Patent ID: 7607847
Filing Date: 2009-10-27
Classification: B41J

Abstract:
1. A paper carrying mechanism for a printer which comprises: a base frame; an upper frame rotatably coupled to the base frame; a platen and a platen pulley both rotatably supported by the upper frame; a subframe attached to the upper frame rotatably and movably in one direction; a reduction gear and a belt pulley both rotatably supported by the subframe; a drive gear rotatably supported by the base frame and engaged with the reduction gear; a drive belt stretched between the platen pulley and the belt pulley; and a spring attached between the upper frame and the subframe, the base frame having a guiding portion concentric with the drive gear, the subframe having a guided portion opposite the guiding portion, the spring applying tension to the drive belt and brings the guided portion into contact with the guiding portion.