Patent ID: 8857978

Claim:
A paper conveyance device for a printing device that prints information using a printhead on conveyed continuous paper, comprising: a paper conveyance mechanism having a paper feed roller and a pressure roller that hold and convey the continuous paper to the print area of a printhead; and a guide unit located upstream from the printhead that has two planar guide surfaces opposite each other and facing the continuous paper conveyed therebetween by the paper conveyance mechanism, and a plurality of ribs that are disposed to at least one of the two planar guide surfaces with a specific gap therebetween in the direction perpendicular to the conveyance direction, protrude to the continuous paper side, and extend in the conveyance direction, the rib located in the middle of the width of the conveyed continuous paper being the longest of the plural ribs in the conveyance direction, and the length in the conveyance direction of the other ribs becoming gradually shorter with proximity to the sides of the continuous paper width.