Printhead priming system with feedback control of priming pump

Details Printhead priming system with feedback control of priming pump Printhead priming system with feedback control of priming pump

2011-04-26

2011-04-26

Le, Uyen-Chau N (Department: 2874)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000, C347S089000

Reexamination Certificate

active

07931360

ABSTRACT:
A priming system for priming an inkjet printhead having an ink inlet, an ink outlet and a plurality of nozzles, the priming system comprising:an ink chamber having an outlet port connected to the ink inlet via an upstream ink line;an air pump having a pump outlet communicating with a headspace above the ink in the ink chamber;a sensor positioned for sensing ink in a downstream ink line connected to the ink outlet, the sensor cooperating with the pump such that the pump is shut off when the sensor senses any ink; andmeans for minimizing phantom sensing of ink caused by ink bubbles in the downstream ink line,wherein, in a priming configuration, the pump is configured to positively pressurize the headspace until the sensor senses ink.

REFERENCES:
patent: 3929071 (1975-12-01), Cialone et al.
patent: 5847736 (1998-12-01), Kanbayashi et al.
patent: 6174052 (2001-01-01), Eremity et al.
patent: 6428156 (2002-08-01), Waller et al.
patent: 2006/0209115 (2006-09-01), Espasa et al.
patent: 2007/0195136 (2007-08-01), Senor et al.
patent: 2007/0206072 (2007-09-01), Morgan et al.
patent: 2007/0222828 (2007-09-01), Stathem et al.
patent: 0002591 (1982-01-01), None
patent: 1038680 (2000-09-01), None
patent: 2265860 (1993-10-01), None
patent: WO 2008/006132 (2008-01-01), None

Affiliated with

Also associated with

Rating

Printhead priming system with feedback control of priming pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printhead priming system with feedback control of priming pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printhead priming system with feedback control of priming pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2728809