A mobile printing robot includes a windbreak to reduce wind-induced deflection of ink droplets emitted from a printhead of the mobile printing robot. The printhead may have a comparatively large throw height to aid in permitting obstacles, such as particles from safely passing under the printhead without damaging the printhead or cause the printhead to become stuck. The windbreak may be implemented using resiliently compliant sections that block the wind but accommodate the passage of particles or other obstacles.

A method for reducing instability of a nozzle meniscus of a droplet deposition apparatus. The method includes the steps of receiving first and second data blocks for respective first and second line pixels, receiving a data set of forbidden pixel periods, determining a first jitter delay value based on the forbidden pixel periods, generating first and second print data based on the first and second data blocks, the first print data defining a first holding period and one or more drive pulses and the second print data defining one or more drive pulses; wherein the first and second print data generate first and second actuating element signals that cause an actuating element to eject at least one droplet from a nozzle, wherein the first jitter delay value adjusts a first pixel period, defined by the drive pulses, to fall outside of the forbidden pixel periods to reduce nozzle meniscus instability.

There is provided a liquid discharge apparatus including: a liquid discharge head; a relative movement mechanism performing relative movement between the liquid discharge head and a medium; a velocity signal output circuit; and a controller performing a constant velocity discharge operation and an acceleration/deceleration discharge operation. In the constant velocity discharge operation, the controller determines a discharge timing based on information about a representative value of relative velocity obtained based on a plurality of pieces of preceding velocity information. Further, in the acceleration/deceleration discharge operation, the controller obtains approximate information in which a change in the relative velocity is approximated based on distribution of the relative velocity, and the controller determines a discharge timing based on the approximate information.

A printer includes a print head and a processor. The print head ejects ink from nozzles to a printing medium while moving in a first direction, and also moves in a second direction intersecting with the first direction by a moving amount that is a dimension in the second direction of each of blocks into which the nozzles are divided in the second direction. Based on a position of the printing medium and the dimension, the processor determines whether to perform printing in a first mode or a second mode. A printing start position in the second direction of the print head is set such that a position in the second direction of one of boundaries between mutually adjacent blocks coincides, in the first mode, with a position of a back end of a printing region, and in the second mode, with a position of a front end of the printing region.

The invention relates to a printing device for printing large countoured three-dimensional objects. The printing device comprises a movable robot arm mounted on a movable support, a printhead supported at a printing end of the robot arm, the print head comprising a plurality of nozzles, an ink reservoir connected to the nozzles of the print head and to a pump device for supplying ink from the reservoir to the nozzles, and a controller for moving the print head along a printing trajectory while changing the orientation of the printhead. The controller is arranged for: in a calibrating step moving the print head along a calibration trajectory and measuring ink pressures in the printing head and generating and storing ink pressure control data for the nozzles for different orientations of the print head, and in a printing step generating for varying orientations of the printhead along the printing trajectory a pressure control signal on the basis of the stored ink pressure control data, which pressure control signal is supplied to the pump device such that a pressure of the ink in the nozzles is set at a predetermined pressure value.

The invention relates to a printing device for printing large countoured three-dimensional objects. The printing device comprises a movable robot arm mounted on a movable support, a printhead supported at a printing end of the robot arm, the print head comprising a plurality of nozzles, an ink reservoir connected to the nozzles of the print head and to a pump device for supplying ink from the reservoir to the nozzles, and a controller for moving the print head along a printing trajectory while changing the orientation of the printhead. The controller is arranged for: in a calibrating step moving the print head along a calibration trajectory and measuring ink pressures in the printing head and generating and storing ink pressure control data for the nozzles for different orientations of the print head, and in a printing step generating for varying orientations of the printhead along the printing trajectory a pressure control signal on the basis of the stored ink pressure control data, which pressure control signal is supplied to the pump device such that a pressure of the ink in the nozzles is set at a predetermined pressure value.

In a method for printing a digital image in swaths with a swath time corresponding to the width of the digital image on the image receiving medium in the main scanning direction, the print controller issues a trigger that a spitting action for at least part of the printing elements of the print head needs to be performed. A swath time of subsequent swaths is gradually increased until the print head reaches a maintenance tray at a side of the print surface. The print head stays at the maintenance tray until air between the print head and the maintenance tray has approximately reached a standstill. Then, at least part of the printing elements of the print head are spitting marking material in the maintenance tray. After the spitting, the swath time of subsequent swaths is gradually decreased until the swath time is corresponding again with the width of the digital image on the image receiving medium in the main scanning direction. A digital inkjet printer is configured to perform the method.

A liquid discharge apparatus includes a head, processing circuitry, and a memory. The head includes a plurality of nozzle rows in each of which a plurality of nozzles are arranged. The processing circuitry detects landing positions of the liquid discharged from the plurality of nozzle rows and corrects the landing positions of the liquid based on a result of detecting the landing positions of the liquid. The memory stores data related to a relation among the landing positions of the liquid. The processing circuitry detects landing positions of the liquid discharged from one representative nozzle row. The processing circuitry corrects landing positions of the liquid discharged from all of the plurality of nozzle rows based on a result of detecting the landing positions of the liquid discharged from the one representative nozzle row and the data related to the relation among the landing positions stored in the memory.

Provided herein are systems and methods for storing digital information by assembling an identifier nucleic acid molecule from at least a first component nucleic acid molecule and a second component nucleic acid molecule. The system may include a first printhead configured to dispense a first droplet of a first solution comprising the first component nucleic acid molecule onto a coordinate on a substrate, and a second printhead configured to dispense a second droplet of a second solution comprising the second component nucleic acid molecule onto the coordinate on the substrate, such that the first and second component nucleic acid molecules are collocated on the substrate. The system may include a finisher that dispenses a reaction mix onto the coordinate on the substrate to physically link the first and second component nucleic acid molecules, provides a condition necessary to physically link the first and second component nucleic acid molecules, or both.

The present disclosure provides a substrate treating apparatus having improved efficiency and productivity. The substrate treating apparatus provided includes a stage extending in a first direction, for moving a substrate in the first direction, and having an air floating system, a gantry arranged on the stage to extend in a second direction crossing the first direction, a head module installed on the gantry and movable in the second direction, and a displacement sensor installed in the head module, for measuring a separation distance between the substrate and stage, wherein at a first position, the head module ejects ink to the substrate and the displacement sensor measures a first separation distance between the substrate and the stage, and at a second position that is different from the first position, the head module ejects ink to the substrate and the displacement sensor measures a second separation distance between the substrate and the stage.