Abstract: Methods, systems, and devices related to a printer system that includes a first primary ink tank holding a dark-colored ink, a second primary ink tank holding a light-colored ink, a first selector valve configured to change a state, a first secondary ink tank connected to the first primary ink tank via the first selector valve, a second secondary ink tank connected to the first and second primary ink tanks via the first selector valve, a second selector valve connected to the first primary ink tank configured to return the dark-colored ink from the print heads to the first primary ink tank, and a third selector valve connected to the second selector valve and the second primary ink tank configured to either return the light-colored ink from the print heads to the second primary ink tank or to direct the dark-colored ink to the second selector valve.

Abstract: A main TP is formed by N pattern element groups formed of a plurality of pattern elements disposed in cycles of N in a first direction, and disposed in positions shifted with respect to each other in a second direction intersecting the first direction. A first sub TP is configured by pattern elements printed by the nozzles used to print the pattern elements of the pattern element group positioned furthest away from the one region, in the second direction, among the N pattern element groups, and a second sub TP is configured by pattern elements printed by the nozzles used to print the pattern elements of the pattern element group positioned furthest away from the other region, in the second direction, among the N pattern element groups.

Abstract: A liquid discharge head includes a nozzle from which a liquid is dischargeable in a liquid discharge direction, an individual chamber communicating with the nozzle, a common chamber configured to store the liquid to be supplied to the individual chamber, a pressure generator configured to apply pressure to the liquid in the individual chamber, a holder holding the pressure generator, a first temperature detector adjacent to the common chamber, the first temperature detector configured to detect temperature proximate to the common chamber, and a second temperature detector held by the holder, the second temperature detector configured to detect temperature of the holder.

Abstract: An example of a printing system is disclosed. The example disclosed herein comprises a plurality of nozzles and a controller. The plurality of nozzles is to eject a printing agent on a substrate to print a print job. The controller is to receive the print job comprising an outline and a fill area to be printed. The controller is also to define a first subset of the plurality of nozzles as a first printing mode to print the outline. The controller is further to define a second subset of the plurality of nozzles as a second printing mode to print the fill area, wherein the second subset comprises more nozzles than the first subset. The controller is further to print the print job based on the first printing mode and the second printing mode.

Abstract: A liquid discharge apparatus includes a plurality of liquid dischargers and circuitry. The plurality of liquid dischargers is configured to discharge liquids of a plurality of colors from discharge holes to form an inspection image on a recording medium. The circuitry is configured to detect a failure of the discharge holes, based on the inspection image formed on the recording medium with the liquids of the plurality of colors. The inspection image includes linear images of the plurality of colors extending in a first direction and arrayed in a second direction intersecting the first direction. Linear images of at least two colors, of the linear images of the plurality of colors, are positioned to overlap each other in the first direction.

Abstract: A liquid discharge apparatus includes a nozzle plate with nozzles and actuators and a drive controller. First and second nozzles are directly adjacent to each other in a first direction. First and third nozzles are directly adjacent to each other in a second direction. The drive controller is configured to apply a drive signal to first, second, and third actuators corresponding to the first, second, and third nozzles, respectively, during a drive cycle. A difference between a first timing at which the drive signal is applied to the first actuator and a second timing at which the drive signal is applied to the second actuator and a difference between the first timing and a third timing at which the drive signal is applied to the third actuator is an odd number multiple of a half of an inherent vibration cycle of the liquid discharge apparatus.

Abstract: The present subject matter relates to disposing memory banks and select register. In an example implementation, a plurality of memory banks is arranged to form a group of memory banks. Each memory bank includes a plurality of memory units. At least one select register generates a select signal to access the memory units in the plurality of memory banks. The at least one select register is disposed at an end of the group of memory banks.

Abstract: A printing apparatus includes a rotary shaft configured to rotate while holding a roll body of a printing medium, a first motor configured to rotate the rotary shaft, a roller pair configured to transport the printing medium downstream by rotating in a state of pinching the printing medium, a second motor configured to rotate the roller pair, a first sensor configured to detect a tip end or a feature of the printing medium, a second sensor configured to detect the tip end or feature of the printing medium, and an outer diameter calculating unit configured to calculate an outer diameter of the roll body based on detection by the first sensor and detection by the second sensor, wherein the outer diameter calculating unit calculates an outer diameter of the roll body before the tip end of the printing medium is pinched by the roller pair.

Abstract: A film-printable UV-curable ink composition, a method for forming a bezel pattern using the same, a bezel pattern, and a display substrate comprising the bezel pattern are disclosed herein. In some embodiments, the ink composition includes a black pigment, a dispersant, an alicyclic epoxy compound, an oxetane compound, an acrylic or silicone surfactant, an organic solvent having a boiling point of 200° C. or more, a photosensitizer, a photopolymerization initiator and an adhesion promoter, wherein a weight ratio of the epoxy compound to the oxetane compound is 1:3 to 1:5. The bezel pattern produced by the ink composition is thin and yet has excellent light-shielding properties so as to prevent a panel pattern of a foldable display, such as a mobile device, from being visible and light leakage from occurring.

