Hewlett-Packard Patent Applications

GENERATION OF THREE-DIMENSIONAL OBJECTS

Granted: April 27, 2017
Application Number: 20170113414
According to one example, there is provided a system for managing the generation of three-dimension objects by an additive manufacturing system. The system comprises a processor to receive one or multiple virtual objects, to generate a spatial arrangement of those objects within a virtual build volume, to control an additive manufacturing system to process the virtual build volume, to modify the virtual build volume in response to a request, and to control the additive manufacturing…

SEQUENCING PRINTERS

Granted: April 27, 2017
Application Number: 20170113459
Staged sequencing of printers can include copy firing instructions, assigned to a plurality of shift registers of a printer via a first network, to a plurality of parallel registers and providing, via a second network, a primitive sequence including a respective firing order of each of a plurality of primitives included in the primitive sequence to the parallel registers.

A HANDLE OF A PRINTHEAD MOVABLE BETWEEN A FOLDED POSITION AND A NON-FOLDED POSITION

Granted: April 27, 2017
Application Number: 20170113475
A printhead includes a printhead housing and a handle. The handle is movably coupled to the printhead housing. The handle rotatably moves with respect to the printhead housing between a folded position and the non-folded position. In the folded position, the handle extends along a respective housing surface of the printhead housing. In the non-folded position, the handle extends outward from the respective housing surface of the printhead housing.

DATA PLANE TO FORWARD TRAFFIC BASED ON COMMUNICATIONS FROM A SOFTWARE DEFINED (SDN) CONTROLLER DURING A CONTROL PLANE FAILURE

Granted: April 27, 2017
Application Number: 20170118066
Examples herein disclose detecting when a control plane within a switch suffers a failure. The failure of the control plane is communicated to a software defined networking (SDN) controller. A data plane forwards traffic based on communications with the SDN controller.

MODULES TO IDENTIFY NOZZLE CHAMBER OPERATION

Granted: April 20, 2017
Application Number: 20170106646
An example device in accordance with an aspect of the present disclosure includes modules to communicate an input signal to an ink sample to obtain an ink signal, compare the ink signal to a reference value, and identify an indicator of nozzle chamber operation corresponding to the ink signal. A module may be contained on an inkjet printhead die, such that the device may generate the input signal on the inkjet print head die.

ADDRESSING AN EPROM ON A PRINTHEAD

Granted: April 20, 2017
Application Number: 20170106648
Addressing an EPROM on a printhead is described. In an example, a printhead includes an electronically programmable read-only memory (EPROM) having a bank of cells arranged in rows and columns, each of the cells having a addressing port, a row select port, and a column select port. A conductor is coupled to the addressing portion of each of the cells. A shift register circuit is coupled to at least one of the row select port and the column select port of each of the cells, the shift…

FLUID EJECTION STRUCTURE

Granted: April 20, 2017
Application Number: 20170106651
A fluid ejection structure can include thermal resistors, a substrate, layers on the substrate, wherein said layers can include a region proximate to the resistor that has reduced field oxide.

RETENTION ASSEMBLY

Granted: April 20, 2017
Application Number: 20170108891
Example implementations relate to a retention assembly. One example retention assembly includes a support member extending from a printed circuit board. The support member includes a body region having a slot and a first flange extending from the body region. The retention assembly also includes a locking member slidably coupled to the support member via the slot. The locking member includes a second flange. The second flange includes a protruded region, and wherein the protruded region…

PROCESS IMAGE DATA

Granted: April 20, 2017
Application Number: 20170111546
A printing system and method to process image data is disclosed. The printing system includes an identification module and image pipeline module include a linear threshold array algorithm and a halftoning algorithm to process the image data. An image pipeline module applies a linear threshold array algorithm to line regions and a halftoning algorithm to the non-line regions.

