Control circuit, ink-jet head system, and control method

A control circuit comprising:

• a memory interface;
• a power interface;
• and
• an ASIC configured to:
• read out identifiers and voltage values from a memory via the memory interface, the memory storing the identifiers and the voltage values associated with the identifiers, the identifiers identifying actuators for jetting liquid, the voltage values corresponding to values of voltages to be supplied to the actuators;
• based on the read out voltage values, associate each of the read out identifiers with one of power circuits;
• detect whether failure occurs in any of the power circuits via the power interface, each of the power circuits being changeable in output voltage;
• and
• based on detection of the failure occurring in any of the power circuits, associate specified identifiers among the identifiers with a non-failure power circuit in which the failure does not occur, the specified identifiers associated with a failure power circuit, among the power circuits, in which the failure is detected.

A control method by a controller connected to power circuits, comprising:

• reading out identifiers and voltage values from a memory via a memory interface, the memory storing the identifiers and the voltage values associated with the identifiers, the identifiers identifying actuators for jetting liquid, the voltage values corresponding to values of voltages to be supplied to the actuators;
• based on the read out voltage values, associating each of the read out identifiers with one of the power circuits;
• detecting whether failure occurs in any of the power circuits via a power interface connected to the power circuits;
• and
• based on detection of the failure occurring in any of the power circuits, associating specified identifiers among the identifiers with a non-failure power circuit in which the failure does not occur, the specified identifiers associated with a failure power circuit, among the power circuits, in which the failure is detected.