Patent ID: 8172379
Filing Date: 2012-05-08
Classification: B41J

Abstract:
1. A liquid ejecting head unit provided with a plurality of liquid ejecting heads which each have a nozzle row in which a plurality of nozzle openings are arranged and a liquid passage port to which an inner flow passage opens and an outer flow passage is connected, the liquid ejecting head unit comprising: first flow passage members which are each provided with a first flow passage supplying a liquid to the liquid passage port of each of the plurality of liquid ejecting heads; second flow passage members which are each provided with a second flow passage supplying the liquid to the first flow passage; and a switching member which is provided between the first and second flow passages and allows the first flow passages to communicate with the second flow passages in a predetermined communication relation, wherein the switching member has a shape corresponding to the communication relation and the communication between the first flow passages and the second flow passages is changed by replacing the switching member by a switching member having a different shape.