BACKGROUND

Inkjet printers are systems that generate a printed image by propelling printing liquid through nozzles onto substrate locations associated with virtual pixels. The printing composition drops may comprise pigments or dyes disposed in a liquid vehicle. In some examples, the printing composition may be stored in a printing fluid repository. The accuracy of the selection of a dye concentration, and/or a pigment concentration may influence the control of the printing liquid propelling onto the substrate. Additionally, or alternatively, the accuracy in which the printing fluid drops are placed in the substrate locations may lead to a better print job quality or image quality (IQ).

