CARRIAGE UNIT
SM 6-9 J001/J003
Detailed
Descriptions
6.3.4 INK EJECTION DEVICE
Each print head uses a piezo-electric element (PZT) [A]. This forces ink from the
ink reservoirs out of the ink nozzles and onto the paper.
This is done with pressure. At the prescribed time, an electric charge is given to the
PZT. This makes the PZT expand. The expansion of the PZT [B] puts pressure on
the ink [C] below. This makes the ink move in both directions. The ink on the right
is forced out the ejection port [D].
Base
PZT
Base
PZT
G707D910.WMF
[A] [B]
[C]
[D]
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