Lubricant supply apparatus, the image forming apparatus and a process cartridge

The present invention provides a lubricant can be surely detected residual amount of the lubricant supply means becomes less than a set amount, the image forming apparatus and a process cartridge. Residual amount detecting unit (40) of the lubricant supplying apparatus comprising: a rotatably to the rotary member (41); a lubricant holding member (3d) of the contact protrusion (31d), the solid lubricant (3b) consumption of the pressing rotary member (41), so that the rotary member (41) rotation; and a detecting unit, for detecting the rotational fulcrum sandwiching the rotary member (41) in the rotary member (41) comes into contact with the projecting portion (31d of) comes into contact at the opposite side, for the detection. From the pivotal point of the rotary detecting member (41) to the distance from the detection portion (B) to (A) is a long distance from the pivotal point of the abutting portion abutting the protrusion (31d of) the.