Printing device dryer setting

According to an example, an apparatus may include a controller and a non-transitory computer readable medium on which is stored instructions. The instructions may cause the controller to predict that a user is to instruct a printing device to perform a printing operation, in which the printing device includes a dryer, identify the user in response to the prediction, to access a user profile corresponding to the identified user, in which the accessed profile identifies a type of document that the identified user typically prints, and to adjust a setting of the dryer according to the identified type of document in the accessed profile.

POWER CONTROL BASED ON CUMULATIVE ERROR

In some examples, a system identifies a plurality of time periods in which a time period includes a power event and a zero power event. The system tracks a cumulative error value that is adjusted based on elimination of a power event or elimination of a zero power event in the time period. The system determines a value of a first term if a power event in the time period is eliminated, and determines a value of a second term if a zero power event in the time period is eliminated, and based on the cumulative error value, the value of the first term, and the value of the second term, decides between eliminating the power event in the time period and eliminating the zero power event in the time period. 1. A non-transitory machine-readable storage medium comprising instructions for controlling power , the instructions upon execution causing a system to:identify a plurality of time periods in which a time period of the plurality of time periods includes a power event and a zero power event;track a cumulative error value that is adjusted based on elimination of a power event or elimination of a zero power event in the time period; anddetermine a value of a first term if a power event in the time period is eliminated, and determine a value of a second term if a zero power event in the time period is eliminated, andbased on the cumulative error value, the value of the first term, and the value of the second term, decide between eliminating the power event in the time period and eliminating the zero power event in the time period.2. The non-transitory machine-readable storage medium of claim 1 , wherein the power event in the time period comprises an event to apply power to a component claim 1 , and the zero power event in the time period comprises an event to refrain from applying power to the component.3. The non-transitory machine-readable storage medium of claim 1 , wherein the instructions upon execution cause the system to:in response to deciding to eliminate the zero ...

PRINTING DEVICE DRYER SETTING

According to an example, an apparatus may include a controller and a non-transitory computer readable medium on which is stored instructions. The instructions may cause the controller to predict that a user is to instruct a printing device to perform a printing operation, in which the printing device includes a dryer, identify the user in response to the prediction, to access a user profile corresponding to the identified user, in which the accessed profile identifies a type of document that the identified user typically prints, and to adjust a setting of the dryer according to the identified type of document in the accessed profile. 115-. (canceled)16. An apparatus comprising:a controller; and track fluid coverage levels on documents printed by each of a plurality of users;', 'determine, for each of the plurality of users, a representative fluid coverage level for the documents that the user prints from the tracked fluid coverage levels;', 'associate, for each of the plurality of users, the determined representative fluid coverage level with a corresponding user profile;', 'store the associations with the user profiles in a data store; and', 'control a printing device dryer to operate at one of a plurality of settings based upon the representative fluid coverage level associated with the user profiles., 'a non-transitory computer readable medium on which is stored instructions that are to cause the controller to17. The apparatus according to claim 16 , wherein to track fluid coverage levels claim 16 , the instructions are further to cause the controller to:access print jobs from multiple user devices of the plurality of users;determine respective fluid coverage levels of documents corresponding to the accessed print jobs; andtrack the fluid determined fluid coverage levels of the documents.18. The apparatus according to claim 16 , wherein each of the plurality of settings corresponds to a respective range of representative fluid coverage levels claim 16 , and ...

Determinations of failure conditions based on power consumptions

A volt meter and a current meter may measure a voltage and a current for the calculation of power consumption. A controller may calculate the power consumption when a heating element is activated and when the heating element is deactivated. Based on the power consumptions when the heating element is activated or deactivated, a failure condition may be determined.

CONTROL OF PRINTER HEATING ELEMENTS BASED ON INPUT VOLTAGES

An apparatus may include a power connection to receive an input power and a volt meter coupled to the power connection. The volt meter may be to measure an input voltage of the input power. A controller may be coupled to a heating element and the volt meter. The controller may control the heating element based on the input voltage measured by the volt meter. 1. An apparatus comprising:a power connection to receive an input power;a volt meter coupled to the power connection, the volt meter to measure an input voltage of the input power;a heating element to heat a printer; anda controller coupled to the volt meter and the heating element, wherein the controller is to control the heating element based on the input voltage.2. The apparatus of comprising:a switch to couple the heating element to the power connection; anda pulse width modulator to provide a drive signal to the switch, the drive signal to control a state of the switch, wherein the control of the heating element by the controller includes control of the pulse width modulator.3. The apparatus of claim 2 , wherein the controller is to determine whether the input voltage is greater than a predetermined voltage value claim 2 , the control of the pulse width modulator includes application of a pulse width scaling factor to adjust a maximum pulse width of the drive signal when the input voltage is greater than the predetermined voltage value claim 2 , and wherein the pulse width scaling factor is based on the input voltage.4. The apparatus of claim 1 , wherein claim 1 , to control the heating element claim 1 , the controller is to limit a current draw of the heating element.5. The apparatus of comprising a temperature sensor to measure a temperature claim 1 , wherein the control of the heating element is based on the temperature.6. An apparatus comprising:a volt meter to measure an input voltage of an input power;a heating element to generate heat; anda pulse width modulator coupled to the heating element, the ...

