In some examples, a fluid ejection device comprises fluid nozzles arranged in a plurality of primitives, wherein a first primitive of the plurality of primitives is interdigitated with a second primitive of the plurality of primitives, the first primitive comprising a series of nozzles starting with a first nozzle of the first primitive, and the second primitive comprising a series of nozzles starting with a first nozzle of the second primitive. The fluid ejection device further comprises a plurality of addresses that designate respective nozzles of the series of nozzles of each primitive of the plurality of primitives, wherein a first address of the plurality of addresses designates the first nozzle of the first primitive and the first nozzle of the second primitive.

Selecting nozzles can include selecting nozzles of a plurality of nozzles to print a portion of a print job based on content of the print job and assigning firing reservations to the selected nozzles, where a total number of the firing reservations assigned to the selected nozzles is comparatively less than a total number of the plurality of nozzles.

A method and system for printing graphical content onto a plurality of memory devices and for providing a visually distinguishable memory device are provided. In one embodiment, graphical content to be printed onto a plurality of memory devices is identified. A graphical image is then created from the identified graphical content, wherein the graphical image comprises a plurality of sub-areas, wherein each sub-area contains graphical content and corresponds to at least one memory device of the plurality of memory devices. The graphical image is then printed onto the plurality of memory devices, wherein the plurality of memory devices are positioned to substantially correspond with positions of the plurality of sub-areas in the graphical image. Other embodiments are disclosed.

Selecting nozzles can include selecting nozzles of a plurality of nozzles to print a portion of a print job based on content of the print job and assigning firing reservations to the selected nozzles, where a total number of the firing reservations assigned to the selected nozzles is comparatively less than a total number of the plurality of nozzles.

A first output section outputs a first parameter calculated for each nozzle in a group obtained by dividing the nozzles into groups for each certain number so that density unevenness of ink ejected from each nozzle in the group is corrected. A second output section outputs a second parameter calculated for each group so that change rate of the density unevenness between groups is corrected. A first register circuit divides first parameters for each nozzle in the group and stores the first parameters. A second register circuit divides second parameters for each group and stores the second parameters. A multiplication section sequentially multiplies the first parameters by the second parameters. A conversion section converts a multiplication value to correction data of each nozzle. A setting section sets the correction data in a memory.

Selecting nozzles can include selecting nozzles of a plurality of nozzles to print a portion of a print job based on content of the print job and assigning firing reservations to the selected nozzles, where a total number of the firing reservations assigned to the selected nozzles is comparatively less than a total number of the plurality of nozzles.

A first output section outputs a first parameter calculated for each nozzle in a group obtained by dividing the nozzles into groups for each certain number so that density unevenness of ink ejected from each nozzle in the group is corrected. A second output section outputs a second parameter calculated for each group so that change rate of the density unevenness between groups is corrected. A first register circuit divides first parameters for each nozzle in the group and stores the first parameters. A second register circuit divides second parameters for each group and stores the second parameters. A multiplication section sequentially multiplies the first parameters by the second parameters. A conversion section converts a multiplication value to correction data of each nozzle. A setting section sets the correction data in a memory.

An inkjet recording apparatus includes a shape reading unit that reads a shape of a conveyed recording medium, a line data generating unit that generates line data based on information of the shape of the recording medium read by the shape reading unit, a head unit that ejects ink to the conveyed recording medium, a mask data generating unit that specifies an ejection inhibition part to which ink is not ejected from each of the plurality of line data, and a print image data generating unit that combines the dot image data and the mask data so as to generate print image data.

In some examples, a fluid ejection device comprises fluid nozzles arranged in a plurality of primitives, wherein a first primitive of the plurality of primitives is interdigitated with a second primitive of the plurality of primitives, the first primitive comprising a series of nozzles starting with a first nozzle of the first primitive, and the second primitive comprising a series of nozzles starting with a first nozzle of the second primitive. The fluid ejection device further comprises a plurality of addresses that designate respective nozzles of the series of nozzles of each primitive of the plurality of primitives, wherein a first address of the plurality of addresses designates the first nozzle of the first primitive and the first nozzle of the second primitive.

A first output section outputs a first parameter calculated for each nozzle in a group obtained by dividing the nozzles into groups for each certain number so that density unevenness of ink ejected from each nozzle in the group is corrected. A second output section outputs a second parameter calculated for each group so that change rate of the density unevenness between groups is corrected. A first register circuit divides first parameters for each nozzle in the group and stores the first parameters. A second register circuit divides second parameters for each group and stores the second parameters. A multiplication section sequentially multiplies the first parameters by the second parameters. A conversion section converts a multiplication value to correction data of each nozzle. A setting section sets the correction data in a memory.