MODIFYING COLOR GAMUTS

Granted: April 20, 2017
Application Number: 20170111551
Methods and apparatus for developing a color mapping for mapping colors from a source gamut to an output gamut are described. In an example, defects in a printed output image are used to identify a region of an initial output gamut associated with a defect. A modified output gamut may be developed, the modified output gamut excluding the identified region. A color mapping for use in mapping colors from the source gamut to the modified output color gamut for producing an output image may…

TO CALIBRATE A PRINTER

Granted: April 13, 2017
Application Number: 20170100942
A method to calibrate a printer, in which printing of a plurality of uniform area fills using a variety of combinations of at least first and second types of correction is controlled, both the first and second type of correction being varied in the variety of combinations; and in which measurement of optical density uniformity of the plurality of uniform area fills is controlled.

PRINT MEDIA GUIDE

Granted: April 13, 2017
Application Number: 20170100944
In one example, a media guide for use in a printer having a print bar and a print zone adjacent to the print bar includes a movable blocker downstream from the print zone along a media path and movable though a range of motion to block print media from leaving the media path when exiting the print zone,

MEDIA-SHEET STACKING SYSTEMS

Granted: April 13, 2017
Application Number: 20170101282
A media-sheet stacking system (10) for stacking media sheets on a device output tray (OT) comprises a kicker (25) to advance a media sheet along the output tray by pushing a trailing edge of the media sheet as it exits the device, and a movable element (32a) arranged to face the output tray across a space that receives media sheets exiting the device. A drive mechanism (33) is provided to drive the movable element in the direction of advance of the media sheet along the output tray.

REPRESENTING A METRIC FOR MARKETING CHANNELS

Granted: April 13, 2017
Application Number: 20170103414
Values of a target metric, and amounts spent on respective different types of channels for marketing an offering, are received. A first representation provides a response of the target metric to an amount spent on a marketing campaign of each of the different types of channels. A second representation provides a response of the target metric to time elapsed since the marketing campaign of each of the different types of channels. Models of the target metric for the corresponding different…

PRINTHEAD ASSEMBLY MODULE

Granted: April 6, 2017
Application Number: 20170096004
In one example, a printhead assembly module includes an upstream row of printheads and a downstream row of printheads. The upstream and downstream rows of printheads are offset from one another such that a printhead in the upstream row extends past the downstream row at one end of the module and a printhead in the downstream row extends past the upstream row at the other end of the module.

SYSTEMS AND METHODS FOR DEGASSING FLUID

Granted: April 6, 2017
Application Number: 20170096016
Systems and methods for degassing fluid are disclosed. An example fluid ejection device including a channel having an entrance and an exit; a supply slot in communication with the channel; a vent; a first bubble impeding structure at the entrance of the channel; and a second bubble impeding structure at an exit of the channel, the first and second bubble impeding structures to retain a bubble within the channel to enable the bubble to be vented through a vent and to deter the bubble from…

LOCATING A TARGET THROUGH MEDIA

Granted: April 6, 2017
Application Number: 20170096019
A printer is disclosed. The printer uses a target located on one side of media to position an image on the other side of the media. The printer backlights the media and uses a sensor that locates the target through the backlit media.

TOPIC RECOMMENDATION

Granted: April 6, 2017
Application Number: 20170097989
In one implementation, a system for topic recommendation includes an information engine receives topic information relating to a number of events. In addition, the system includes an analysis engine performs a text analysis on the received topic information. In addition, the system includes an index engine indexes the topic information based on the text analysis. In addition, the system includes a display engine compares a search term to the indexed topic information and displays a…

RADIO FREQUENCY IDENTIFICATION CAPSULE

Granted: April 6, 2017
Application Number: 20170098148
An example radio frequency identification capsule is disclosed herein. An example radio frequency identification capsule includes a substrate layer; a radio frequency identification layer on the substrate layer, the radio frequency identification layer including a radio frequency identification tag formed from nanoparticle ink; and a protective layer surrounding the radio frequency identification layer.

MODULES TO EVALUATE INK SIGNALS

Granted: March 30, 2017
Application Number: 20170087829
An example device in accordance with an aspect of the present disclosure includes modules to generate an input signal, apply the input signal to an ink sample to obtain an ink signal, compare the ink signal to a reference value, and identify whether the ink signal is consistent with an ink signature. A module may be contained on an inkjet printhead die.