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81. 发明申请

WO2020046330A1 DISPENSERS WITH PLUNGERS 审中-公开
公开(公告)号：WO2020046330A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/048805
申请日：2018-08-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： MOON, Jiwon , CHOI, Woongyong , STOREY, Matthew, James , WEST, Jefferson, Blake , NADEAU, Bennett, Alexander
IPC分类号： G03G15/08
摘要： In some examples, a print material particles dispenser, comprising: a print material area with an output area that includes an output channel that is positioned away from a central axis of the print material area, and a structure adapted to decrease a volume of the print material area to output print material particles through the output channel of the print material area.

82. 发明申请

WO2020046329A1 VALVE HOUSING ROTATION PREVENTION 审中-公开
公开(公告)号：WO2020046329A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/048798
申请日：2018-08-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： O'HARA, Steve A. , WILLIAMS, Kenneth , SCHALK, Wesley R.
IPC分类号： G03G15/08 , B41J2/175
摘要： In some examples, an apparatus can include a pawl including an anti-rotation surface and a spring, and a valve housing including a wedge, where the spring biases the pawl to a first position in response to the valve housing being at a closed position such that the wedge of the valve housing contacts the anti-rotation surface of the pawl to prevent rotation of the valve housing at the first position of the pawl.

83. 发明申请

WO2020046323A1 SYRINGE BODIES 审中-公开
公开(公告)号：WO2020046323A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/048775
申请日：2018-08-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： CHICK, Andrew P. , SMITH, Kenneth K. , MOON, Jiwon , LEE, Minul , STOREY, Matthew James , TRAN, An , NADEAU, Bennett Alexander , HICKMAN, Zackary Thomas
IPC分类号： B41J2/175 , G03G15/08 , B29C64/343
摘要： In some examples, an apparatus (100) can include a syringe body (101) including an electrical interface (415) at a side surface of the syringe body, an interface (613) at an end of the syringe body including an output at a distal surface of the syringe body, a print material particles reservoir located in the syringe body, and a structure (106) to adapt a volume of the print material particles reservoir to move print material particles out of the print material particles reservoir through the output, where in response to the volume adapting structure moving from a first position to a second position, a signal is transmitted by the electrical interface..

84. 发明申请

WO2020046310A1 LOCKING NOZZLES 审中-公开
公开(公告)号：WO2020046310A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/048722
申请日：2018-08-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： LAVIGNE, Mathew , LUKE, Jeffrey H.
IPC分类号： B05B1/32 , B65D47/26 , B67D7/02 , B41J2/175
摘要： An example of a device (100) may include a valve body (108); a printing substance dispensing nozzle (110) rotatable within the valve body (108) between a sealed orientation and a dispensing orientation; and a locking rod extending through a locking rod window (146) in the valve body (108) and into a locking rod channel (144) in the printing substance dispensing nozzle (110), wherein the locking rod is movable within the locking rod window (146) between a first position, fixing the printing substance dispensing nozzle (110) in the sealed orientation, and a second position allowing rotation of the printing substance dispensing nozzle (110) to the dispensing orientation.

85. 发明申请

WO2020046304A1 PRINT REFILL DEVICES 审中-公开
公开(公告)号：WO2020046304A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/048698
申请日：2018-08-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： LAVIGNE, Mathew , LUKE, Jeffrey H. , STOREY, Matthew James , WEST, Jefferson Blake , NADEAU, Bennett Alexander , HICKMAN, Zackary Thomas , TRAN, An
IPC分类号： G03G15/08 , B29C64/259 , B41J2/175
摘要： Examples described herein relate to a print particle refill device consistent with the disclosure. For instance, a print particle refill device may comprise a cap disk to form a barrier between the print particle refill device and a receptacle, a first liner adjacent to the cap disk to seal print particles in the print particle refill device, and an actuating liner to wipe print particles, when present, from the receptacle.

