Patent ID: 11899388
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The image forming apparatus according to claim 1, wherein the controller is configured to execute, when the cumulative supplied toner amount is equal to or greater than a fourth threshold value, a toner exhaustion control process of causing the toner supply unit to operate until toner remaining in the case is exhausted completely, and
wherein the controller is configured to:
store, in the development memory, updated information regarding the cumulative received toner amount obtained by adding, to the cumulative received toner amount stored in the development memory, an amount of toner supplied from the case and received in the development chamber by the toner exhaustion control process; and
store, in the toner memory, updated information regarding the cumulative supplied toner amount obtained by adding, to the cumulative supplied toner amount stored in the development memory, an amount of toner supplied by the toner supply unit from the case into the development chamber by the toner exhaustion control process.