Abstract: A print component integrated circuitry package includes a number of temperature sensors where each of the plurality of the temperature sensors is disposed in a corresponding temperature region of an integrated circuitry. In an example, an analog sense bus conductively connects to all of the plurality of temperature sensors and an external sensor pad that is to connect to a corresponding print controller contact.

Abstract: A liquid ejection head includes: head units arranged in a first direction; first individual heat dissipators each corresponding to one of the head units and disposed on a first side of the head unit in a second direction; and a first common heat dissipator disposed on the first side of the head units in the second direction. The first common heat dissipator extends in the first direction and shared among the head units. Each head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. Each of the first individual heat dissipators is disposed between the first driver integrated circuit and the first common heat dissipator of the head unit so as to be in thermal contact with the first driver integrated circuit and the first common heat dissipator.

Abstract: A print apparatus includes a print unit configured to perform printing on a print medium, a transport belt on which the print medium is mounted, a driving section configured to move the belt in a predetermined belt movement direction so as to transport the print medium, a detection section configured to detect marks for detection of a movement amount formed on side ends of the transport belt, and a driving controller configured to control the driving section based on a result of the detection performed by the detection section. The driving controller obtains an error of movement amounts of the transport belt based on the result of the detection performed by the detection section and performs control such that the obtained error is corrected.

Abstract: A printing fluid cartridge includes a front face oriented toward a first direction, a printing fluid supply portion positioned at the front face, a rear face positioned opposite the front face and oriented toward a second direction opposite the first direction, at least one electrical interface positioned between the front face and the rear face, and an engagement surface facing in the second direction. The at least one electrical interface is offset from the printing supply portion with respect to a third direction perpendicular to the first direction and the second direction. The at least one electrical interface is positioned closer to the front face than the engagement surface is, and the at least one electrical interface and the engagement surface intersect a plane which is parallel with the first direction, the second direction, and the third direction.

Abstract: An ejection device includes: an ejection unit provided with an ejection port configured to eject an ejection material; a piezoelectric element configured to cause the ejection material to be ejected from the ejection unit; a first liquid chamber connected to the ejection unit and configured to supply the ejection unit with the ejection material; a pressure control unit configured to control a pressure in the ejection unit by controlling a pressure in the first liquid chamber; and a detection unit configured to detect a wetness of an ejection port side surface.

Abstract: An image forming apparatus includes a sheet feeder, an image former, an ultrasonic sensor, and a controller. The image former forms an image on a sheet conveyed. The ultrasonic sensor is used to detect the sheet conveyed. The ultrasonic sensor includes a transmitter circuit which sends ultrasonic waves and a receiver circuit which receives the ultrasonic waves. The ultrasonic sensor outputs an output voltage in accordance with a strength of the ultrasonic waves received by the receiver circuit. The controller recognizes a current air pressure based on a magnitude of the output voltage.

Abstract: A recording device includes a recording unit capable of performing recording on a medium, a transporting belt capable of transporting the medium, and a first contact portion and a second contact portion that contact the transporting belt, and are inclined in mutually different directions with respect to a movement direction of the transporting belt, wherein when a direction orthogonal to the movement direction and along the transporting belt is an orthogonal direction, a range, in which the first contact portion and the second contact portion are provided, in the orthogonal direction is wider than a width dimension of the transporting belt in the orthogonal direction, and an interval between the first contact portion and the second contact portion in the orthogonal direction increases in the movement direction.

Abstract: An aqueous-based inkjet ink for a thermal inkjet printhead includes: a pigment; 2 to 90 ppm ammonium ions; and an ink vehicle. The ink has a pH in the range of 8 to 9.5 and exhibits improved lifetime in thermal inkjet printheads with minimal loss of print quality.

Abstract: In one example, a printer with adaptive sampling includes a print engine, a monochrome scanner, a light source, and an analysis module. The light source has independently controlled primaries oriented to illuminate a media from the print engine. The analysis module includes a page selection module to select a chosen page of media for analysis, a heuristic analysis module to analyze the chosen page and determine a region of the page for analysis, a light control module to select a mono-color for the light source in region on the chosen page, and a quality module to accept an image of the chosen page and a scan of the chosen page with the monochrome scanner illuminated by the selected mono-color and compare the image and the scan within the region to determine a discrepancy.

Abstract: A liquid discharge apparatus includes a liquid discharge head to discharge liquid, a liquid circulation path including the liquid discharge head, an exhaust path connected to the liquid circulation path on a downstream side of the liquid discharge head in a circulation direction of the liquid, and circuitry. The liquid circulation path circulates the liquid via the liquid discharge head. The circuitry opens and closes between the liquid circulation path and the exhaust path to exhaust bubbles in the liquid circulation path to an outside of the liquid circulation path through the exhaust path when the liquid is circulated in the liquid circulation path.

Abstract: A conveyance device includes a support having a support face configured to support a conveyed object and a fluid introduction device disposed outside the support. The fluid introduction device is configured to introduce a fluid between the support face of the support and the conveyed object, to form a fluid layer for floating the conveyed object. The conveyance device further includes a conveyor configured to convey the conveyed object being floating from the support via the fluid layer.