| 摘要 |
The present invention relates to replacing by a heating pipe the heating roller in a copying machine, facsimile machine, laser printer so on. The goal of the invention is achieved by a printing device having a heating pipe-roller for outputting a printed matter through the heating and pressing of toner and recording sheet, which comprises: a hollow heating roller (12) rotatable and having the pipe form of predetermined length; a pressing roller (50) rotatable together and in contact with the heating roller (12) for heating and pressing the toner on the recording sheet; an inner pipe (13) provided concentric with and inside the heating roller (12); an operating liquid (17) existing between the heating roller (12) and the inner pipe (13); a plurality of blades protruding inward from the inner surface of the hollow heating roller (12), the blades being fixed at the heating roller; the first and second finishing plates (5,6) for sealing the opposite ends of both the heating rollers (12) and the inner pipes (13) to prevent the leakage of the operating liquid (17); a wick (14) provided on the outer surface of the inner pipe (13) and adapted to absorb the operating liquid (17); and a heater (15) provided axially inside the inner pipe (13). |
