Lubricant supply device and image forming device

An image forming device that forms an image on an image carrier, the image forming device comprising:

• a transfer unit that transfers an image formed on the image carrier to a transfer receiving member;
• a cleaning unit that contacts a surface of the image carrier after the transfer, and cleans the surface of the image carrier;
• and
• a lubricant supply device that supplies, to the image carrier, lubricant for decreasing friction between the surface of the image carrier and the cleaning unit, wherein the lubricant supply device comprises:
• a block of solid lubricant;
• a lubricant supply member disposed opposing the block of solid lubricant, the lubricant supply member scraping the lubricant from the block of solid lubricant and supplying the lubricant to the image carrier;
• and
• a spring applying a biasing force to the block of solid lubricant in a second direction inclined with respect to a first direction from the block of solid lubricant towards the lubricant supply member, a component of the biasing force in the first direction pushing the block of solid lubricant against the lubricant supply member, wherein
• positions of the spring and the block of solid lubricant relative to each other are such that, as the block of solid lubricant decreases due to the scraping by the lubricant supply member, the angle between the biasing force and the first direction decreases, and the component of the biasing force in the first direction increases.