AUXILIARY DEVICE IDENTIFICATION

An example system includes a primary device and at least one auxiliary device connected in series with the primary device. The auxiliary device has an identifier indicative of a position of the auxiliary device in the series. The identifier is based on a resistance value associated with the auxiliary device, the resistance value being based at least in part on an upstream device in the series. 1. A system , comprising:a primary device; andat least one auxiliary device connected in series with the primary device,wherein the auxiliary device has an identifier indicative of a position of the auxiliary device in the series, the identifier being based on a resistance value associated with the auxiliary device, the resistance value being based at least in part on an upstream device in the series.2. The system of claim 1 , wherein the upstream device is either the primary device or another auxiliary device.3. The system of claim 1 , wherein the resistance value is based on a first resistor in the upstream device and a second resistor claim 1 , the first resistor and the second resistor being in parallel.4. The system of claim 3 , wherein the upstream device is the primary device claim 3 , and the first resistor in the primary device has a resistance value different than the second resistor.5. The system of claim 1 , wherein the at least one auxiliary device includes a first auxiliary device claim 1 , a second auxiliary device and a third auxiliary device claim 1 ,wherein the resistance value associated with the first auxiliary device is based on a first resistor in the primary device and a second resistor in the second auxiliary device, the first resistor and the second resistor being in parallel,wherein the resistance value associated with the second auxiliary device is based on a third resistor in the first auxiliary device and a fourth resistor in the third auxiliary device, the third resistor and the fourth resistor being in parallel, andwherein the resistance value ...

Electronics hot plug protection

A system for reducing inrush current to an electronic component, the system including: a power supply, the power supply providing power at multiple non¬zero voltages; and the electronic component; wherein, when the electronic component is connected to the power supply, the power supply provides a first non-zero voltage to the electronic component and, in response to a signal from the electronic component, provides a second voltage, the second voltage being higher than the first voltage, to the electronic component.

ALIGNMENT CIRCUITS

In some examples an imaging device can include a fill port to receive a colorant container including an alignment circuit, a controller including a processing resource and memory resource including a non-transitory computer-readable instructions executable by the processing resource to detect a presence of a colorant container in a fill port of an imaging device, responsive to detection of the colorant container in the fill port, detect if the colorant container is properly inserted in the fill port, and cause a fill process to initiate responsive to detection that the colorant container is properly inserted. 1. An imaging device comprising:a fill port to receive a colorant container including an alignment circuit; detect a presence of a colorant container in a fill port of an imaging device;', 'responsive to detection of the colorant container in the fill port, detect if the colorant container is properly inserted in the fill port; and', 'cause a fill process to initiate responsive to detection that the colorant container is properly inserted., 'a controller including a processing resource and memory resource including a non-transitory computer-readable instructions executable by the processing resource to2. The imaging device of claim 2 , further comprising instructions to determine the colorant container is properly inserted if a determined amount of current or voltage is above a threshold current or voltage for a predetermined amount of time.3. The imaging device of claim 3 , further comprising instructions to determine the colorant container is improperly inserted if a determined amount of current or voltage is above a threshold current or voltage for less than a predetermined amount of time.4. A non-transitory computer-readable medium storing instructions executable by a processing resource to:detect, via an alignment circuit, if a colorant container is properly inserted in a fill port of an imaging device based on an amount of current passing through or a ...

Power allocation in printing devices

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. The adjusted grant is based on a power grant limit corresponding with the contextual printing condition.

Power allocation in printing devices

Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. A first load request is received from a first heater system and a second load request is received from a second heater system. 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 based on a contextual printing condition. The power grants are adjusted to apportion a measure of the second power grant to the first power grant rather than provide the measure of the second power grant to the second heater system if a print substance density is outside a selected print substance density threshold.

