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US 5,156,472 AGranted
Dot matrix printer supply system having ink absorbing member filled under reduced pressure
AssigneeSeiko Epson Corporation
InventorsTakashi Suzuki, Masanao Matsuzawa, Yoshinori Miyazawa
Life of this patent
Estimating the term…
Abstract
An ink-supply system for a dot matrix printer including an ink-supply tank having an ink-supply delivery port, an ink impregnated member formed of a porous material within the ink-supply tank, and ink impregnated in the ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member.
Claims39
A dot matrix printer, comprising:
- printing means for applying ink in a dot matrix to effect printing;
- and
- an ink supply means for delivering ink to said printing means comprising:
- an ink-supply tank;
- an ink absorbing member formed of a porous material within said ink-supply tank;
- ink impregnated in said ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member;
- and
- means projecting into said ink-supply tank for receiving and transmitting ink from said ink absorbing member for delivery to said dot matrix printer head, whereby air bubbles which would adversely affect operation of the printer are substantially eliminated.
5 more elements
A dot matrix printer, comprising:
- printing means for applying ink in a dot matrix to effect printing;
- and
- an ink supply means for delivering ink to said printing means comprising:
- an ink-supply tank having an ink-supply delivery port;
- an ink absorbing member formed of a porous material within said ink-supply tank;
- and
- ink impregnated in said ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member, whereby air bubbles which would adversely affect operation of the printer air substantially eliminated.
4 more elements
An ink-supply system for a dot matrix printer head, comprising:
- an ink-supply tank;
- an ink absorbing member formed of a porous material within said ink-supply tank;
- ink impregnated in said ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member;
- and
- means projecting into said ink-supply tank for receiving and transmitting ink from said ink absorbing member for delivery to said dot matrix printer head, whereby air bubbles which would adversely affect operation of the printer are substantially eliminated.
2 more elements
An ink-supply system for a dot matrix printer head, comprising:
- an ink-supply tank having an ink-supply delivery port;
- an ink absorbing member formed of a porous material within said ink-supply tank;
- and
- ink impregnated in said ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member, wherein air bubbles which would adversely affect operation of the printer are substantially eliminated.
1 more element
The method of applying ink to a dot matrix printer, comprising:
- storing ink in a ink-supply tank having an ink-supply delivery port;
- providing an ink absorbing member formed of a porous material in said ink-supply tank so that substantially the desired capacity of ink for said ink-supply tank is carried by the ink absorbing member;
- and
- impregnating ink in said ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member, whereby air bubbles which would adversely affect operation of the printer are substantially eliminated.
1 more element
The method of applying ink to a dot matrix printer, comprising:
- storing ink in an ink-supply tank;
- providing an ink absorbing member formed of a porous material in said ink-supply tank so that substantially the desired capacity of ink for said ink-supply tank is carried by the ink absorbing member;
- providing means projecting into the ink-supply tank for receiving and transmitting ink from the ink absorbing member for delivery to the printing means;
- and
- impregnating ink in said ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member, whereby air bubbles which would adversely affect operation of the printer are substantially eliminated.
2 more elements
Dependencies are inferred from the claim text.