Title:
【発明の名称】インクタンク、インクジェットカートリッジ、及びインクジェット記録装置
Document Type and Number:
Japanese Patent JP2962044
Kind Code:
B2
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.
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Inventors:
ODA KAZUYUKI
FUJIMURA YOSHIHIKO
ISOZAKI JUN
FUJIMURA YOSHIHIKO
ISOZAKI JUN
Application Number:
JP13824592A
Publication Date:
October 12, 1999
Filing Date:
May 29, 1992
Export Citation:
Assignee:
FUJI ZEROTSUKUSU KK
International Classes:
B41J2/01; B41J2/175; (IPC1-7): B41J2/175; B41J2/01
Domestic Patent References:
| JP2198861A | ||||
| JP2198867A | ||||
| JP60204369A | ||||
| JP5318758A |
Attorney, Agent or Firm:
Takahide Tanaka (1 outside)