Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 15, 2015
0Patent Application Number
142413300
Date Filed
September 28, 2011
0Patent Citations Received
Patent Primary Examiner
Patent abstract
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.
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