Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2008-06-30
2011-10-11
Mruk, Geoffrey (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S085000
Reexamination Certificate
active
08033657
ABSTRACT:
An image forming apparatus including a liquid discharge head unit which in turn includes (a) a liquid discharge head including multiple liquid chambers connected to multiple nozzles for discharging liquid droplets, and a common liquid chamber including a liquid supply opening and a liquid discharge opening, to supply a liquid to the multiple liquid chambers, (b) a sub tank including a liquid container, connected to the liquid supply opening to store the liquid to be supplied to the liquid discharge head, (c) a tank connected to the liquid discharge opening to store the liquid used for filling the liquid discharge head, and (d) a mechanism to return the liquid in the tank to the sub tank.
REFERENCES:
patent: 4568953 (1986-02-01), Aoki et al.
patent: 5561448 (1996-10-01), Kaneko et al.
patent: 2005/0082628 (2005-04-01), Kawasaki et al.
patent: 2-179757 (1990-07-01), None
patent: 3-213350 (1991-09-01), None
patent: 5-8400 (1993-01-01), None
patent: 3090698 (2000-07-01), None
patent: 2006-68904 (2006-03-01), None
patent: 2006-88493 (2006-04-01), None
patent: 3885226 (2006-12-01), None
U.S. Appl. No. 11/786,725, filed Apr. 11, 2007.
Cooper & Dunham LLP
Mruk Geoffrey
Ricoh & Company, Ltd.
LandOfFree
Image forming apparatus including liquid discharge head unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming apparatus including liquid discharge head unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus including liquid discharge head unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4290025