Mask entries for each of a plurality of passes over which print fluid drops are to be dispensed for printing an image are generated based on different types of masks and based on image data for the image. Print fluid drop dispensation for a pixel for which the mask entries for a given pass specify repeated print fluid drop dispensation is moved to a mask entry for an adjacent pass that does not specify print fluid drop dispensation for the pixel. Ejection of print fluid to print the image is caused based on the generated mask entries.

A printed matter creating device includes a controller configured to: acquire print data; form a first print on a printing medium while conveying the printing medium, the first print being based on first ON dots in the acquired print data; interrupt the conveyance of the printing medium after forming the first print; cut the printing medium after interrupting the conveyance; and form a second print on the printing medium while conveying the printing medium after cutting the printing medium, the second print being based on second ON dots in the acquired print data. The print data includes a specific print data corresponding to a connecting part connecting the first print and the second print. Based on the acquired print data, the controller adjusts at least one of: aspects of the first ON dots in the specific print data; and aspects of the second ON dots in the specific print data.

A method of printing a pattern from at least two rows of fluid ejection nozzles, said nozzles ejecting a first fluid in a multi-pass printing mode, the method comprising: dividing the pattern to be printed between the rows of fluid ejection nozzles; applying masks to the rows of fluid ejection nozzles for printing with selected nozzles of each of the rows of fluid ejection nozzles during each pass; wherein a first mask for printing from a first row of fluid ejection nozzles during an n-th pass is different from a second mask for printing from a second row of fluid ejection nozzles during said n-th pass.

In an image forming apparatus (an ink jet printer 100), in a sub scanning direction, when an area in arrange of a nozzle at an end portion of a head (41) to a nozzle at a predetermined distance is set as a predetermined area, and a medium is transported in a certain amount by using the head (41), a scan portion, and a transport portion so as to form an image on medium sheet (10), the number of times of scanning for forming a dot array which is formed by using the nozzles included in the predetermined area is more than the number of times of the scanning for forming a dot array which does not use the nozzle in the predetermined area, and the number of times of the scanning for forming the dot array by using the nozzles included in the predetermined area is at least three times.

A printed matter creating device includes a controller configured to: acquire print data; form a first print on a printing medium while conveying the printing medium, the first print being based on first ON dots in the acquired print data; interrupt the conveyance of the printing medium after forming the first print; cut the printing medium after interrupting the conveyance; and form a second print on the printing medium while conveying the printing medium after cutting the printing medium, the second print being based on second ON dots in the acquired print data. The print data includes a specific print data corresponding to a connecting part connecting the first print and the second print. Based on the acquired print data, the controller adjusts at least one of: aspects of the first ON dots in the specific print data; and aspects of the second ON dots in the specific print data.

According to an example, a three-dimensional (3D) printer may include a first delivery device to selectively deposit first liquid droplets onto a layer of build materials and a second delivery device to selectively deposit second liquid droplets onto the layer of build materials, in which the second delivery device is positioned in relatively close proximity to the first delivery device. The 3D printer may also include a controller to identify a density at which the second liquid droplets are to be selectively deposited to control splashing of the build materials upon which the second liquid droplets are deposited and to control the second delivery device to selectively deposit the second liquid droplets at the identified density.

A method for printing with an inkjet head includes: printing with an inkjet head comprising a plurality n of parallel nozzle rows, where n is at least 2; where each nozzle row comprises a plurality of nozzles, where adjacent nozzle rows of the plurality of nozzle rows are shifted with respect to each other; where a distance between two nozzle rows, seen in the printing direction, is d; and where said printing includes: moving the substrate with respect to the inkjet head in the printing direction at a printing speed v′; and firing each nozzle of the plurality of nozzles with a firing frequency f′; where the plurality of nozzle rows are fired at different instants in time, such that the distance d′ between printed rows of dots printed by the two nozzle rows, seen in the printing direction, is larger or smaller than d.

A method for printing with an inkjet head includes: printing with an inkjet head comprising a plurality n of parallel nozzle rows, where n is at least 2; where each nozzle row comprises a plurality of nozzles, where adjacent nozzle rows of the plurality of nozzle rows are shifted with respect to each other; where a distance between two nozzle rows, seen in the printing direction, is d; and where said printing includes: moving the substrate with respect to the inkjet head in the printing direction at a printing speed v′; and firing each nozzle of the plurality of nozzles with a firing frequency f′; where the plurality of nozzle rows are fired at different instants in time, such that the distance d′ between printed rows of dots printed by the two nozzle rows, seen in the printing direction, is larger or smaller than d.

A printing apparatus includes a conveyance unit, a printing unit, and a heating unit that heats a print medium. The conveyance unit conveys the print medium such that the printing unit can print an image onto a second print region at a printing position when the heating unit can heat a first print region at a heating position. If the ink amount applied to the first print region is a first amount, an image is printed onto the second print region in a first mode. If the applied ink amount is a second amount larger than the first amount, an image is printed onto the second print region in a second mode. A time for which the first print region passes through the heating position in the second mode is longer than a time for which the first print region passes through the heating position in the first mode.

A method for alternately operating an inkjet printing machine applying a plurality of inks to a printing material in accordance with a print image, includes conveying the printing material at a conveying speed. A switch is made between the following two modes, a 1.sup.st mode of printing an n-color first print job at a first conveying speed and at a print resolution using n inks, i.e. using black ink and n1 different chromatic inks; and a 2.sup.nd mode of printing a reduced-color second print job at a second conveying speed greater than the first conveying speed and at the same print resolution using the n inks. The printing speed and thus the number of prints produced per unit of time in a machine can therefore advantageously be increased.