POWER DELIVERY SMOOTHING IN DEVICE STATE TRANSITIONS

According to examples, an apparatus may include instructions that may cause the processor to identify, for a first device state, a first set of active components of a device and to determine a first power demand level of the first set of active components for the first device state. The instructions may also cause the processor to determine that the device is to transition from the first device state to a second device state, to determine, for the second device state, a second set of active components of the device having a second power demand level that is within a predefined difference level of the first power demand level, the predefined difference level to smooth power delivery to the device between the first device state and the second device state, and to control application of power to the second set of active components during the second device state. 1. An apparatus comprising:a processor; and identify, for a first device state, a first set of active components of a device;', 'determine a first power demand level of the first set of active components for the first device state;', 'determine that the device is to transition from the first device state to a second device state;', 'determine, for the second device state, a second set of active components of the device having a second power demand level that is within a predefined difference level of the first power demand level, the predefined difference level to smooth power delivery to the device between the first device state and the second device state; and', 'control application of power to the second set of active components during the second device state., 'a non-transitory computer readable medium storing machine readable instructions that when executed by the processor, cause the processor to2. The apparatus of claim 1 , wherein the instructions are further to cause the processor to:control application of power to the second set of active components during the second device state according to ...

Integrated liftgate wire harness tether

A vehicle wire harness assembly is provided that, in addition to carrying electricity to and from a vehicle closure, acts as a tether that provides structural reinforcement to the vehicle closure during a crash event. The vehicle wire harness assembly includes a wire harness having electrical wires and a sheath. The electrical wires have an electrical wire tensile strength. The wire harness includes one or more reinforcing tendons configured such that the electrical wires and the reinforcing tendon(s) have a combined tensile strength that is at least 50 percent greater than the electrical wire tensile strength. Anchors retain the wire harness to a vehicle body and a body panel closure. Each anchor has a pull-out strength of at least 50 pounds.

HEATING LAMP AND RESISTIVE DRYER CONTROL

According to examples, an apparatus may include a processor and a nontransitory computer readable medium on which is stored machine readable instructions that are to cause the processor to generate a linear piecewise control signal based on an internal resistance of a heating lamp to control a rate of change of a phase angle of an applied voltage in the heating lamp until a peak current in the heating lamp is within a predefined threshold of a maximum current rating of an alternating current (AC) power source of a circuit. 1. An apparatus comprising:a processor; and 'generate a linear piecewise control signal based on an internal resistance of a heating lamp to control a rate of change of a phase angle of an applied voltage in the heating lamp until a peak current in the heating lamp is within a predefined threshold of a maximum current rating of an alternating current (AC) power source of a circuit.', 'a non-transitory computer readable medium on which is stored machine readable instructions that are to cause the processor to2. The apparatus of claim 1 , wherein the instructions are further to cause the processor to:based on the peak current in the heating lamp being within the predefined threshold, generate a half-cycle control signal to cause the heating lamp to heat a conditioning mechanism to a predefined temperature using the AC power source at a frequency of the AC power source; andgenerate a dryer control signal to cause a resistive dryer to be heated to a predefined dryer temperature.3. The apparatus of claim 2 , wherein the instructions are further to cause the processor to truncate the linear piecewise control signal before the peak current in the heating lamp is within the predefined current threshold of a maximum current rating of the AC power source of the circuit claim 2 , based on a nominal time consumed by the resistive dryer to be heated to a certain dryer temperature.4. The apparatus of claim 2 , wherein the instructions are further to cause the ...

Auxiliary module power supply

An example auxiliary module includes an external power supply interface to couple to an external power source, at least one subsystem to operate using power from the external power source, and a power controller coupled to the external power supply interface. The at least one subsystem is to receive control signals from a primary device. The power controller includes circuitry to provide power from the external power source to the at least one subsystem. The power controller is to further provide power control signals to the primary device.

