Image forming apparatus

An image forming apparatus comprising:

• a fixer that includes a fixing rotation body and a pressing rotation body between which a fixing nip is formed, and that heats and presses a fed sheet through the fixing nip so that a toner image formed on the sheet is fixed to the sheet;
• and
• a hardware processor that makes a velocity difference between a surface velocity of the fixing rotation body and a surface velocity of the sheet passing through the fixing nip during an operation in a high-gloss mode so as to adjust a gloss of the toner image formed on the sheet, wherein
• the hardware processor performs a control so that an absolute value of a velocity difference between the surface velocity of the fixing rotation body and a surface velocity of the pressing rotation body at a time when the sheet does not pass through the fixing nip with the fixing rotation body and the pressing rotation body being in press-contact with each other is less than an absolute value of the velocity difference between the surface velocity of the fixing rotation body and the surface velocity of the sheet at a time when the sheet passes through the fixing nip during the operation in the high-gloss mode.