Provided is an image forming apparatus including a hardware processor and an image forming section including an image bearing member and a lubricant application unit. The lubricant application unit includes a solidified lubricant stick, a lubricant brush, and a lubricant pressing part. The hardware processor controls the image bearing member and the lubricant brush according to a linear velocity ratio, a ratio of a surface velocity of the lubricant brush with respect to a surface velocity of the image bearing member in an initial stage of endurance. The linear velocity ratio is calculated based on an initial rubbing force and an ease of scraping of the lubricant. The hardware processor corrects the linear velocity ratio by a correction value of the linear velocity ratio calculated based on an endurance correction coefficient, the initial rubbing force, a terminal rubbing force, and the number of printed sheets by the image forming section.

According to an example, a conditioning device includes a first light emitting member to emit light towards a first segment of a path and a second light emitting member to emit light towards a second segment of a path. The first segment of the path is upstream an engagement point of the path at which the photoconductive surface is to contact a subsequent transfer member and the second region is downstream the engagement point. The light emitted by the first light emitting member is to set the photoconductive surface at a pre-transfer voltage and the light emitted by the second light emitting member is to set the photoconductive surface at a post-transfer voltage greater than the pre-transfer voltage.