摘要:
A thermal bend actuator, having a plurality of elements, is provided. The actuator comprises a first active element for connection to drive circuitry a second passive element mechanically cooperating with the first element. When a current is passed through the first element, the first element expands relative to the second element, resulting in bending of the actuator. The first element is comprised of an aluminium alloy.
摘要:
An inkjet printhead includes a ceramic nozzle plate having a plurality of movable portions defined therein and a polymeric material covering the nozzle plate and the plurality of movable portions.
摘要:
A MEMS integrated circuit comprises: a silicon substrate having a passivated CMOS layer, a MEMS layer disposed on the passivated CMOS layer, and a polymer layer disposed on the MEMS layer. The CMOS layer comprises drive circuitry for actuating actuator devices in the MEMS layer and the polymer layer comprises a polymerized siloxane.
摘要:
A wafer assembly comprises a wafer having a MEMS layer formed on a frontside and a polymer coating covering the MEMS layer. A holding means is releasably attached to the polymer coating so that the wafer assembly facilitates performance of backside operations on a backside of the wafer. The polymer coating is comprised of a polymerized siloxane.
摘要:
An inkjet nozzle assembly having: a nozzle chamber for containing ink, the nozzle chamber including a floor and a roof having a nozzle opening defined therein; and a plurality of moveable paddles defining part of the roof. The plurality of paddles are actuable to cause ejection of an ink droplet from the nozzle opening. Each paddle includes a thermal bend actuator, and each actuator is independently controllable via respective drive circuitry such that a direction of droplet ejection from the nozzle opening is controllable by independent movement of each paddle.
摘要:
A method of compensating for a dead nozzle in a stationary pagewidth printhead. The method includes the steps of: (i) identifying the dead nozzle; (ii) selecting a functioning nozzle in a same nozzle row as the dead nozzle; and firing ink droplets from the selected functioning nozzle at a primary dot position associated with the dead nozzle.
摘要:
A method of printing at a dot density exceeding a nozzle density in a stationary pagewidth printhead. The method includes the steps of: (i) advancing a print medium transversely past the stationary printhead at a rate of one line per one line-time; and (ii) firing droplets of ink from predetermined nozzles in a nozzle row to create successive lines of print. Some or all of the predetermined nozzles fire droplets of ink at a plurality of predetermined different dot positions along a longitudinal axis of the printhead during one line-time, such that the printed dot density in each line of print exceeds the nozzle density.
摘要:
A stationary pagewidth inkjet printhead is comprised of a plurality of printhead integrated circuits butted end-on-end across the pagewidth. The printhead includes one or more nozzle rows extending along a longitudinal axis of the printhead, each nozzle row comprising a plurality of nozzles. One or more of the nozzles are configured to fire a droplet of ink at a plurality of predetermined different dot positions along the longitudinal axis.
摘要:
A stationary pagewidth inkjet printhead has one or more nozzle rows extending along a longitudinal axis of the printhead. Each nozzle is configured to fire a droplet of ink at a plurality of predetermined different dot positions along the longitudinal axis, such that a printed dot density exceeds a nozzle density of the printhead.
摘要:
A method of printing at a dot density exceeding a nozzle density in a stationary pagewidth printhead. The method includes the steps of: (i) advancing a print medium transversely past the stationary printhead at a rate of one line per one line-time; and (ii) firing droplets of ink from predetermined nozzles in a nozzle row to create successive lines of print. Some or all of the predetermined nozzles fire droplets of ink at a plurality of predetermined different dot positions along a longitudinal axis of the printhead during one line-time, such that the printed dot density in each line of print exceeds the nozzle density.