FAILING COMPONENT IDENTIFICATION WITH ULTRASONIC MICROPHONE

In one example in accordance with the present disclosure, a method of identifying failing components using an ultrasonic microphone is described. According to the method, an ultrasonic audio signal generated during operation of a device is received at an ultrasonic microphone disposed within the device. The received ultrasonic audio signal is compared against a baseline ultrasonic audio signal for the device to detect deviations between the received ultrasonic audio signal and the baseline ultrasonic audio signal. Based on detected deviations between the received ultrasonic audio signal and the baseline ultrasonic audio signal being greater than a threshold amount, a failing component within the device is identified. 1. A method comprising:receiving, at an ultrasonic microphone disposed in a device, an ultrasonic audio signal generated during an operation of the device;comparing the received ultrasonic audio signal against a baseline ultrasonic audio signal for the device to detect deviations between the received ultrasonic audio signal and the baseline ultrasonic audio signal; andbased on detected deviations between the received ultrasonic audio signal and the baseline ultrasonic audio signal being greater than a threshold amount, identify a failing component within the device.2. The method of :further comprising converting the received ultrasonic audio signal from a time domain representation into a frequency domain representation; andwherein comparing the received ultrasonic audio signal against the baseline ultrasonic audio signal comprises comparing frequencies and amplitudes found in the frequency domain representation of the received ultrasonic audio signal against frequencies and amplitudes found in the frequency domain representation of the baseline ultrasonic audio signal to detect deviations.3. The method of claim 2 , wherein the deviations comprise deviations in amplitude claim 2 , deviations in frequency claim 2 , or combinations thereof.4. The method ...

Pause start-up routine of imaging device

Examples disclosed herein relate to an imaging device. Examples include a method for increasing the temperature of the imaging device by determining an internal temperature of the imaging device; determining if a start-up routine is to be initiated; pausing the start-up routine if the internal temperature is below a threshold temperature; and energizing at least one of a fan or heating element of the imaging device when the internal temperature is below the threshold temperature.

Flicker control

An example system includes a varying resistive device, a controllable resistive device, a power supply to power the varying resistive device and the controllable resistive device, and a controller to control operation of the varying resistive device and the controllable resistive device. The varying resistive device changes a power level used during operation. The controller includes a flicker control portion, wherein the flicker control portion is to control a power level at the controllable resistive device based on changes in the power level used by the varying resistive device to maintain a flicker level below a predetermined flicker threshold.

Power allocation in printing devices

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.

Print speed determination based on a power budget

A printing system including a print mechanism to print on a print medium; and a control unit coupled to the print mechanism. The control unit is to determine a page speed for the print medium based on a power budget value of a power supply and to cause the print mechanism to move the print medium through the printing system at the determined page speed.

Printing device dashboard

A modular dashboard for a printing device includes: a board; a cut-out in the board to accommodate user controls; a lateral portion of the board that is lateral to the cut-out to cover a pocket in the printing device for containing a device adding functionality to the printing device; and a fastener for removably attaching the board to the printing device.

Printing fluid supplies with displays and near-field communications

A print supply, the print supply to connect to a printing device to provide a print material to the printing device that includes a fluidic bag within a box to maintain a print material supply, a machine and human readable fluid gauge system that includes a microprocessor to transfer print material level information describing a level of print material within the bag, and a gauge display to represent the level of print material within the bag, and a near field communication device to transfer data describing a level of print material within the print liquid supply.

REDUCING VIBRATIONAL SOUNDS PRODUCED DURING EVACUATION PROCESSES

An additive manufacturing device for reducing vibrational sounds produced during an evacuation process includes a shaker connected to a build area of the additive manufacturing device, the shaker to vibrate the build area during the evacuation process to separate fused and non-fused build material of a cake and an exciting transducer to transmit a reducing signal during the evacuation process such that the reducing signal reduces vibrational sounds produced by the shaker before the vibrational sounds reaches a user. 1. An additive manufacturing device comprising:a shaker connected to a build area of the additive manufacturing device, the shaker to vibrate the build area during the evacuation process to separate fused and non-fused build material of a cake; andan exciting transducer to transmit a reducing signal during the evacuation process such that the reducing signal reduces vibrational sounds produced by the shaker before the vibrational sounds reaches a user.2. The additive manufacturing device of claim 1 , wherein the exciting transducer is located between a case of the additive manufacturing device and a wall of a build chamber.3. The additive manufacturing device of claim 1 , wherein the reducing signal is predetermined at time of manufacture of the additive manufacturing device by:characterizing an acoustical signature of the additive manufacturing device to identify frequencies of the vibrational sounds during the evacuation process;based on the frequencies of the vibrational sounds, determining specific frequencies that are to be reduced;setting the specific frequencies for the reducing signal such that the reducing signal at least partially reduces amplitude of the vibrational sounds at the specific frequencies associated with the vibrational sounds; andstoring the reducing signal in memory.4. The additive manufacturing device of claim 1 , wherein the reducing signal is produced during the evacuation process by:with a sensing transducer, receiving ...

Power allocation in printing devices

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.

Sequencing of loads using temperature

A sequence of loads within a system is determined during each of multiple time windows based on a determination of each load's temperature to a target value. The sequencing of the loads involves a determination as to whether the length of each time window is long enough to permit all of the loads to be sequentially activated in order to have their temperatures approximate the corresponding target temperatures. In some cases, the sequence of the loads is determined to be one that results in a monotonically changing power profile.

