Patent ID: 8764327
Filing Date: 2014-07-01
Classification: B41J

Abstract:
1. A roll paper supply mechanism comprising: a roll paper storage unit that stores a roll paper of a recording paper so that the roll paper can roll, wherein when unrolling the recording paper from the roll paper in the unit, the recording paper separates from the roll paper at a paper pulling position that moves relative to a vertical line extending through a center of gravity of the roll paper as the roll paper unrolls; and an urging member having an urging surface that urges at least one of a left end surface and a right end surface of the roll paper stored in the roll paper storage unit, wherein the urging member is sized such that at least a portion of the urging surface contacts the respective end surface of the roll paper as the roll paper unrolls and remains above the recording paper pulling position during unrolling of the recording paper, the urging surface being disposed horizontally between the vertical line that extends through the center of gravity of the roll paper and the recording paper pulling position of the roll paper, and vertically so that the urging surface contacts an outside circumference edge part of the roll paper above the recording paper pulling position during unrolling of the roll paper.