Slot-to-slot circulation in a fluid ejection device

摘要

In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.

主权项

1. A fluid ejection device, comprising:
a substrate including first and second fluid slots; a first fluid ejection chamber to a first side of the first fluid slot, the first fluid ejection chamber having a first fluid ejection actuator communicated therewith; a second fluid ejection chamber to a second side of the first fluid slot, the second fluid ejection chamber having a second fluid ejection actuator communicated therewith; a third fluid ejection chamber to a first side of the second fluid slot, the third fluid ejection chamber having a third fluid ejection actuator communicated therewith; and a pump chamber to a second side of the second fluid slot, the pump chamber having a fluid pump actuator communicated therewith to circulate fluid along the substrate.