Patent application number | Description | Published |
20090109255 | Fluid ejection device - Embodiments of a fluid ejection device are disclosed. | 04-30-2009 |
20110176175 | Replaceable Printer Component Including a Memory Storing a Tag Encryption Mask - A replaceable printer component includes a memory and a communication link The memory stores a tag encryption mask and data. The data is stored in a plurality of portions of the memory where each portion is defined by a tag. The tag encryption mask indicates an encryption status of each portion of the memory defined by a tag. The communication link is configured to communicatively link the memory to a printer controller when the replaceable printer component is installed in a printing system. | 07-21-2011 |
20120019576 | REPLACEABLE PRINTING COMPONENT - A replaceable printing component is provided, including a fluid reservoir, an electrical storage device mounted on the fluid reservoir, and an identifier stored on the information storage device, wherein the identifier is fixed based on an initial volume of fluid stored in the fluid reservoir. | 01-26-2012 |
20130057606 | System and Method Using Ink Usage Adjustment Values - A method for tuning ink usage includes storing an ink usage adjustment value in a memory of an ink cartridge; and with a printing system utilizing the ink cartridge, adjusting an ink usage of the ink cartridge based on the ink usage adjustment value. An ink cartridge includes a memory for storing an ink usage adjustment value, the ink usage adjustment value based on ink usage properties of the cartridge. A printing system utilizing the ink cartridge adjusts an ink usage of the ink cartridge based on the ink usage adjustment value. | 03-07-2013 |
20130083096 | AUTHENTICATION SYSTEMS AND METHODS - In an embodiment, an authentication system includes a base unit to receive a replaceable supply device, a controller integrated into the base unit, known characteristic data accessible by the controller, and an authentication algorithm executable on the controller to authenticate the supply device if a known characteristic measured on the supply device matches the known characteristic data. | 04-04-2013 |
20130290360 | CONSUMABLE IDENTIFIER - A consumable product can have an identifier stored on a circuit or machine-readable medium. The identifier can be used to verify the authenticity of the consumable product. The integrity of the identifier can be verified based on an integrity check portion of the identifier. | 10-31-2013 |
20130335466 | CONTINUOUS INK SUPPLY APPARATUS, SYSTEM AND METHOD - A continuous ink supply (CIS) apparatus, a CIS printer system and a method of CIS employ a one-way valve having a minimum negative activation pressure. The apparatus includes an off-axis ink supply to source liquid ink to a printhead of a printer. The one-way valve is positioned between the off-axis ink supply and the printhead. The minimum negative activation pressure at a printhead side of the one-way valve is at least enough to substantially precludes drooling from the printhead. | 12-19-2013 |
20140059138 | SUPPLY ITEM MESSAGING - One example discloses a peripheral supply component. The peripheral supply component includes a supply item ( | 02-27-2014 |
20140211241 | AUTHENTICATION SYSTEMS AND METHODS - In an embodiment, an authentication system includes a supply device having a data storage chip with identification (ID) bit memory cells. The ID bit memory cells comprising a measured cell, pointer cells to store address information that points to the measured cell, and analog cells that store factory-measured analog information about the measured cell. | 07-31-2014 |
20140347419 | IMAGE FORMING SYSTEM AND METHODS THEREOF - An image forming system and methods are disclosed. The methods include detecting an ambient temperature of an image forming system by a first thermal sense resistor disposed in a first printhead to obtain a first detected ambient temperature, detecting the ambient temperature of the image forming system by a second thermal sense resistor disposed in a second printhead to obtain a second detected ambient temperature, and determining a temperature difference between the first detected ambient temperature and the second detected ambient temperature of the image forming system by a temperature variation module. | 11-27-2014 |