Ethernet and usb powered printers and methods for supplying ethernet and usb power to a printer

A printing device capable of obtaining power from at least one powered interface, the printing device comprising:

• a power and data interface in communication with the powered interface, the power and data interface being configured to separate data transmission from power transmission;
• a first power converter in communication with the power and data interface;
• a power storage controller in electrical communication with the first power converter;
• a power storage unit in electrical communication with the power storage controller;
• and
• a print mechanism in electrical communication with the power storage unit that receives electrical power from the power storage unit.

A printing device capable of obtaining power from at least one of an Ethernet network transmission line and a USB connection, the printing device comprising:

• a power and data interface in communication with at least one of a powered Ethernet communication port and a USB communication port, the power and data interface being configured to separate data transmission from power transmission;
• a first power converter in communication with the power and data interface;
• a printer control and image generating circuit in data communication with the interface and in electrical communication with the power converter;
• an Alternating Current-Direct Current (AC-DC) converter in electrical communication with an electrical transmission line and in electrical communication with the first power converter;
• and
• a print mechanism in data communication with the printer control and image generating circuit and in electrical communication with the AC-DC converter.

A method for providing at least one of Ethernet power and USB power to at least a portion of a printer device, the method comprising the steps of:

• receiving, at a printer device, a signal having a voltage component, the signal being at least one of an Ethernet network signal and a USB signal;
• converting the voltage component of the signal to a supply voltage;
• and
• providing operating power to a printer control and image generating circuit in the form of the supply voltage.

A method for providing at least one of Ethernet power and USB power to at least a portion of a printer device, the method comprising the steps of:

• receiving, at a printer device, a signal having a voltage component, the signal being at least one of an Ethernet network signal and a USB signal;
• converting the voltage component of the signal to a supply voltage;
• providing the supply voltage to a power storage controller;
• storing the supply voltage at a power storage unit;
• and
• providing operating power to a print mechanism in the form of supply voltage stored at the power storage unit.

A printing device configured to adjust the speed of a printing operation according to a power required for performing the printing operation, the printing device comprising:

• a power converter in communication with a power source;
• a print mechanism in communication with the power converter and configured to receive power from the power converter;
• and
• a controller in communication with the print mechanism, wherein the controller is configured to determine a required power for a printing operation of the print mechanism and adjust a speed of the print mechanism according to the required power such that the required power does not exceed an amount of power available from the power converter to the print mechanism.