Abstract: An embodiment of an electronic assembly may include a power meter, a network interface, and a processing unit to log data received from the power meter and upload the data through the network interface, wherein the processing unit operates an extensible run-time environment for add-on software modules. Another embodiment of an electronic assembly may include a meter interface, a network interface, and a processing unit to perform power calculations on signals received at the meter interface, log meter data from the power calculations, and upload the meter data through the network interface, wherein the processing unit operates an extensible run-time environment for add-on software modules.

Abstract: An ink delivery system includes a plurality of ink supplies, an air pressure source to generate ink pressure for each ink supply, an ink valve associated with each ink supply, where each ink valve is configured to prevent a reverse flow of ink from a pen to the associated ink supply, and each ink valve has a switch configured to provide an open signal when the ink valve is open, and a controller configured to determine one of a normal ink condition, an out of ink condition or a system pressure problem based on receiving the open signals and to regulate the pressure source according to the determination.

Abstract: An ink delivery system includes a plurality of ink supplies, an air pressure source to generate ink pressure for each ink supply, an ink valve associated with each ink supply, where each ink valve is configured to prevent a reverse flow of ink from a pen to the associated ink supply, and each ink valve has a switch configured to provide an open signal when the ink valve is open, and a controller configured to determine one of a normal ink condition, an out of ink condition or a system pressure problem based on receiving the open signals and to regulate the pressure source according to the determination.