An electro-wetting-on-dielectric printing system includes a drum and an electrode array disposed on a surface of the drum, which is made up of individually addressable electrodes and an ink-phobic coating overlaying the electrodes. The mobile phone comprises a communication unit, a signal detection unit, and a processor. The capacitor includes first and second electrodes and a capacitor dielectric between the first and second electrodes. This rating determines where the image is deployed. A scanning pattern selector determines which scanning pattern produced the most efficient coding result, for example, for runlength coding, and outputs a coded signal, coded most efficiently, and a selection signal which identifies the scanning pattern found to be most efficient.