Patent ID: 11914324
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The image forming apparatus according to claim 1,
wherein the controller is configured to further perform:
determining, in response to determining that the consumption state information stored in the first memory and the consumption state information stored in the second memory do not match each other:
whether a first number of image-formable sheets indicated by the consumption state information stored in the first memory is greater than a second number of image-formable sheets indicated by the consumption state information stored in the second memory; or
whether the first number of image-formable sheets is less than the second number of image-formable sheets;

determining, in response to determining that the first number of image-formable sheets is greater than the second number of image-formable sheets or that the first number of image-formable sheets is less than the second number of image-formable sheets, whether a difference between the first number of image-formable sheets and the second number of image-formable sheets is less than or equal to a prescribed value; and
updating, in response to determining that the difference between the first number of image-formable sheets and the second number of image-formable sheets is less than or equal to the prescribed value:
the consumption state information stored in the first memory with the consumption state information stored in the second memory; or
the consumption state information stored in the second memory with the consumption state information stored in the first memory, and

wherein the prohibiting is performed in response to determining that the difference between the first number of image-formable sheets and the second number of image-formable sheets is greater than the prescribed value.