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公开(公告)号：US11312157B2
公开(公告)日：2022-04-26
申请号：US17049527
申请日：2018-08-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Duane A Koehler , Robert Yraceburu , Daniel James Magnusson
Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. A power grant is adjusted based on a contextual printing condition to provide an adjusted grant from the power source to a printing device heater system of the printing device heater systems.
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公开(公告)号：US20210229470A1
公开(公告)日：2021-07-29
申请号：US17250004
申请日：2018-08-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Duane A Koehler , Robert Yraceburu , Daniel James Magnusson
IPC: B41J11/00 , B41F23/04 , B41J29/393 , H02J1/14
Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. A power grant is adjusted based on an orientation of a medium to provide an adjusted grant from the power source to a printing device heater system of the printing device heater systems.
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公开(公告)号：US09975351B1
公开(公告)日：2018-05-22
申请号：US15418951
申请日：2017-01-30
Applicant: Hewlett-Packard Development Company, L.P.
CPC classification number: B41J11/0015 , B41J11/002
Abstract: In one example, a method for controlling temperature of a print dryer. High power is applied to a heater of the print dryer. A series of temperatures of the print dryer are periodically measured and stored until a target temperature for the print dryer is exceeded. Low power is applied to the heater after the target temperature is exceeded. A rate of temperature change at a time when the target temperature was exceeded is calculated from the stored temperatures. Using the rate, an initial heater duty cycle defining an initial heater power determined. PID control of the heater power is performed, beginning with the initial heater duty cycle, to maintain the print dryer temperature at the target temperature within a predefined accuracy.
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公开(公告)号：US11493866B2
公开(公告)日：2022-11-08
申请号：US17047634
申请日：2018-06-08
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jody L Clayburn , Lorraine T Golob , Daniel James Magnusson , Brooke Hoyer
Abstract: In some examples, a system is disclosed that includes a roller assembly for a printer. The roller assembly includes a pressure roller, a belt coupled, a drive assembly to rotate the pressure roller and to urge the pressure roller into the belt, a heater to apply heat to the belt, and a temperature sensor to detect a temperature of the belt. In addition, the roller assembly includes a controller to increase a pressure applied to the pressure roller from a first to a second pressure in pressure in response to a temperature of the belt being greater than or equal to a first temperature threshold. Also, the controller is to initiate an advance of a print media to contact the belt in response to the temperature of the belt being greater than or equal to a second, higher temperature threshold.
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公开(公告)号：US11231669B2
公开(公告)日：2022-01-25
申请号：US17250002
申请日：2018-08-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Duane A Koehler , Robert Yraceburu , Daniel James Magnusson
Abstract: Power allocation in printing devices is disclosed. A first load request is received from a first heater system having a first thermal time constant and a second load request is received from a second heater system having a second thermal time constant. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. The power grants include a first power grant based on the first load request and a second power grant based on the second load request. The power grants are adjusted to apportion a measure of the first power grant to the second power grant rather than provide the measure of the first power grant to the first heater system if a print substance density is within a selected print substance density threshold and the first load request is within a selected load threshold.
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Patent Agency Ranking
公开(公告)号：US20210221151A1
公开(公告)日：2021-07-22
申请号：US15733800
申请日：2018-08-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Duane A Koehler , Robert Yraceburu , Daniel James Magnusson
IPC: B41J11/00
Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems including an independent load request is received from a printing device heater system of the printing device heater systems. A power allowance of an amount of a power output is allocated to the printing device heater system if a print substance density is outside a print substance density threshold and the independent load request is outside a load threshold.
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公开(公告)号：US20210114384A1
公开(公告)日：2021-04-22
申请号：US17047976
申请日：2018-07-13
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Robert Yraceburu , Daniel James Magnusson
Abstract: According to examples, a heated system may include a heat generating device, a temperature sensor to detect temperature in the heated system, and a controller. The controller may store temperatures detected by the temperature sensor over time and based on a determination that the temperature in the heated system has reached a predefined temperature value, stop application of power to the heat generating device. The controller may also calculate a rate of change of the stored temperatures corresponding to a predefined period of time prior to the application of power to the heat generating device being stopped, may determine a seeding value for a control mechanism of the heat generating device based on the calculated rate of change, and based on aa determination that a predefined condition has occurred, control the control mechanism to apply power to the heat generating device beginning with the determined seeding value.
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公开(公告)号：US20190366735A1
公开(公告)日：2019-12-05
申请号：US16332056
申请日：2016-09-12
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Brooke Hoyer , Kenneth Blaine Wade , Daniel James Magnusson , Robert Yraceburu , Benjamin Whitney Griffith
IPC: B41J11/00 , B41J29/393 , G06K15/00 , B41J2/045 , G06K15/02
Abstract: According to an example, a printing system may include printing components, an input voltage engine to determine whether an input voltage level is outside of a predetermined voltage level range, and a printing components engine to control the printing components to operate in one of a normal mode and a reduced throughput mode based upon whether the accessed input voltage level is outside of the predetermined voltage level range.
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公开(公告)号：US20220009250A1
公开(公告)日：2022-01-13
申请号：US17294033
申请日：2018-12-21
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daniel James Magnusson , Robert Yraceburu , Timothy Jacob Luedeman
Abstract: In some examples, a system can include: a heating device, a Proportional Integral Derivative (PID) controller and a switching mechanism to selectively enable transmission of signals to the heating device based on a real time temperature in proximity to the heating device, wherein the PID controller is to continuously output pulse width modulation (PWM) signals independent of selective transmission of signals by the switching mechanism.
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公开(公告)号：US20210252848A1
公开(公告)日：2021-08-19
申请号：US17049527
申请日：2018-08-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Duane A Koehler , Robert Yraceburu , Daniel James Magnusson
IPC: B41F23/04
Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. A power grant is adjusted based on a contextual printing condition to provide an adjusted grant from the power source to a printing device heater system of the printing device heater systems.
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