Abstract: A customer replaceable unit installable in a printing apparatus comprises a component requiring high voltage electric power for operation, a low voltage power input, and that cooperates with the low voltage power input in order to transform low voltage electric power from the low voltage power input into high voltage electric power for use by the component. The customer replaceable unit may also include a low voltage signal input, and the high voltage power supply unit controls output of the high voltage electric power in response to signals received at the low voltage signal input. The signals received at the low voltage signal input are independent of a type of the component in the customer replaceable unit, and the high voltage power supply unit provides an appropriate high voltage for the type of the component, thereby allowing modification of the type of component without having to provide a different low voltage signal.

Abstract: An intelligent communicating supply storage unit is provided, tailored to storing one or more replaceable components for one or more supply-consuming devices. The storage unit may provide capabilities: (a) to sense a presence or absence of replaceable components for associated devices, which may include determining that the correct components are available, and to monitor a status of an internal characteristic of a stored replaceable component by accessing information stored on an externally readable component monitoring module attached to the stored replaceable component; (b) to maintain an updated inventory of the status of supplies on hand to include introduction of supplies into the storage unit for storage, and removal of supplies from the storage unit for use of disposal; and/or (c) to communicate storage unit supply status or inventory from the storage unit to an external source such as, for example, a supply providing organization.

Abstract: Systems and methods for monitoring a replaceable component of a device may include a monitor located on the replacement component. The monitor may include a controller, a memory, and a first communicator that communicates with a second communicator in the device. The monitor may further include a sensor on the monitor that is capable of sensing at least one property of the replaceable component and/or the contents of the replaceable component. The monitor may include a parasitic power generator.