Patent ID: 6984080
Filing Date: 2006-01-10
Classification: B41J

Abstract:
1. A laminated ink distribution structure for a printhead, comprising: a laminated stack having a first layer in which is formed a number of first holes, each first hole being in registry with a supply of ink or air; the stack having a number of subsequent layers, each subsequent layer having formed in it, vertical passages and transverse channels for bringing ink, via the holes of the first layer, to one of a number of printhead chips located as an array that is carried by an array of slots in a lower chip restraining layer; a longitudinal air duct, carried by the distribution molding, within which is located an air valve formed as a channel with a series of apertures in its base; and the apertures corresponding to air passages formed in the air duct so that the apertures can be brought into and out of alignment with the passages to selectively allow pressurized air through and into the stack.