Abstract: The invention relates to a fluid ejection system comprising a print head unit including a fluid ejection nozzle array, wherein the fluid ejection nozzle array comprises at least a first set of nozzles having nozzles of a first fluid ejection capacity and a second set of nozzles having nozzles of a second fluid ejection capacity and nozzles of a third fluid ejection capacity, wherein the first fluid ejection capacity, the second fluid ejection capacity and the third fluid ejection capacity are different from one another, and further including a printer controller which, in a first printing mode, selects nozzles of the first and second sets for firing in proportions so that the overall color densities generated by the nozzles of second set when compared to nozzles of the first set are the same in a defined print area.

Abstract: The invention relates to a fluid ejection system comprising a print head unit including a fluid ejection nozzle array, wherein the fluid ejection nozzle array comprises at least a first set of nozzles having nozzles of a first fluid ejection capacity and a second set of nozzles having nozzles of a second fluid ejection capacity and nozzles of a third fluid ejection capacity, wherein the first fluid ejection capacity, the second fluid ejection capacity and the third fluid ejection capacity are different from one another, and further including a printer controller which, in a first printing mode, selects nozzles of the first and second sets for firing in proportions so that the overall color densities generated by the nozzles of second set when compared to nozzles of the first set are the same in a defined print area.

Abstract: A fluid ejection system includes a fluid receiving unit configured to receive fluid. The fluid receiving unit includes a predetermined fluid storage capacity to store the received fluid. The fluid ejection system also includes a fluid ejector unit having a plurality of nozzles to selectively eject fluid toward the fluid receiving unit at a respective frequency and a remaining fluid determination module configured to determine a remaining amount of the received fluid stored in the fluid receiving unit. The remaining amount of the received fluid is based on a respective variable fluid evaporation ratio corresponding to the respective frequency of the ejected fluid and an ejected amount of the fluid ejected toward the fluid receiving unit from the fluid ejector unit.

Abstract: A fluid ejection system includes a fluid receiving unit configured to receive fluid. The fluid receiving unit includes a predetermined fluid storage capacity to store the received fluid. The fluid ejection system also includes a fluid ejector unit having a plurality of nozzles to selectively eject fluid toward the fluid receiving unit at a respective frequency and a remaining fluid determination module configured to determine a remaining amount of the received fluid stored in the fluid receiving unit. The remaining amount of the received fluid is based on a respective variable fluid evaporation ratio corresponding to the respective frequency of the ejected fluid and an ejected amount of the fluid ejected toward the fluid receiving unit from the fluid ejector unit.