Solid lubricant-coating device and image-forming apparatus

摘要

A solid lubricant-coating device 7 is provided with a solid lubricant 71 to be applied to the surface of a latent image-supporting member 1; a supply roller 72 for scraping and supplying the solid lubricant onto the surface of the latent image-supporting member by self rotation; a pressing unit 73 for pressing the solid lubricant onto the supply roller; a flattening unit 74 for forming a thin film of the supplied solid lubricant on the surface of the latent image-supporting member; and a cleaning unit 75 for removing the residual toner on the surface of the latent image-supporting member and recovering the solid lubricant thin film on the surface of the latent image-supporting member, wherein, when a thickness of the solid lubricant thin film immediately before the supply roller in the rotation direction of the latent image-supporting member is designated as thickness A (nm) and a thickness immediately after the flattening unit is designated as thickness B (nm), the thicknesses A and B satisfy the following relational formulae (1) and (2) : B-A ‰¥ 8 (1) and A ‰¥ 4 (2).