Abstract: According to an example, a printing apparatus may include two drop ejecting elements, a fluid circulating element, and a logic device. The logic device may determine whether one or both of a first drop ejecting element and a second drop ejecting element have been fired within a predetermined period of time prior to a current time. In response to the determination, the logic device may selectively transmit an output signal that is to cause the fluid circulating element to be selectively fired, in which the fluid circulating element is positioned to circulate fluid adjacent to both the first drop ejecting element and the second drop ejecting element.

Abstract: According to an example, a printing apparatus may include two drop ejecting elements, a fluid circulating element, and a logic device. The logic device may determine whether one or both of a first drop ejecting element and a second drop ejecting element have been fired within a predetermined period of time prior to a current time. In response to the determination, the logic device may selectively transmit an output signal that is to cause the fluid circulating element to be selectively fired, in which the fluid circulating element is positioned to circulate fluid adjacent to both the first drop ejecting element and the second drop ejecting element.

Abstract: According to an example, a printing apparatus may include two drop ejecting elements, a fluid circulating element, and a logic device. The logic device may determine whether one or both of a first drop ejecting element and a second drop ejecting element have been fired within a predetermined period of time prior to a current time. In response to the determination, the logic device may selectively transmit an output signal that is to cause the fluid circulating element to be selectively fired, in which the fluid circulating element is positioned to circulate fluid adjacent to both the first drop ejecting element and the second drop ejecting element.

Abstract: According to an example, a printing apparatus may include two drop ejecting elements, a fluid circulating element, and a logic device. The logic device may determine whether one or both of a first drop ejecting element and a second drop ejecting element have been fired within a predetermined period of time prior to a current time. In response to the determination, the logic device may selectively transmit an output signal that is to cause the fluid circulating element to be selectively fired, in which the fluid circulating element is positioned to circulate fluid adjacent to both the first drop ejecting element and the second drop ejecting element.

Abstract: In some examples, a controller of a printbar or a printhead copies firing instructions assigned, over a first network, to a plurality of shift registers, to a plurality of parallel registers and providing, over a second network, a primitive sequence including a respective firing order of each of a plurality of primitives included in the primitive sequence to the parallel registers.

Abstract: Assigning firing reservations to primitives can include assigning a plurality of firing reservations to each of the plurality of primitives and reassigning a firing reservation of the plurality of firing reservations from a primitive of the plurality of primitives to another primitive of the plurality of primitives.

Abstract: In some examples, a controller of a printbar or a printhead copies firing instructions assigned, over a first network, to a plurality of shift registers, to a plurality of parallel registers and providing, over a second network, a primitive sequence including a respective firing order of each of a plurality of primitives included in the primitive sequence to the parallel registers.

Abstract: Staged sequencing of printers can include copy firing instructions, assigned to a plurality of shift registers of a printer via a first network, to a plurality of parallel registers and providing, via a second network, a primitive sequence including a respective firing order of each of a plurality of primitives included in the primitive sequence to the parallel registers.

Abstract: Staged sequencing of printers can include copy firing instructions, assigned to a plurality of shift registers of a printer via a first network, to a plurality of parallel registers and providing, via a second network, a primitive sequence including a respective firing order of each of a plurality of primitives included in the primitive sequence to the parallel registers.

Abstract: Assigning firing reservations to primitives can include assigning a plurality of firing reservations to each of the plurality of primitives and reassigning a firing reservation of the plurality of firing reservations from a primitive of the plurality of primitives to another primitive of the plurality of primitives.

Abstract: A system includes a first memory to store pixel data, a first processing stage to process the pixel data in a nozzle axis major order to provide pre-aligned nozzle data, a second memory to store the pre-aligned nozzle data, a second processing stage to process the pre-aligned nozzle data in a print sweep axis major order to provide post-aligned nozzle data, a third memory to store the post-aligned nozzle data, and a third processing stage to process the post-aligned nozzle data in the nozzle axis major order to provide processed nozzle data.

Abstract: An improved draft mode for use in a swath-type printer, which enables printing in every printing column, with only half the printing elements being activated in each column.

Abstract: An improved draft mode for use in a swath-type printer, which enables printing in every printing column, with only half the printing elements being activated in each column.