| 摘要 |
PURPOSE:To prevent a heat generating resistor from being electrostatically broken, by applying a conductive coating material to the surface of a protective layer provided on the resistor. CONSTITUTION:A conductive comprises a metallic powder, metallic fibers, carbon black, carbon fibers or the like as a conductive filler. In addition, an inorganic salt or a high molecular weight electrolyte may be used as a low- resistance treating agent, or a conductive treating agent formed from an oligomer or the like may be used. With the conductive coating material 11 provided on a protective layer 5, static electricity is not generated when the protective film 4 is slidden against the base film 7 of an ink film 6. Besides, if electrification occurs, the charged voltage is sufficiently low as compared with that in the case of using an insulating protective film 4. Since static electricity is hardly developed, electrostatic breakage of a heat generating resistor 4 is obviated. |