Power allocation in printing devices

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.

SEQUENCING AND STACKING GROUP SELECTION FOR HEATING COMPONENTS

According to examples, an apparatus may include a processor and a nontransitory computer readable medium storing machine readable instructions that when executed by the processor may cause the processor to receive a requested power demand from a first heating component and a second heating component, compare the requested power demand to a first threshold, and select a sequencing and stacking group of a plurality of sequencing and stacking groups for the first heating component and the second heating component corresponding to a result of the requested power demand being compared to the first threshold. The instructions may also cause the processor to control application of power to the first heating component and the second heating component according to the selected sequencing and stacking group. 1. An apparatus comprising:a processor; and determine a requested power demand for a first heating component and a second heating component;', 'compare the requested power demand to a first threshold;', 'select a sequencing and stacking group of a plurality of sequencing and stacking groups for the first heating component and the second heating component corresponding to a result of the requested power demand being compared to the first threshold; and', 'control application of power to the first heating component and the second heating component according to the selected sequencing and stacking group., 'a non-transitory computer readable medium storing machine readable instructions that when executed by the processor to2. The apparatus of claim 1 , wherein the selected sequencing and stacking group comprises a first time period claim 1 , a second time period claim 1 , and a third time period claim 1 , wherein the first time period includes a first sequence and stacking arrangement claim 1 , the second time period includes a second sequence and stacking arrangement claim 1 , and the third time period includes a third sequence and stacking arrangement.3. The apparatus of ...

Statuses of fill ports

In some examples, a controller may include a processing resource and a memory resource storing non-transitory machine-readable instructions that are executed to cause the processing resource to direct a clock signal of an imaging device to a fill port via a detection circuit of the imaging device, determine based on a state of a switch included in the detection circuit whether the fill port is open or closed, determine based on the state of the switch indicating the fill port is closed a status of the fill port, and in response to the status of the fill port being closed, determine based on a voltage of the clock signal whether the fill port is connected to a colorant container.

CONDITIONERS

A conditioner includes a pressure roller assembly, a heating element, a drive motor, a current sensor, a plurality of print media sensors, and a controller. The heating element heats the pressure roller assembly. The drive motor rotates the pressure roller assembly. The current sensor senses a current of the heating element. The plurality of print media sensors sense the movement of print media through the conditioner. The controller is to turn off the heating element in response to any one of detecting an anomaly in the sensed movement of the print media or detecting a sensed current outside a predetermined range. 1. A conditioner comprising:a pressure roller assembly;a heating element to heat the pressure roller assembly;a drive motor to rotate the pressure roller assembly;a current sensor to sense a current of the heating element;a plurality of print media sensors to sense the movement of print media through the conditioner; anda controller to turn off the heating element in response to any one of detecting an anomaly in the sensed movement of the print media or detecting a sensed current outside a predetermined range.2. The conditioner of claim 1 , wherein the controller is to detect anomalies in the sensed movement of the print media within two seconds of an anomaly and turns off the heating element.3. The conditioner of claim 1 , further comprising:a plurality of temperature sensors, each temperature sensor to sense a temperature of the heating element,wherein the controller is to turn off the heating element in response to any one of detecting a sensed temperature outside a predetermined range based on an operating state of each of the heating element and the drive motor or detecting an anomaly between the plurality of temperature sensors.4. The conditioner of claim 1 , wherein the controller comprises a plurality of application specific integrated circuits (ASICs) and each ASIC comprises a watchdog timer claim 1 , and the controller is to turn off the ...

REDUCE ZERO POWER EVENTS OF A HEATED SYSTEM

According to examples, an apparatus may include a processor that may identify a first period for a heated system, the first period including a first set of power events and a first zero power event for the heated system and may identify a second period for the heated system, the second period including a second set of power events and a second zero power event for the heated system. The processor may also borrow, from the second period, a portion of a second power event of the second set of power events and may apply the borrowed portion of the second power event to a first power event of the first set of power events during the first period to remove the first zero power event from the first period. 1. An apparatus comprising:a processor; and identify a first period for a heated system, the first period including a first set of power events and a first zero power event for the heated system;', 'identify a second period for the heated system, the second period including a second set of power events and a second zero power event for the heated system;', 'borrow, from the second period, a portion of a second power event of the second set of power events; and', 'apply the borrowed portion of the second power event to a first power event of the first set of power events during the first period to remove the first zero power event from the first period., 'a non-transitory computer readable medium storing machine readable instructions that when executed by the processor cause the processor to2. The apparatus of claim 1 , wherein the second period includes a second zero power event claim 1 , and wherein the instructions are further to cause the processor to:increase a duration of time of a second zero power event during the second period to compensate for the application of the borrowed portion of the second power event for the first period.3. The apparatus of claim 1 , wherein the instructions are further to cause the processor to:determine that the heated system is ...

