The invention relates to a printing control device (10) to control printing of a cover layer on a tissue or cell sample to be examined, a system (1) for printing of a cover layer (1) on a tissue or cell sample to be examined, a method to control printing of a cover layer on a tissue or cell sample to be sample to be examined, a computer program element for controlling such device or system for performing such method and a computer readable medium having stored such computer program element. The printing control device (10) comprises an imaging unit (11) and a printing control unit (12). The imaging unit (11) is configured to provide image data of the sample, and to determine a local image parameter from the image data. The local image parameter relates to local tissue porosity and/or a local capillary force of the sample. The printing control unit (12) is configured to control a printing parameter for printing the cover layer on the sample based on the local image parameter.

According to the invention, there is provided a recording method which includes adhering an ink composition to a recording medium, and adhering a reaction liquid to the recording medium, the reaction liquid containing water and a reagent for aggregating or thickening components of the ink composition, and having a pH of 7 to 10. In the adhering of the reaction liquid, an epoxy-based adhesive is used for at least a portion of a reaction liquid passage for supplying the reaction liquid to an ink jet head, and a member in contact with the reaction liquid in the ink jet head, and the reaction liquid is discharged from the ink jet head so as to adhere to the recording medium.

A liquid discharge apparatus includes a first nozzle row group including at least two nozzle rows to discharge a first color liquid, shifted in the sub-scanning direction; a second nozzle row group including at least two nozzle rows to discharge a second color liquid, arranged in the main scanning direction; a main scanning device; a sub-scanning device; and circuitry to cause the first nozzle row group to discharge the first color liquid to positions corresponding to a plurality of pixels to form a first area on the recording medium, in accordance with scanning in the main scanning direction and the sub-scanning direction in a first sequence; and cause the second nozzle row group to discharge the second color liquid to positions corresponding to a plurality of pixels to form a second area on the recording medium, in accordance with scanning in the main scanning direction and the sub-scanning direction in a second sequence.

A liquid discharge apparatus includes a first nozzle row group including at least two nozzle rows to discharge a first color liquid, shifted in the sub-scanning direction; a second nozzle row group including at least two nozzle rows to discharge a second color liquid, arranged in the main scanning direction; a main scanning device; a sub-scanning device; and circuitry to cause the first nozzle row group to discharge the first color liquid to positions corresponding to a plurality of pixels to form a first area on the recording medium, in accordance with scanning in the main scanning direction and the sub-scanning direction in a first sequence; and cause the second nozzle row group to discharge the second color liquid to positions corresponding to a plurality of pixels to form a second area on the recording medium, in accordance with scanning in the main scanning direction and the sub-scanning direction in a second sequence.

A liquid discharge apparatus includes a head array including heads each having nozzles to discharge liquid onto a recording medium, arranged as a nozzle line in a sub-scanning direction; a moving part to move the head array alternately in the scanning direction and in the sub-scanning direction perpendicular to each other while discharging or not discharging the liquid; and a controller including a memory and a processor. The processor adjusts image data for juncture areas of two heads adjacent to each other in the sub-scanning direction; and drives the head array to discharge the liquid from the nozzles while the moving part moves the head array. The adjusting adjusts the image data such that the image data is thinned to make print rates for the juncture areas smaller at ends of the nozzle lines, and the print rates vary among the juncture areas.

In response to determining that a code image is to be formed such that a particular direction is same as a scanning direction, a controller performs divided recording processing of controlling a head and a carriage to: (a) record a plurality of first portions with liquid ejected from the head during a first movement of the head in the scanning direction; and (b) record a plurality of second portions with liquid ejected from the head during a second movement of the head in the scanning direction. The plurality of second portions are located at an at least partially different position from the plurality of first portions with respect to a conveyance direction. The second movement is a movement in a direction opposite the first movement. The second movement is performed after the first movement without performing conveyance processing between the first movement and the second movement.

In response to determining that a code image is to be formed such that a particular direction is same as a scanning direction, a controller performs divided recording processing of controlling a head and a carriage to: (a) record a plurality of first portions with liquid ejected from the head during a first movement of the head in the scanning direction; and (b) record a plurality of second portions with liquid ejected from the head during a second movement of the head in the scanning direction. The plurality of second portions are located at an at least partially different position from the plurality of first portions with respect to a conveyance direction. The second movement is a movement in a direction opposite the first movement. The second movement is performed after the first movement without performing conveyance processing between the first movement and the second movement.

A controller extracts an image resolution in a first direction of image data stored in a memory; determines, based on the image data, whether a code image is included in an image to be printed on a recording medium, the code image being formed with a plurality of print regions and a plurality of non-print regions; in response to determining that the code image is included, determines whether a print resolution in the first direction is lower than the extracted image resolution in the first direction; in response to determining that the print resolution is lower than the extracted image resolution, updates the print resolution in the first direction with a value equal to or higher than the extracted image resolution in the first direction; and controls a print engine to perform printing on the recording medium with the updated print resolution in the first direction.

A fluid dispenser may include fluid dispensing dies in an end-to-end staggered arrangement, a non-fluid dispensing die electronic device and a molding covering the fluid dispensing dies and the electronic device.

The head (8) of an ink discharge device (1) discharges ink into a recording medium being conveyed. A movement unit (12) moves the head (8) in the height direction (Z-axis direction) when the printing surface of the recording medium is set as the front surface. A controller (10) sets a discharge time gap, which is the gap between the nozzle (81) and the printing surface during ink discharge, in accordance with the image to be printed and the recording medium. The controller (10) causes the movement unit (12) to move the head in the Z-axis direction so as to reach the set discharge interval.