A printing apparatus includes a printing head configured to eject photocurable ink onto a medium, an irradiation portion configured to perform light irradiation of the medium, a mounting portion mounted with the irradiation portion and the printing head in the order from the irradiation portion to the printing head along a first direction, and a driving portion configured to move the mounting portion between a standby position where the printing head stands by and a stop position in the first direction with respect to the standby position. The stop position is a position where the irradiation portion faces the medium.

An example of a printing carriage system is disclosed. The example disclosed herein comprises a plurality of printheads, and a positioning mechanism. The plurality of printheads comprises a moveable printhead that is moveable with respect to other printheads from the plurality of printheads. The positioning mechanism is to move the moveable printhead from a first printhead position to a second printhead position.

A digital printer and a method of controlling the digital printer having a print head with an array of printing elements and a failure detection system arranged to detect malfunctioning printing elements. When, during printing, a malfunctioning printing element is detected, a switch from the current print strategy to another print strategy is arranged during printing which leaves the number of passes per swatch constant, i.e. the print quality is not affected by the switch.

A printing apparatus includes a head to discharge liquid, a carriage to support the head and reciprocate in a forward direction and a backward direction, and a controller. The controller executes a printing process to print one image in a plurality of copies by discharging the liquid from the head while moving the carriage in the forward direction and the backward direction, based on a print job for printing the one image in the plurality of copies, and a first determining process to determine a moving direction of the carriage for second and following copies, based on a moving result of the carriage in printing for the first copy in the printing process.

A printing control apparatus includes a control unit configured to perform control so that a distribution ratio based on which color separation data separated as having a predetermined color is distributed into data for a first nozzle array and a distribution ratio based on which color separation data is distributed into data for a second nozzle array are different depending on a tone value in the color separation data, and a generation unit configured to generate printing data to be used for printing by the first nozzle array based on the distributed data for the first nozzle array and generate printing data to be used for printing by the second nozzle array based on the distributed data for the second nozzle array.

In a printing apparatus configured to print an image by bidirectional multipass printing while using multiple print element rows that apply color material of the same color, a high-quality image suppressed in hue unevenness and density unevenness is printed. To this end, the printing apparatus forms first and second dot patterns on a print medium in an overlapping manner. In the first dot pattern, dot arrays in which first dot groups are arranged at an interval B1 are arranged in a nozzle arrangement direction while being shifted from each other by C1 in a scanning direction of a print head. In the second dot pattern, dot arrays in which the first dot groups are arranged at the interval B1 are arranged in a nozzle arrangement direction while being shifted from each other by C2 in the scanning direction of the print head. Here, values of C1 and C2 are different.

A liquid discharge method for a liquid discharge apparatus having a plurality of print modes includes determining and changing. The determining determines the print modes by a determiner. The changing changes, based on the print mode determined by the determiner, a use nozzle width and a discharge amount of a spot color head in a line feed direction such that a print mode having a low print speed has a narrower nozzle width and a larger discharge amount than a print mode having a high print speed by a controller.

A control unit configured to perform multi-pass printing provided that a region of a printing medium including a first region, a region downstream of the first region is a second region, and a region downstream of the second region is a third region, in a first period in which the first region is a target of printing, causes a velocity of paper feed to be slower than in a third period in which the third region is a target of printing; in the first period, causes a standby time of the printing head to be longer than in the third period; and in a second period in which the second region is a target of printing, changes the standby time so that the standby time approaches the standby time in the first period from the standby time in the third period as the first region approaches the printing head.

A liquid discharging apparatus, having a head with nozzles, a scanning assembly, a conveyer, and a controller, is provided. The controller is configured to conduct actions including a conveying action and a scanning action. The scanning action includes a forward scanning action and a backward scanning action, in each of which a deceleration distance is longer than an acceleration distance. The controller is configured to determine, prior to conducting the forward scanning action, whether a deceleration range corresponding to the deceleration distance in the forward scanning action coincides with a discharging range in the forward scanning action. In a case where the controller determines that the deceleration range coincides with the discharging range, the controller is configured to conduct the backward scanning action, without conducting the forward scanning action, based on partial image data being a part of the image data corresponding to the forward scanning action.

There is provided a printer including: a carriage; a head; a position sensitive detector having a light-emitter and a light-receiver; and a controller. The head has: a first nozzle from which a printing ink is discharged, and a second nozzle from which a liquid scattering a light emitted from the light-emitter is discharged. The controller is configured to execute: formation of a scattering film on the object by discharging the liquid from the second nozzle onto the object; measurement of a distance between the head and the object, with the light emitted from the light-emitter and irradiated onto the scattering film; and adjustment, based on the measured distance, of a discharging condition of discharging the ink from the first nozzle, and performing printing on the object.