Zih Corporation

Zebra Technologies Corporation

John Ham

Robert A Ehrhardt

David L Poole

Douglas A Fox

Rod DeMay

Gary F Lynch

Eugene K Brown

Donald V Thielen

An example disclosed method includes providing power transmissions from a power storage unit to a power converter of a printing device, the power converter to supply an available amount of power to a print mechanism, the print mechanism having separately controllable print elements; determining a required amount of power for an upcoming print operation that involves energizing the print elements, the print elements including a first group of the print elements and a second group of the print elements; when the required amount of power is less than or equal to the available amount of power, performing the print operation by simultaneously energizing the print elements; and when the required amount of power is greater than the available amount of power, performing the print operation by alternately energizing the first group of the print elements at first times and the second group of the print elements at second times.

Methods and apparatus for supplying power to a printer

Ethernet and Universal Serial Bus (USB) powered printing devices are provided. In particular, Ethernet and USB powered printers and methods of Ethernet powering of printers that support high speed printing and/or data intensive printing. Such high-speed and/or data intensive printing operations are able to be Ethernet or USB powered by providing for a power storage unit within the printer device that is able be charged during non-printing periods and provide for necessary energy bursts to support such higher powered processes. In addition, the present invention provides for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by Ethernet or USB power. Additionally, the invention provides for Ethernet or USB powering, both primary and back-up, of the data and configuration settings in the printer control and image generating electronics. In the back-up power mode, the Ethernet or USB power insures that data and configurations are not lost during periods of main power outage. The invention also provides a printer and method that can optimize a printing operation, e.g., by adjusting the speed of the printing operation according to the power required for the operation and/or the power available.

Ethernet and USB powered printers and methods for supplying Ethernet and USB power to a printer

Communication port powered printers and methods of powering of printers that support high speed printing and/or data intensive printing are discussed herein. Some embodiments may provide for a power storage unit within the printer device that is able be charged during non-priming periods and provide for necessary energy bursts to support such higher powered processes. Some embodiments may provide for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by the communication port. Some embodiments may further provide for configuration settings in printer control electronics based on the available power from the communication port.

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

Growing community of inventors

Agoura Hills, CA, United States of America

John Ham