Valves for fluid ejection devices

A fluid delivery system comprising:

• a fluid ejection device comprising nozzles to eject a fluid;
• and
• a valve assembly to control a supply of the fluid to the fluid ejection device selectively from one of a plurality of fluid sources, the valve assembly comprising:
• a plurality of valves each movable between a first valve position to select a first fluid source of the plurality of fluid sources, and a second valve position to select a second fluid source of the plurality of fluid sources;
• a common actuator comprising a motor to, when the motor is energized, control movement of the plurality of valves;
• and
• a plurality of biasing mechanisms, each respective biasing mechanism of the plurality of biasing mechanisms to maintain the respective valve at each of the first valve position and the second valve position without energizing the motor.

A method of forming a fluid delivery system, comprising:

• interconnecting fluid paths between a plurality of valves and a fluid ejection device comprising nozzles to eject a fluid;
• connecting a common actuator to a plurality of cams that are moveable by the common actuator when energized to actuate respective valves of the plurality of valves between a first valve position and a second valve position;
• and
• arranging biasing elements to bias the plurality of valves at the first valve position and at the second valve position without energizing the common actuator.