Patent ID: 7758138

Claim:
A liquid jetting apparatus to which a liquid container is attached, the container containing a liquid and having a first device, the liquid jetting apparatus comprising: a first line; a second line; a first controller to be electrically connected to the first device via the first line; and a second controller to be electrically connected to the first controller via the second line, wherein the first controller includes: a processor that, in a first instance, executes a prescribed process in relation to the liquid container in response to a signal received from the second controller via the second line; a junction module that, in the first instance, puts the first line and the second line into mutually electrically disconnected state and that, in a second instance different from the first instance, puts the first line and the second line into mutually electrically connected state to make the second controller capable of communicating with the first device, and wherein in the first instance the junction module electrically connects the first line to a stable voltage.