Power allocation in printing devices

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.

Print substance reservoirs

An example printing device may comprise an indicator to convey information to a user, a print substance reservoir to house a print substance, where the print substance reservoir is communicatively coupled to a fill port, a sensor to determine when a refill container is connected to the fill port, a processing resource, and a non-transitory machine-readable medium storing instructions executable by the processing resource to transmit signals to the indicator responsive to an indication that the sensor has detected the refill container connected to the fill port, where the signals correspond to the information to be conveyed by the indicator, and authenticate the refill container.

Collective awareness of supplies

In one example, collective awareness of supplies includes several operations. A remaining level for each supply in a printer device within a fleet of printer devices is measured. A predicted usage model for each supply from a history of supply usage for printed pages over time in the printer device and other printer devices of the fleet of printer devices is calculated. A system intervention event based on the predicted usage model and remaining level for each supply in the printer device is determined. The system intervention event is communicated to a responsible party.

PRINTING FLUID SUPPLIES WITH DISPLAYS

A print supply to connect to a printing device to provide a print material to the printing device that includes a machine and human readable print material gauge system, that includes an integrated circuit including a data interface to transfer print material level information describing a level of print material within the print supply and a display to represent the level of print material within the print supply. 1. A print supply , the print supply to connect to a printing device to provide a print material to the printing device , comprising: an integrated circuit including a data interface to transfer print material level information describing a level of print material within the print supply; and', 'a display to represent the level of print material within the print supply., 'a machine and human readable print material gauge system, comprising2. The print supply of claim 1 , wherein the print material gauge system is machine writable via the data interface formed on the print supply.3. The print supply according to claim 1 , wherein the display is an e-ink display.4. The print supply according to claim 1 , wherein the display includes an optically machine-readable representation of data describing:a color of the print material within the print supply;expiration date of the print material within the print supply;a chemical composition of the print material within the print supply;a level of print material within the print supply;a depletion of the print material within the print supply;information describing a supplier;information that indicates that the print material has become defective; orinformation describing an owner of the print supply or customer who has received the print supply; orcombinations thereof.5. The print supply according to claim 1 , wherein the print supply is opaque.6. The print supply according to claim 1 , wherein the display is bi-stable so as to retain a state of display when power is removed.7. The print supply according to claim 1 ...

Prediction of end-of-life of a direct current (DC) motor

Described herein are techniques that facilitate the prediction of the end-of-life of a direct current (DC) motor of an apparatus. The described techniques include tracking end-of-life indicative motor-response values of a DC motor based on an applied-voltage value at its corresponding specified speed of the DC motor when the motor is engaged, in response to the determination that the tracked values exceed a range of acceptable operational values, a health-status notification regarding that DC motor is generated. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Power allocation in printing devices

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.

Vehicle closure panel with torsion bar assist and integral vibration damping

An automotive vehicle has a door adapted to pivot about a generally horizontal pivot axis, with the door including a shell defining a space surrounded by the shell. The door is pivoted upon bearings located at each end of the door. A torsion bar lift assist is provided with a vibration and noise isolator and damper, which is engaged about a central portion of the torsion bar. The damper prevents objectionable noise which could otherwise result in the event that the torsion bar strikes the shell of the door because of road-induced vibration.

Alignment circuits

In some examples an imaging device can include a fill port to receive a colorant container including an alignment circuit, a controller including a processing resource and memory resource including a non-transitory computer-readable instructions executable by the processing resource to detect a presence of a colorant container in a fill port of an imaging device, responsive to detection of the colorant container in the fill port, detect if the colorant container is properly inserted in the fill port, and cause a fill process to initiate responsive to detection that the colorant container is properly inserted.

Power delivery smoothing in device state transitions

According to examples, an apparatus may include instructions that may cause the processor to identify, for a first device state, a first set of active components of a device and to determine a first power demand level of the first set of active components for the first device state. The instructions may also cause the processor to determine that the device is to transition from the first device state to a second device state, to determine, for the second device state, a second set of active components of the device having a second power demand level that is within a predefined difference level of the first power demand level, the predefined difference level to smooth power delivery to the device between the first device state and the second device state, and to control application of power to the second set of active components during the second device state.

