Incremental printing of symbolic information – Ink jet – Controller
Patent
1994-09-14
2000-12-26
Barlow, John
Incremental printing of symbolic information
Ink jet
Controller
347 85, B41J 2195
Patent
active
06164742&
ABSTRACT:
The accumulator system includes minute pump and transducer mechanisms carried on the pen for regulating changes in the back pressure of the pen reservoir. One pump inflates a bag that is carried inside the reservoir. Another pump deflates the bag. The pumps are selectively controlled, in response to pressure changes detected by the transducer mechanism.
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Barlow John
Hallacher Craig A.
Hewlett--Packard Company
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