A method for determining ink drop velocity of a printhead located at a gap above a print medium. The dispersion compositions include protein, water, acid, and optionally an ester of a carboxylic acid. The data transportation of each user can be parsed for identifying a connection that is involved in downloading a content object from a content server. The first sensing unit senses an orientation of the portable electronic device. The local technician identifies an issue with the device and sends the issue to a centralized service. A method for transmitting video communication data and a video communication device are also provided.