Type of imaging cartridge chips and methods for responding to read/write consumable volume information in an imaging device

A method of operating an imaging cartridge chip to respond to read/write consumable volume information in an imaging device, the method comprising:

• receiving, from the imaging device, first consumable volume information and storing the received first consumable volume information;
• receiving, from the imaging device, second consumable volume information;
• obtaining, by the imaging cartridge chip, the first consumable volume information and transmitting the first consumable volume information to the imaging device when the imaging device requests reading consumable volume information stored in the imaging cartridge chip for determining a remaining consumable volume in an consumable cartridge;
• obtaining, by the imaging cartridge chip, the second consumable volume information and transmitting the second consumable volume information to the imaging device when the imaging device requests reading consumable volume information stored in the imaging cartridge chip to indicate the remaining consumable volume in the consumable cartridge, the second consumable volume information being less accurate than the first consumable volume information.