| 摘要 |
PROBLEM TO BE SOLVED: To achieve higher conveying speed by reducing rolling resistance to a platen roller while surely guiding a medium to be printed.SOLUTION: A portable compact printer device includes: a pickup roller picking up and conveying thermosensitive paper in a first direction going along a plane direction; a platen roller 9 conveying the thermosensitive paper conveyed in the first direction by the pickup roller while reversing it to a second direction being an opposite direction along its outer circumferential surface; a paper guide 10 including a circular-arc surface part 10a opposed along the outer circumferential surface of the platen roller 9; a coupling member 60 connecting between the paper guide 10 and the rotary shaft 9a of the platen roller 9 so that a prescribed gap ▵ may be kept between the circular-arc surface part 10a of the paper guide 10 and the outer circumferential surface of the platen roller 9; and a thermal head performing desired printing on the thermosensitive paper conveyed while being reversed in the second direction by the platen roller 9. |
