Pump control mechanism, printer using the same and pump...

Printing – Inkers – Fountains

Reexamination Certificate

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Details

C347S085000, C347S019000, C417S022000

Reexamination Certificate

active

07600472

ABSTRACT:
A pump control mechanism includes a pump unit for feeding liquid to container, a position detector for detecting the position in the reciprocating motion of the pump member, a control table having control information of many time zone sections, an information memory for storing target information corresponding to a target driving speed, a driving information calculator for calculating driving information of a motor on the basis of the reciprocating position detection, a correcting information calculator for calculating correction information for reducing the difference between the driving information and the target information, and a corrector for correcting the control table. The control table has individual control information for each of time zone sections for increasing/reducing the driving force in accordance with the magnitude of the load of the motor, and a control information increasing section for locally increasing the driving force in connection with a case where a large load locally acts on the motor exists in the control table.

REFERENCES:
patent: 5917526 (1999-06-01), Wilson et al.
patent: 6797181 (2004-09-01), Morse et al.
patent: 7131720 (2006-11-01), Mizuno et al.
patent: 7240999 (2007-07-01), Kumagai et al.
patent: 7287842 (2007-10-01), Aruga
patent: 2005/0046681 (2005-03-01), Kumagai et al.
patent: 2006/0071965 (2006-04-01), Igarashi et al.
patent: 2008/0180476 (2008-07-01), Igarashi
patent: 2002-510252 (2002-04-01), None
patent: WO 98/47713 (1998-10-01), None

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