Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1993-05-28
1996-09-03
Barlow, Jr., John E.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
055528163
ABSTRACT:
Ink-jet recording apparatus to reduce the change of the pressure of ink in the inside of ink discharge nozzles in an ink-jet recording apparatus as well as to improve the efficiency of use of ink. In the condition where an ink tank is used in an ink-jet recording apparatus, an ink joint provided in the lower end portion of the ink tank communicates with ink discharge nozzles of a head tip. Upon reception of air pressure from above, ink kept by a porous ink keeper stored in the inside of the ink tank is permitted to be supplied to the head tip. The ink tank is formed so that the internal volume of the ink tank increases in order from the lower portion to the upper portion. Accordingly, when the initial residual quantity of ink is relatively large, the change of the pressure (negative pressure) of ink in the inside of the head tip as caused by consumption of ink can be reduced. Further, when the residual quantity of ink is small, ink is collected into a small sectional area region in the lower portion of the ink tank. Accordingly, the finally residual quantity of ink can be reduced.
REFERENCES:
patent: 4183031 (1980-01-01), Kyser et al.
patent: 4628334 (1986-12-01), Dagna et al.
patent: 4630758 (1986-12-01), Mutoh
patent: 4719475 (1988-01-01), Kiyohara et al.
patent: 4929969 (1990-05-01), Morris
patent: 4931811 (1990-06-01), Cowger et al.
patent: 5047790 (1991-09-01), Cowger et al.
patent: 5119115 (1992-06-01), Buat et al.
patent: 5359357 (1994-10-01), Takagi et al.
"An Optimization Study of a Drop-on-Demand Ink Jet Print Head Cartridge", Michael F. Baumer, et al., IS & T's Seventh International Congress on Advances in Non-Impact Printing Technologies, Vol. 2, pp. 96-106.
Fujimura Yoshihiko
Isozaki Jun
Oda Kazuyuki
Barlow Jr. John E.
Fuji 'Xerox Co., Ltd.
LandOfFree
Ink tank, ink-jet cartridge and ink-jet recording apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ink tank, ink-jet cartridge and ink-jet recording apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink tank, ink-jet cartridge and ink-jet recording apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1953929