Ink cartridge having bellows valve, ink filling method and apparatus used thereof
First Claim
1. An ink cartridge for an ink jet recording apparatus, comprising:
- a cartridge body for accommodating ink with at least one ink chamber, wherein said cartridge body comprising;
at least an air vent for providing fluid communication between said ink chamber and outside air;
at least an ink outlet port for supplying the ink from said ink chamber;
at least a sealing member provided within said ink outlet port for sealing said ink outlet port;
at least a one-way valve disposed within said ink chamber for controlling ink flow, wherein said at least one-way valve is integrally provided with;
a foot support portion sealing an interior wall of said ink outlet port;
a wall support portion projecting from the interior of said foot support portion;
a shoulder support portion bending toward interior of said wall support portion;
a head support portion projecting from said shoulder support portion with a through hole; and
at least a valve sealing assembly being maintained selectively in contact with said head support portion through hole by a pressure difference.
1 Assignment
0 Petitions
Accused Products
Abstract
An ink cartridge, ink filling method and apparatus are disclosed. A one valve is disposed in the ink chamber of an ink cartridge and includes a foot support portion, a wall support portion projecting at an angle from the interior side of foot support portion, a shoulder support portion bending towards the interior side of wall support portion, and a head support portion projecting from shoulder support portion with a through hole. A valve sealing assembly being maintained selectively in contact with the head support portion through hole by a pressure difference. A sealing assembly integrally formed with a block portion is disposed at ink outlet port. The cartridge is very sensitive to pressure changes, which enhances printing quality. At the same time, the sealing assembly of the cartridge has an enhanced sealing function in non-usage status and usage status as well.
80 Citations
40 Claims
-
1. An ink cartridge for an ink jet recording apparatus, comprising:
-
a cartridge body for accommodating ink with at least one ink chamber, wherein said cartridge body comprising;
at least an air vent for providing fluid communication between said ink chamber and outside air;
at least an ink outlet port for supplying the ink from said ink chamber;
at least a sealing member provided within said ink outlet port for sealing said ink outlet port;
at least a one-way valve disposed within said ink chamber for controlling ink flow, wherein said at least one-way valve is integrally provided with;
a foot support portion sealing an interior wall of said ink outlet port;
a wall support portion projecting from the interior of said foot support portion;
a shoulder support portion bending toward interior of said wall support portion;
a head support portion projecting from said shoulder support portion with a through hole; and
at least a valve sealing assembly being maintained selectively in contact with said head support portion through hole by a pressure difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 38, 39, 40)
-
-
32. A one-way valve for controlling the ink flow comprising a foot support portion;
-
a wall support portion projecting from the interior of foot support portion;
a shoulder support portion bending toward interior of said wall support portion; and
a head support portion projecting from said shoulder support portion with a through hole. - View Dependent Claims (33, 34, 35)
-
-
36. An ink filling method for filling an ink cartridge provided with an ink guide cavity formed by a one-way valve and a sealing assembly, comprising the steps of:
-
sealing the ink cartridge;
forming a negative pressure in said ink guide cavity of the ink cartridge by drawing the air in both said ink guide cavity and ink chamber;
filling a pre-defined amount of ink into the ink cartridge. - View Dependent Claims (37)
-
Specification