Sequencing and stacking group selection for heating components

According to examples, an apparatus may include a processor and a nontransitory computer readable medium storing machine readable instructions that when executed by the processor may cause the processor to receive a requested power demand from a first heating component and a second heating component, compare the requested power demand to a first threshold, and select a sequencing and stacking group of a plurality of sequencing and stacking groups for the first heating component and the second heating component corresponding to a result of the requested power demand being compared to the first threshold. The instructions may also cause the processor to control application of power to the first heating component and the second heating component according to the selected sequencing and stacking group.

Machine functionality adaptation based on power source impedance

In some examples, a system compares a first source impedance rating of a first mode of the machine to a source impedance of a power source, where the machine is operable in a plurality of modes associated with different source impedance ratings. The system enables the first mode of the machine in response to determining, based on the comparing, that the source impedance of the power source satisfies the first source impedance rating.

Sequencing and stacking group selection for heating components

According to examples, an apparatus may include a processor and a nontransitory computer readable medium storing machine readable instructions that when executed by the processor may cause the processor to receive a requested power demand from a first heating component and a second heating component, compare the requested power demand to a first threshold, and select a sequencing and stacking group of a plurality of sequencing and stacking groups for the first heating component and the second heating component corresponding to a result of the requested power demand being compared to the first threshold. The instructions may also cause the processor to control application of power to the first heating component and the second heating component according to the selected sequencing and stacking group.

Power allocation in printing devices

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.

Mechanical heating control

An example device comprises: a heater; a temperature sensor to monitor changes in temperature caused by the heater; a mechanical device to move the heater between a sample position and a rest position; and a circuit communicatively coupled to the heater, the temperature sensor, and the mechanical device. The circuit is to: control the mechanical device to move the heater to the sample position; control the heater to heat at the sample position; monitor, via the temperature sensor, the temperature; and in response to the temperature meeting a temperature condition, control the mechanical device to move the heater from the sample position to the rest position.

Print substance reservoirs

Power allocation in printing devices

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.

Reduce zero power events of a heated system

According to examples, an apparatus may include a processor that may identify a first period for a heated system, the first period including a first set of power events and a first zero power event for the heated system and may identify a second period for the heated system, the second period including a second set of power events and a second zero power event for the heated system. The processor may also borrow, from the second period, a portion of a second power event of the second set of power events and may apply the borrowed portion of the second power event to a first power event of the first set of power events during the first period to remove the first zero power event from the first period.

Heater power delivery

In some examples, a system includes a first heater and a second heater, and a controller to receive a power request indicating a power level for the second heater, in response to the power request, select a power delivery technique from among different power delivery techniques that employ different ways of delivering power to the first and second heaters, and cause powering of the first and second heaters using the selected power delivery technique.

Auxiliary module power supply

An example auxiliary module includes an external power supply interface to couple to an external power source, at least one subsystem to operate using power from the external power source, and a power controller coupled to the external power supply interface. The at least one subsystem is to receive control signals from a primary device. The power controller includes circuitry to provide power from the external power source to the at least one subsystem. The power controller is to further provide power control signals to the primary device.

Power allocation in printing devices

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.

Alignment circuits

Collective awareness of supplies

In one example, collective awareness of supplies includes several operations. A remaining level for each supply in a printer device within a fleet of printer devices is measured. A predicted usage model for each supply from a history of supply usage for printed pages over time in the printer device and other printer devices of the fleet of printer devices is calculated. A system intervention event based on the predicted usage model and remaining level for each supply in the printer device is determined. The system intervention event is communicated to a responsible party.

Mechanical heating control

An example device comprises: a heater; a temperature sensor to monitor changes in temperature caused by the heater; a mechanical device to move the heater between a sample position and a rest position; and a circuit communicatively coupled to the heater, the temperature sensor, and the mechanical device. The circuit is to: control the mechanical device to move the heater to the sample position; control the heater to heat at the sample position; monitor, via the temperature sensor, the temperature; and in response to the temperature meeting a temperature condition, control the mechanical device to move the heater from the sample position to the rest position.

Mechanical heating control

Print substance reservoirs

An example printing device may comprise an indicator to convey information to a user, a print substance reservoir to house a print substance, where the print substance reservoir is communicatively coupled to a fill port, a sensor to determine when a refill container is connected to the fill port, a processing resource, and a non-transitory machine-readable medium storing instructions executable by the processing resource to transmit signals to the indicator responsive to an indication that the sensor has detected the refill container connected to the fill port, where the signals correspond to the information to be conveyed by the indicator, and authenticate the refill container.

