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

Abstract: According to an example, an apparatus may include a fluid coverage engine to determine which pixels of an image are to receive print fluid. The apparatus may also include a pixel count engine to compute a count of pixels at which print fluid is to be applied onto a media from the determined pixels of the image that are to receive print fluid, a target temperature engine to determine a target temperature for a dryer based upon the computed count of pixels, and a dryer engine to cause the dryer to become heated to the determined target temperature.

Abstract: An airflow device includes a motor to drive an impeller to cause a first airflow and a second airflow. A housing at least partially encloses the motor and impeller, and the housing defines at least a first path and a second path. Via the first path, the first airflow recirculates and is heated with the first path including a first wall with a nozzle array through which the first airflow passes to contact printed media passing external to the first wall. The second path receives a second airflow of air to travel alongside the motor and exit through a first port to join the first airflow at the impeller.

Abstract: In one example, a system can include a media pathway to transport a media into a stacking region, a clamp pathway to move a clamp along the clamp pathway, and a registration surface. The registration surface may be positioned between an edge of the media pathway and the clamp pathway.

Abstract: 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.

Abstract: In some examples, a gimbaled monoclamp can include a housing including a first opening, a second opening, and a pivot point, a clamp disposed at least partially in the housing and including a first pad and a second pad to extend through the first opening and the second opening, respectively, and a pin extending through an opening in the clamp into the pivot point to couple the clamp to the housing in a gimbaled manner.

Abstract: An example printing device may comprise a first bin to receive print media, where the first bin is a non-finishing bin, a second bin to receive print media, where the second bin is a finishing bin, a finishing device, and a controller to determine a total number of finishing device failures and redirect a print job from the second bin to the first bin in response to a determination that the total number of finishing device failures exceeds a threshold value.

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.

Abstract: In one example, a media puller device can include a snowplow device coupled to a first end of a hinge, a leading end of the media puller device coupled to a second end of the hinge, and a tension device coupled between the snowplow device and the media puller device.

Abstract: An example of a print system including a dryer to dry a sheet of paper. The print system includes a media feeder to feed the sheet of paper into the dryer and a controller to vary a speed of the media feeder. The print system includes a communication interface to receive data associated with an image to print on the sheet of paper and a processor. The processor is coupled to the controller and the communication interface. The processor is to determine a first density index for a first portion of the image and to determine a second density index for a second portion of the image. The processor is to adjust the speed of the media feeder via the controller based on the first density index and the second density index.

Abstract: An example of apparatus to adjust an offset is provided. The apparatus also includes a printing device to generate a plurality of print jobs. The apparatus also includes an output bin to catch the plurality of print jobs. The apparatus includes a motor to move the output bin, wherein the output bin alternates between a first position and a second position between each print job of the plurality of print jobs. The apparatus also includes a controller to control the motor, wherein the controller is to update the position data based on the sensor data to provide uninterrupted operation of the printing device after the sensor detects the obstacle.

Abstract: A media transport system, includes a transport path, a drive gear at one end of the transport path, a driven gear at an opposite end of the transport path, an endless loop transmission element engaged with the drive gear and the driven gear, a media clamp secured to the endless loop transmission element, and a one-way clutch coupled with the driven gear. The endless loop transmission element is to rotate in one direction to move the media clamp and transport media from the one end of the transport path toward the opposite end of the transport path, and the one-way clutch is to allow rotation of the driven gear in the one direction and resist rotation of the driven gear in an opposite direction.

Abstract: A media registration system including a track to transport media in a transport direction from an intake end to a registration end, and a pivot shaft. A translator to register media in a lateral direction to the transport direction includes a translation element operatively coupled to the track and moveable along a translation axis in the lateral direction, and a driver to drive the translation element a translation distance along the translation axis to rotate the track about the pivot shaft to move the registration end a selected registration distance in the lateral direction, the translation distance proportional to the selected registration distance.

Abstract: A media transport system, includes a transport path, a drive gear at one end of the transport path, a driven gear at an opposite end of the transport path, an endless loop transmission element engaged with the drive gear and the driven gear, a media clamp secured to the endless loop transmission element, and a one-way clutch coupled with the driven gear. The endless loop transmission element is to rotate in one direction to move the media clamp and transport media from the one end of the transport path toward the opposite end of the transport path, and the one-way clutch is to allow rotation of the driven gear in the one direction and resist rotation of the driven gear in an opposite direction.

Abstract: In an example, a print system include a component device that is operation in a number of state, a density engine, and a component engine. An example density engine identifies a plane region of a plane where print fluid is to be printed based on data of a print job and determines a density classifier for the plane based on a location of the plane region on the plane. An example component engine causes an adjustment of a component attribute of the component device based on the density classifier.

Abstract: 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.

Abstract: 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.

Abstract: In an example, a print system include a component device that is operation in a number of state, a density engine, and a component engine. An example density engine identifies a plane region of a plane where print fluid is to be printed based on data of a print job and determines a density classifier for the plane based on a location of the plane region on the plane. An example component engine causes an adjustment of a component attribute of the component device based on the density classifier.

Abstract: An example of apparatus to adjust an offset is provided. The apparatus also includes a printing device to generate a plurality of print jobs. The apparatus also includes an output bin to catch the plurality of print jobs. The apparatus includes a motor to move the output bin, wherein the output bin alternates between a first position and a second position between each print job of the plurality of print jobs. The apparatus also includes a controller to control the motor, wherein the controller is to update the position data based on the sensor data to provide uninterrupted operation of the printing device after the sensor detects the obstacle.

Abstract: An example printing device may comprise a first bin to receive print media, where the first bin is a non-finishing bin, a second bin to receive print media, where the second bin is a finishing bin, a finishing device, and a controller to determine a total number of finishing device failures and redirect a print job from the second bin to the first bin in response to a determination that the total number of finishing device failures exceeds a threshold value.