A recording system records a recording image based on image data by repeating a pass operation in which a nozzle row discharges ink while moving relatively to a recording medium in a main scanning direction and a transport operation in which the nozzle row and the recording medium relatively move in a sub scanning direction intersecting the main scanning direction. The recording system includes a code detecting unit that detects an area where code information included in the image data is located, and a recording controller that controls the pass operation and the transport operation based on the image data and a result of the detection by the code detecting unit. The recording controller controls such that the number of times of the pass operation of recording the area is smaller than that of the pass operation of recording an area adjacent to the area in the main scanning direction.

A liquid discharging device includes a carriage carrying a head configured to discharge a liquid onto a target, the liquid including an ink, the ink consisting water, an organic solvent, a coloring material, and a plurality of polysiloxane compounds, a driving unit configured to move the carriage and the target relatively to each other, a measuring unit configured to measure the distance between the carriage and the target, an image-capturing unit configured to capture a target image, and a setting unit configured to set a liquid discharging performance of the head based on a measurement result obtained by the measuring unit and the target image obtained by the image-capturing unit.

Examples are provided to methods to dynamically control the timing of a printing fluid drop ejection to deposit printing fluid on a print zone of a substrate. The examples may also provide measuring a height profile of a pre-print zone.

A printing apparatus includes: a head portion that discharges droplets toward a printing medium while reciprocating on the printing medium; and a controller that controls movement of the head portion during a printing operation such that a movement stop time of the head portion when a movement direction of the head portion is reversed at an endmost portion of a range in which the head portion moves is longer than the movement stop time of the head portion when the movement direction of the head portion is reversed on the printing medium.

A head driving device includes a recording head, an input-and-output interface, and circuitry. The recording head includes a plurality of nozzles and a plurality of pressure generating elements corresponding to the plurality of nozzles. The input-and-output interface is configured to acquire correction information generated based on a chart image of a specific pattern for correcting a deviation amount of a landing position of each of the plurality of nozzles. The circuitry is configured to set the correction information acquired by the input-and-output interface and perform correction processing for correcting the deviation amount of the landing position on a driver for each of the plurality of nozzles of the recording head, in accordance with the correction information.

When an image recording apparatus records an specific image over a boundary between a first dot formation range where dots are to be formed in a preceding recording operation of two consecutive recording operations and a second dot formation range where dots are to be formed in a subsequent recording operation of the two consecutive recording operations, the apparatus sets, as a correction portion, an end portion in a scanning direction of a specific region including at least one of a first boundary region adjacent to the second dot formation range and a second boundary region adjacent to the first dot formation range in the specific image, and forms the dot placed at the correction portion by discharging liquid of a discharge amount smaller than the discharge amount set for a dot element corresponding to the dot from nozzles.

Examples relating to calibrating printing pens of a print bead assembly in a printer are described. For example, techniques for calibrating a printing pen includes detecting position of a first symbol and a second symbol of a pattern from amongst multiple patterns in an alignment pattern, where each pattern is associated with art ideal deviation and the symbols are printed in a juxtaposed position. The ideal deviation is a predefined value of deviation between the symbols when the printing pen is aligned. Thereafter, determining an actual deviation, due to misalignment in the printing pen, between the symbols. Further the technique includes establishing a relation between the actual deviation and the ideal deviation for the multiple patterns and determining a value of the ideal deviation for a zero value of the actual deviation. The value of the ideal deviation is a corrective value of alignment for the printing pen.

An imaging apparatus includes a print engine having a printhead that generates ink drops, and a printhead carrier that carries the printhead in a first direction and in a second direction opposite the first direction. A controller determines an initial print direction based on ink drop information obtained by printing patches in the first direction and in the second direction, wherein the ink drop information includes a respective chromatic value of each of the patches. The controller is operatively coupled to the print engine to print an image based on the initial print direction.

A printing device includes: a controller configured to perform printing wherein in a first case where a first condition is not satisfied, the controller controls the main-scanning unit to perform the main-scanning at a first speed and controls the print head to discharge the ink to correspond to a specific pixel of a partial image to be printed by the partial printing when the print head is at a first position, and in a second case where the first condition is satisfied, the controller controls the main-scanning unit to perform the main-scanning at a second speed slower than the first speed and controls the print head to discharge the ink to correspond to the specific pixel when the print head is at a second position, which is located at a downstream of the first position in the direction of the main-scanning.

A method is provided that is implemented on a control device connected with an inkjet printer, which includes an inkjet head having an ink discharging surface, a head scanning unit reciprocating the inkjet head relative to a recording sheet along a scanning direction parallel to the ink discharging surface, and a wave shape generating mechanism deforming the recording sheet in a predetermined wave shape that has tops of portions protruding in a first direction toward the ink discharging surface and bottoms of portions recessed in a second direction opposite to the first direction alternately arranged along the scanning direction, the method including acquiring gap information related to a gap between the ink discharging surface and each individual one of the tops and the bottoms on the recording sheet, and determining whether the gap information acquired for each individual one of the tops and the bottoms is abnormal.