Sequencing of loads using temperature

Printing device dashboard

A modular dashboard for a printing device includes: a board; a cut-out in the board to accommodate user controls; a lateral portion of the board that is lateral to the cut-out to cover a pocket in the printing device for containing a device adding functionality to the printing device; and a fastener for removably attaching the board to the printing device.

Printing device dashboard

Auxiliary module power supply

An example auxiliary module includes an external power supply interface to couple to an external power source, at least one subsystem to operate using power from the external power source, and a power controller coupled to the external power supply interface. The at least one subsystem is to receive control signals from a primary device. The power controller includes circuitry to provide power from the external power source to the at least one subsystem. The power controller is to further provide power control signals to the primary device.

Collective awareness of supplies

In one example, collective awareness of supplies includes several operations. A remaining level for each supply in a printer device within a fleet of printer devices is measured. A predicted usage model for each supply from a history of supply usage for printed pages over time in the printer device and other printer devices of the fleet of printer devices is calculated. A system intervention event based on the predicted usage model and remaining level for each supply in the printer device is determined. The system intervention event is communicated to a responsible party.

Collective awareness of supplies

In one example, collective awareness of supplies includes several operations. A remaining level for each supply in a printer device within a fleet of printer devices is measured. A predicted usage model for each supply from a history of supply usage for printed pages over time in the printer device and other printer devices of the fleet of printer devices is calculated. A system intervention event based on the predicted usage model and remaining level for each supply in the printer device is determined. The system intervention event is communicated to a responsible party.

Sequencing of loads using temperature

A sequence of loads within a system is determined during each of multiple time windows based on a determination of each load's temperature to a target value. The sequencing of the loads involves a determination as to whether the length of each time window is long enough to permit all of the loads to be sequentially activated in order to have their temperatures approximate the corresponding target temperatures. In some cases, the sequence of the loads is determined to be one that results in a monotonically changing power profile.

Controllers to adjust print speed

An example device in accordance with an aspect of the present disclosure includes a controller to adjust print speed intra-page according to a response curve to substantially track a power curve of a power supply. The controller is to maximize print speed based on short-term energy data corresponding to present and future print data and long-term energy data corresponding to past print data, without exceeding a peak power output and a thermal limit of the power supply when printing according to the response curve.

Reduce zero power events of a heated system

According to examples, an apparatus may include a processor that may identify a first period for a heated system, the first period including a first set of power events and a first zero power event for the heated system and may identify a second period for the heated system, the second period including a second set of power events and a second zero power event for the heated system. The processor may also borrow, from the second period, a portion of a second power event of the second set of power events and may apply the borrowed portion of the second power event to a first power event of the first set of power events during the first period to remove the first zero power event from the first period.

Reduce zero power events of a heated system

Reduce zero power events of a heated system

Power allocation in printing devices

Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. A first load request is received from a first heater system and a second load request is received from a second heater system. 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 based on a contextual printing condition. The power grants are adjusted to apportion a measure of the second power grant to the first power grant rather than provide the measure of the second power grant to the second heater system if a print substance density is outside a selected print substance density threshold.

Adaptive connection of resistive elements and temperature-dependent resistive elements

Apparatus, systems, articles of manufacture, and methods to provide an adaptive connection of a resistive element and a temperature-dependent resistive element are disclosed. An example apparatus includes a temperature-dependent resistive element. The example apparatus further includes a resistive element. The example apparatus further includes a switch coupled to the temperature-dependent resistive element and the resistive element. The example apparatus further includes a current sensor to measure a current through the temperature-dependent resistive element. The example apparatus further includes a processor to control the switch to, based on the measured current, (A) couple the temperature-dependent resistive element in parallel to the resistive element or (B) couple the temperature-dependent resistive element in series with the resistive element.

Operational profiles of printing device components

In some examples, a controller can generate operational profiles of printing device components by determining an electrical measurement of a component of a printing device, generate an operational profile of the electrical measurement, compare the operational profile against a baseline operational profile the component, and generate an alert based on the comparison.

Printing device dryer setting

According to an example, an apparatus may include a controller and a non-transitory computer readable medium on which is stored instructions. The instructions may cause the controller to predict that a user is to instruct a printing device to perform a printing operation, in which the printing device includes a dryer, identify the user in response to the prediction, to access a user profile corresponding to the identified user, in which the accessed profile identifies a type of document that the identified user typically prints, and to adjust a setting of the dryer according to the identified type of document in the accessed profile.