| 摘要 |
PURPOSE:To enable to use an ordinary paper also, by a method wherein a plurality of rollers smaller in diameter than paper press rollers and provided with thin saw tooth form projections on the outside periphery thereof are provided between the paper press rollers, in an ink jet printer. CONSTITUTION:The paper-pressing mechanism provided above a platen 1 comprises a pair of paper press rollers 4 for pressing both ends of a paper 3 which rollers are provided on a shaft 6, and a plurality of rollers 5 which are provided between the rollers 4 and each of which is provided with a plurality of saw tooth form projections on the outside periphery thereof slightly smaller in diameter than the rollers 4. When ink jet printing is conducted, the surface of the paper 3 is wetted, the paper 3 is elongated, and wrinkles are generated, so that the paper 3 once brought into close contact with the platen 1 is levitated. In this case, since a plurality of rollers 5 are provided between a pair of paper press rollers 4, the levitation quantity can be dispersed, and the paper 3 can be prevented from making contact with a nozzle surface of a printing head 7. |