86. 发明申请

WO2020046302A1 ERROR DIFFUSION FOR PRINTING 审中-公开
公开(公告)号：WO2020046302A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/048690
申请日：2018-08-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： MOROVIC, Peter , MOROVIC, Jan
IPC分类号： G06F3/12 , H04N1/60
摘要： There are disclosed techniques for error diffusion for printing. For example, there is disclosed a device comprising a pixel selector, to select a pixel from an image to be printed, wherein the pixel is associated to a group of device state probabilities, wherein each device state probability describes a probability of choosing a particular device state, wherein each device state describes the quantity of each colorant to be used in correspondence of the pixel. The device may comprise a device state determiner, to choose the device state for the selected pixel on the basis of the device state probabilities associated to the selected pixel. The device may comprise a feedback chain, to diffuse device state probability errors to pixels to be subsequently selected. The feedback chain may include a selected pixel error determiner, to determine device state probability errors for each device state probability of the selected pixel. The feedback chain may include a neighbouring pixel selector, to choose neighbouring pixels among the pixels to be subsequently selected. The feedback chain may include a neighbouring pixel error modifier, to modify, for each neighbouring pixel, the determined device state probability errors according to criteria conditioned by metrics and/or classification data associated to the selected pixel and/or a group of previously selected pixels and the relative position between the neighbouring pixel and the selected pixel. The feedback chain may include an error diffuser, to diffuse the modified device state probability errors to the neighbouring pixels.

87. 发明申请

WO2020040759A1 PRINT APPARATUSES USING REUSABLE PRINT AGENT CONTAINERS 审中-公开
公开(公告)号：WO2020040759A1
公开(公告)日：2020-02-27
申请号：PCT/US2018/047544
申请日：2018-08-22
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： NEDELIN, Peter , SANDLER, Mark , PINES, Assaf , LIOR, Shai
IPC分类号： B41J2/175
摘要： A print apparatus is disclosed. The print apparatus comprises a container-receiving unit for receiving a reusable print agent container; a print agent reservoir for storing print agent to be consumed by the print apparatus during a printing operation; a pump for transferring print agent between a reusable print agent container positioned in the container-receiving unit and the print agent reservoir; and processing circuitry. The processing circuitry is to operate the pump to transfer print agent of a first concentration from the reusable print agent container to the print agent reservoir; and, responsive to determining that a volume of print agent of the first concentration in the reusable print agent container has fallen below a threshold volume, operate the pump to transfer a volume of print agent of a second, lower concentration from the print agent reservoir to the reusable print agent container. A method and a machine-readable medium are also disclosed.

88. 发明申请

WO2020040754A1 FILTERING PRINTING FLUID 审中-公开
公开(公告)号：WO2020040754A1
公开(公告)日：2020-02-27
申请号：PCT/US2018/047428
申请日：2018-08-22
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： PINES, Assaf , SANDLER, Mark , SCHWIMMER, Eran
IPC分类号： B41J2/20
摘要： Disclosed is a method to mitigate deterioration of printing fluid in a tank of a printer. The method comprises: draining printing fluid from a tank of a printer, and stopping the draining before the tank is empty, wherein the printing fluid comprises solids suspended in imaging oil, filtering the printing fluid drained from the tank, to separate at least some of the solids from the imaging oil, passing the filtered imaging oil to a reservoir; and then passing imaging oil from the reservoir to the tank. Also disclosed is a printer and a system to perform the method.

89. 发明申请

WO2020040739A1 INTERPOLATION AND SMOOTHENING OF THE GAMUT BOUNDARY 审中-公开
公开(公告)号：WO2020040739A1
公开(公告)日：2020-02-27
申请号：PCT/US2018/047175
申请日：2018-08-21
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： HUERTAS DELGADO, Juan Miguel , VILAR BENITO, Jordi
IPC分类号： H04N1/56
摘要： Disclosed herein is a method, in particular for interpolating and smoothening the gamut boundary of an image processing device. Color data are received. An initial surface corresponding to the color data in a color space is created and divided into first patches. A first one of the first patches is divided into second patches based on a topology of a second one of the first patches. Further disclosed are a corresponding machine-readable medium and a corresponding system comprising a storage device and a computing device.

90. 发明申请

WO2020027841A1 PRINTERS AND CONTROLLERS 审中-公开
公开(公告)号：WO2020027841A1
公开(公告)日：2020-02-06
申请号：PCT/US2018/044970
申请日：2018-08-02
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： GALLART DEL BURGO, Adria , CAMPA COLOMA, Alex , BAS FERRER, Jordi , BORRELL BAYONA, M.Isabel , GONZALEZ OLIVA, Andreu , RIUS ROSSELL, Marti
IPC分类号： B41F33/16 , B41L39/16 , G06F3/12
摘要： Example implementations provide a controller for controlling printing of a printer, the controller comprising: an input interface for accessing an image to be printed; an image processor to identify at least one selected feature within the image; and circuitry: a. to control printing of said at least one selected feature using a respective print operation; and b. to control printing of said image, other said at least one selected feature, using a further respective print operation; c. said respective print operation being different to said further respective print operation.

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