Printer with mechanism for controlling recording medium tension

摘要

A printer has a mechanism to counter change in the tension of the recording medium to convey the recording medium with more precision. Such printer has a media conveyance mechanism that conveys a recording medium; a printhead that prints on the medium; a media supply mechanism that supplies the medium to the media conveyance mechanism; a movable member that can move to compensate and thus counter internal tension changes in the recording medium resulting from operation of the media conveyance and supply mechanisms; a detector that detects the movement or position of the movable member; and a control unit that controls the media supply operation based on output from the detector so that the movable member is urged back to or maintained in a home position.

主权项

1. A printer comprising:
a media conveyance mechanism that conveys a recording medium; a printhead that prints on the recording medium conveyed by the media conveyance mechanism; a media supply mechanism that supplies the recording medium to the media conveyance mechanism; a movable member that is positioned between the media conveyance mechanism and the media supply mechanism, and configured to move according to a change in the tension on the recording medium; a detector that detects the position or movement of the movable member; and a control unit that controls a supply operation of the recording medium by the media supply mechanism based on output from the detector so that the movable member is maintained in or urged back to a home position; wherein the movable member includes a lever that is configured to move, according to change in the tension of the recording medium.