Printer valve assemblies

A printer, the printer comprising:

• a print head, a pump, a source of first print fluid, a waste receiver, a purge fluid feed, an actuator and a printer valve assembly, the print head being coupled to the printer valve assembly by a feed line and a return line, the printer valve assembly comprising a plurality of valves, wherein each of the plurality of valves can be actuated between an open state which permits fluid flow though the valve and a closed state which prevents fluid flow though the valve, the plurality of valves comprising a first feed valve to control fluid flow between the source of first print fluid and the feed line, a first return valve to control fluid flow between the return line and the source of first print fluid, a waste valve to control fluid flow between the return line and the waste receiver and a purge valve to control fluid flow between the purge fluid source and the feed line, wherein a valve control member is mechanically connected to each of the plurality of valves to simultaneously control the state of the plurality of valves based on a position of the valve control member, the printer further comprising a controller to control the actuator to determine the position of the valve control member to selectively fluidly couple the print head to the source of first print fluid via the feed and return lines, or to fluidly couple the waste receiver to the purge fluid feed via the feed and return lines, wherein the printer further comprises a source of second print fluid and a source of third print fluid and the plurality of valves further comprises a second feed valve to control fluid flow between the source of second print fluid and the feed line, a second return valve to control fluid flow between the return line and the source of second print fluid, a third feed valve to control fluid flow between the source of third print fluid and the feed line, a third return valve to control fluid flow between the return line and the source of third print fluid.

A non-transitory computer-readable storage medium comprising computer executable instructions which, when executed by a processor, cause a printer to perform a method, the method comprising:

• actuating a plurality of valves using an actuator, wherein each of the plurality of valves is actuated between an open state which permits fluid flow though the valve and a closed state which prevents fluid flow though the valve, the plurality of valves comprising a first feed valve, a first return valve, a waste valve and a purge valve;
• controlling the first feed valve to control flow between a first print fluid chamber and a feed line to a print head;
• controlling the first return valve to control flow between a return line from a print head and a first print fluid chamber;
• controlling the waste valve to control flow between a return line from a print head to a waste receiver;
• controlling the purge valve to control flow between a source of purge fluid and a feed line, wherein a printer valve assembly comprises a valve control member mechanically connected to each of the plurality of valves to simultaneously control the state of the plurality of valves based on a position of the valve control member, wherein the plurality of valves further comprises a second feed valve, a second return valve, a third feed valve and a third return valve;
• controlling the second feed valve to control flow between a second print fluid chamber and a feed line to a print head;
• controlling the second return valve to control flow between a return line from a print head and a second print fluid chamber;
• controlling the third feed valve to control flow between a third print fluid chamber and a feed line to a print head;
• and
• controlling the third return valve to control flow between a return line from a print head and a third print fluid chamber.