Patent ID: 8521970

Claim:
A method of updating memory modules, comprising: receiving, at a first memory module, a first command transmitted from a single processor; transmitting, from the first memory module to the single processor, a first indication that the first command was received without error; receiving at a second memory module, a second command transmitted from the single processor, wherein the single processor transmits the second command to the second memory module in response to receiving the first indication transmitted from the first memory module; and transmitting, from the second memory module to the single processor, a second indication that the second command was received without error, wherein the first and second memory modules process the respective first and second commands, at least in part, concurrently; wherein the first command is indicative of usage of toner or ink in a consumable item for an imaging device for instructing the first memory module to punch out at least one bit of at least one specified bit field within the first memory module indicative of the usage of toner or ink.