Patent ID: 8744286

Claim:
An image formation apparatus to form an image on a print medium, comprising: a toner cartridge in which toner can be accommodated; a toner-amount detector configured to detect a toner amount in the toner cartridge; a display unit; an analyzer configured to make the display unit display a used condition of the image formation apparatus, when the image formation apparatus is in a small-amount mode where the toner amount is smaller than a threshold; a photosensitive member configured to retain toner image thereon; a storage configured to store therein a number of rotations of the photosensitive member; and a consumed-amount calculation unit configured to perform a first consumed-amount calculation mode for calculating a consumed amount of the photosensitive member in a normal mode in which the toner amount is equal to or greater than the threshold, and a second consumed-amount calculation mode for calculating the consumed amount of the photosensitive member in the small-amount mode in which the toner amount is smaller than the threshold, such that the consumed amount of the photosensitive member is calculated at a higher rate of increment in the second consumed-amount calculation mode than in the first consumed-amount calculation mode.