting movement of medium on an imaging apparatus comprising positioning the medium against an imaging surface, moving a moveable surface to sandwich the medium between the imaging surface and the moveable surface, and passing air through at least one opening disposed to reduce forces acting on the medium that are caused by air currents generated adjacent the imaging surface when the moveable surface is moved.
An air bearing sheet heater assembly is provided for heating a sheet in an ink imaging printer. It includes a heater plate that has a heating element and defines a first side of a sheet path through the heater assembly. It also includes at least one movable platelet that defines a second side of the sheet path, as well as, an air bearing assembly mounted to the at least one platelet. The air bearing assembly controllably creates an air bearing between the second side and the first side of the sheet path for moving and pneumatically spacing the front surface of the at least one movable platelet from the front side of the heater plate, thereby reducing stiction forces and friction along the sheet path through the air bearing sheet heater assembly.
