Abstract: The present invention is directed to an apparatus and method for providing access to educational and training services to truck drivers in the cabs of their trucks. The apparatus includes an in-vehicle communications system that combines Wi-Fi, cellular, IP radio and satellite communications systems for sending data to and from the cab. The method includes steps of accessing educational course information from an educational institution computer system, selecting a wireless communication system for communicating with the in-vehicle communication system, transmitting the educational course information via the wireless communication system, receiving the educational course information at the in-vehicle communication system, and presenting the educational course information to an occupant of the transport vehicle using a display device associated with the in-vehicle communication system.

Abstract: An ink jet printer having an ink jet head unit including a head and a three way valve mounted on a bracket. The bracket is removabley mounted to the printer and allows the unit to be replaced in the field. The valve of the new unit is positioned to close off flow to the head while opening flow from the ink source outlet to a disposal outlet. Upon connection of the new unit to the system, a quantity of ink is flushed through the valve to remove impurities introduced during the connection process. The valve is then adjusted to connect flow of ink to the head while closing off the disposal outlet and thereby avoid contamination of the new head.