Patent ID: 8041280

Claim:
A lubricant applying device comprising: a lubricant; and a lubricant applying unit that is a brush roller, the lubricant applying unit being arranged at a lubricant applying position that is opposed to an image carrier that moves in a predetermined direction and applies lubricant to the image carrier, the lubricant applying position being upstream of a cleaning position in the predetermined direction where a cleaning unit cleans residual toner from the image carrier, the lubricant applying unit having a collection rate X of 50% or less for collecting the residual toner from the image carrier in a state where the lubricant applying unit is new, wherein the collection rate X is obtained by X =( Ta−Tb )/ Ta× 100 where Ta is weight per unit area of the residual toner on an area of the image carrier that has not come into contact with the lubricant applying unit, and Tb is weight per unit area of the residual toner on an area of the image carrier that has come into contact with the lubricant applying unit.