LOGIC CIRCUIT Russian patent published in 2022 - IPC G06F13/42 B41J2/175 

FIELD: computing technology.

SUBSTANCE: invention relates to methods and apparatus for processing information. The technical result is achieved due to the method for operation of the logic circuit containing, in response to a first command directed at the address of the logic circuit linked with the replaceable component of the printing apparatus, via a serial data bus, wherein the first command indicates a first period of time, the stages of: by the logic circuit, generating a low voltage condition on the serial data bus based on the first period of time; monitoring the duration of the low voltage condition using a logic circuit timer without a reference to the clock signal of the serial data bus; and removing, outside of said period of time, the low voltage condition, so that the serial data bus enters a different, high and/or default, voltage state or condition.

EFFECT: implementation of management and control of replaceable components of printing equipment.

22 cl, 8 dwg