| 摘要 |
PURPOSE:To simplify a structure and to increase the operation speed, by heating a member to be heated using at least a superconductive material used on the surface thereof in a predetermined pattern to form the image corresponding to the pattern on a recording body. CONSTITUTION:When a polygon mirror 21 having the length corresponding to the width of recording paper 101 is rotated in the direction shown by an arrow and laser beam 31 is emitted from high output laser (heating means) to irradiate said mirror 21, the reflected beam thereof passes through a magnetic field generating coil 22 to scan a superconductive membrane 28. In this case, the part receiving the irradiation with laser beam of the superconductive membrane 28 absorbs a laser beam to rise in temp. and only this laser spot part loses the characteristics of a superconductor. The magnetic field passing through the laser spot part allows even the magnetic field repulsed by the superconductor at the part around said laser spot part to converge to become strong. The passage of this magnetic field 32 becomes possible, because a MgO substrate 27 is non-magnetic. The toner on a developing roller 26a is attracted to the recording paper 101 by said converged magnetic field 32 and bonded thereto to perform printing. |
