Roll paper holder
AssigneeToshiba Tec Kabushiki Kaisha
InventorKengo Tsuchida
Life of this patent
Estimating the term…
Abstract
A roll paper holder is provided which rotatably holds belt-like paper to be conveyed towards a printing section when a roll of paper is obtained by winding the paper on an upstream side in a conveyance direction with respect to the printing section. The roll paper holder includes a side wall section in contact with both side ends of the roll of paper in a width direction to prevent the roll of paper from moving in the width direction. The holder further includes at least one protrusion located outside a range where it can contact with the side end of the roll paper to be held having the largest diameter in the side wall section. The at least one protrusion is configured to protrude by a predetermined dimension from a portion contacting with the side end to control a position of the paper in the width direction.
Claims20
A roll paper holder configured to rotatably hold a belt-like paper to be conveyed towards a printing section when a roll of paper is obtained by winding the paper on an upstream side in a conveyance direction with respect to the printing section, comprising:
- a side wall section in contact with both side ends of the roll of paper in a width direction to prevent the roll of paper from moving in the width direction;
- and
- at least one protrusion, located outside a range where the protrusion can contact with one of the side ends of the roll of paper, the at least one protrusion being configured to protrude by a predetermined amount from a portion contacting with the one of the side ends, so as to control a position of the roll of paper in the width direction.
A printing apparatus, comprising:
- a printer including a paper housing, a printing section and a discharge section;
- and
- a roll paper holder accommodated in the paper housing, the roll paper holder being configured to rotatably hold a belt-like paper to be conveyed towards the printing section when a roll of paper is obtained by winding the paper on an upstream side in a conveyance direction with respect to the printing section;
- a side wall section of the roll paper holder being arranged to contact with both side ends of the roll of paper in a width direction to prevent the roll of paper from moving in the width direction;
- and
- at least one protrusion of the roll paper holder being located outside a range where the protrusion can contact with one of the side ends of the roll of paper, the at least one protrusion being configured to protrude by a predetermined amount from a portion contacting with the one of the side ends, so as to control a position of the roll of paper in the width direction.
A method of controlling positioning of a roll of paper, comprising:
- positioning belt-like paper in a rotatable holder configured to convey the paper towards a printing section, and obtaining a roll of the paper by winding the paper on an upstream side in a conveyance direction with respect to the printing section;
- preventing movement of the roll of paper in a width direction by disposing a side wall section in contact with both side ends of the roll of paper in the width direction;
- and
- controlling the position of the roll of paper with respect to the width direction by arranging at least one protrusion outside a range where the protrusion can contact with one of the side ends of the roll of paper, the at least one protrusion being configured to protrude by a predetermined amount from a portion of the side wall section contacting with the one of the side ends.
Dependencies are inferred from the claim text.