a controller for controlling an image heating device which includes first and second rollers for heating therebetween a toner image on a sheet , a first rubbing roller for rubbing the first roller , and a second rubbing roller for rubbing the second roller , said controller including a counter configured to count a number of heated sheets ; a first executing portion configured to execute rubbing by the first rubbing roller in accordance with an output of the counter ; a second executing portion configured to execute rubbing by the second rubbing roller in accordance with an output of the counter ; an acquiring portion execution instructions of an image glossiness improving mode operation provided by an operator ; and a determination portion configured to determine which roller or rollers of the first second rollers is to be rubbed in accordance with an output of the counter , when the acquiring portion acquires the execution instructions .