Ink jet recording apparatus and recovery processing device for said apparatus
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United States of America Patent
Stats
-
Nov 2, 1999
Grant Date -
N/A
app pub date -
Jul 5, 1994
filing date -
Jul 6, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet recording apparatus comprises an ink jet head provided with discharge ports for discharging the ink, pressure producing element for producing a pressure for maintaining or recovering the discharge conditions of the ink through said discharge ports by compulsorily discharging the ink through said discharge ports, communicating element for communicating said pressure producing element to said ink jet head, and a driving source for driving said pressure producing element and said communicating element. Each of said pressure producing element and said communicating element is provided with a drive selection mechanism so that either said pressure producing element or said communicating element is selectively driven depending on the rotational direction of said driving source.
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