Abstract: Example implementations provide a controller for controlling printing of a printer, the controller comprising: an input interface for accessing an image to be printed; an image processor to identify at least one selected feature within the image; and circuitry: a. to control printing of said at least one selected feature using a respective print operation; and b. to control printing of said image, other said at least one selected feature, using a further respective print operation; c. said respective print operation being different to said further respective print operation.

Abstract: Example implementations provide a controller for controlling printing of a printer, the controller comprising: an input interface for accessing an image to be printed; an image processor to identify at least one selected feature within the image; and circuitry: a. to control printing of said at least one selected feature using a respective print operation; and b. to control printing of said image, other said at least one selected feature, using a further respective print operation; c. said respective print operation being different to said further respective print operation.

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.