Disclosed is an industrial single-pass inkjet printer/press incorporating a line-scan camera. The line-scan camera enables system software to inspect every sheet for quality assurance purposes. These inspection results are tied back to a digital printer to take one or more of several possible actions. Actions include ensuring a particular number of acceptable prints are generated and sorted. Actions further include performing nozzle checks without pausing or interrupting production orders.

Print data is organized over rows and columns. The columns of each row are selectively assigned to calibration tables respectively corresponding to printheads of a pagewide array in accordance with a substrate advancement skew relative to the pagewide array. The calibration tables are applied to the columns of each row respectively assigned to the calibration tables. The columns of each row to which the calibration tables have been applied are printed using the printheads respectively corresponding to the calibration tables.

A printing apparatus includes a body, a print head, a mover, a stand and a sensor. The body has an opening that faces a printing target during printing. The print head is provided in the body and performs the printing on the printing target. The mover is provided in the body and moves the print head to a first position and a second position. The first position corresponds to the opening, and the second position is different from the first position. The stand is detachable from the body. The sensor at least senses that a distance between the body and the stand is equal to or shorter than a predetermined distance. The mover moves the print head from the second position to the first position in response to the sensor sensing that the distance between the body and the stand is equal to or shorter than the predetermined distance.

An electrohydrodynamic print head has a plurality of nozzles arranged in a plurality of wells. Extraction electrodes are located around the wells at a level below the nozzles. Further, shielding electrodes are located around the wells at a level below the extraction electrodes. For each well, there are several such shielding electrodes located at different angular positions. This allows to use the shielding electrodes for laterally deflecting the ink after its ejection from the nozzles.

A printing apparatus comprising a printing head including a plurality of nozzles, a correction value setting unit configured to set a correction value, a printing data generation unit configured to correct image data and a printing control unit configured to cause to print a first region and a second region on, based on the image data after correction, wherein the printing control unit causes to print one of the first raster lines with a predetermined number of the nozzles and to print one second raster line with a number, greater than the predetermined number, of the nozzles, and the correction value setting unit sets the correction value applied to the second raster line and the correction value applied to some of the first raster lines, in accordance with a printing condition that changes a concentration difference of the second raster line from the first raster lines.

In some examples, a controller to receives, from a strain sensor in a fluidic die component, measured strain data, and detects a change in direction of the fluidic die component based on the measured strain data.

A printing system is provided comprising a print head including a plurality of ink nozzles; an actuator configured to move the print head relative to a substrate; a print head position sensing system configured to detect an actual position of the print head relative to the substrate; and a controller. The controller is configured to: receive the actual position of the print head detected by the print head position sensing system corresponding to a target print head position; determine a positional offset between the actual position and the target print head position; generate a nozzle firing pattern based on the positional offset; and control the print head to print the nozzle firing pattern at the target print head position using the plurality of ink nozzles.

A printing device including: an ejector that ejects a first droplet to a print medium partially having a curved surface while moving in a first direction, and ejects a second droplet corresponding to the first droplet to the print medium while moving in a second direction opposite to the first direction; and a processor that obtains correction level information based on a distance between the print medium and the ejector and reference data that associates a correction level with each area obtained by dividing the print medium into multiple areas in a width direction and that performs ejection control of at least one of ejection of the first droplet and ejection of the second droplet based on the obtained correction level information so that a landing position on the print medium of the first droplet and a landing position of the second droplet substantially match each other.

A droplet ejecting apparatus includes a workpiece table configured to place a workpiece thereon, a droplet ejecting head configured to eject droplets onto the workpiece placed on the workpiece table, a Y-axis linear motor configured to move the workpiece table in a main scanning direction (Y-axis direction), a position detector configured to detect a position of a carriage mark, and a control unit configured to calculate the positional deviation amount in the main scanning direction between a detection position detected by the position detector and a reference position of the carriage mark and correct a droplet ejecting timing of the droplet ejecting head based on the positional deviation amount.

A printing apparatus configured to perform printing while varying an amount of adjustment of a target of adjustment, executing: printing a first adjustment pattern on a printing medium; reading the printed first adjustment pattern to acquire a first adjustment amount; printing a part of a second adjustment pattern on the printing medium, the printed part of the second adjustment pattern corresponding to only a part of the amount of adjustment according to the first adjustment pattern; reading the printed part of the second adjustment pattern to acquire a second adjustment amount; setting a first parameter that is a result of adjusting the target of adjustment by using the first adjustment amount; and setting a second parameter that is a result of adjusting the target of adjustment by using the second adjustment amount.