← Back to Patent Explorer
EP0117718A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Ink cartridge in an ink jet system printer

Assignee: Sharp Corp
•
Filing: 1984-02-22
•
Granted: —
•
Expires: 2004-02-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An ink liquid supply system for an ink jet system printer includes an ink intake needle (12) formed in a body of the ink liquid supply system, and an ink cartidge (10) removably mounted on the body of the ink liquid supply system. The ink cartridge includes an opening (64) covered by a seal rubber (66) through wich the ink intake needle is inserted when the ink cartridge is mounted on the body of the ink liquid supply system. An ink liquid absorbing pad (68) is attached to the seal rubber so as to cover the seal rubber. The ink liquid absorbing pad functions to prevent the ink liquid from dropping onto the body of the ink liquid supply system when the ink cartridge is demounted from the body of the ink liquid supply system.

Inventors

  • 👤 Masaaki Kuranishi
  • 👤 Masahiko Aiba

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 16:44
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/1752; B41J2/17523

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 142 words
In an ink liquid supply system for an ink jet system printer including an ink cartridge removably secured to a body of the ink liquid supply system, and an ink intake needle formed in said body of the ink liquid supply system for introducing ink liquid from said ink cartridge into said body of the ink liquid supply system, said ink cartridge comprising: a bottom wall provided with an opening formed at a position corresponding to said ink intake needle; a seal member disposed at said opening so as to seal said opening; and an ink liquid absorbing member disposed at said opening so as to cover said seal member, wherein said ink intake needle is inserted through said ink liquid absorbing member and said seal member when the ink cartridge is mounted on the body of the ink liquid supply system.
Claim 2
Dependent Claim 142 words
In an ink liquid supply system for an ink jet system printer including an ink cartridge removably secured to a body of the ink liquid supply system, and an ink intake needle formed in said body of the ink liquid supply system for introducing ink liquid from said ink cartridge into said body of the ink liquid supply system, said ink cartridge comprising: a bottom wall provided with an opening formed at a position corresponding to said ink intake needle; a seal member disposed at said opening so as to seal said opening; and an ink liquid absorbing member disposed at said opening so as to cover said seal member, wherein said ink intake needle is inserted through said ink liquid absorbing member and said seal member when the ink cartridge is mounted on the body of the ink liquid supply system.
Claim 3
Dependent Claim 26 words
The ink liquid supply system of claim 1, wherein said body of the ink liquid supply system includes a subtank communicated with said ink intake needle.
Claim 4
Dependent Claim 106 words
The ink liquid supply system of claim 1, further'com - prising: a cylinder shaped projection fixed to said bottom wall of said ink cartridge at the position corresponding to said opening, said cylinder shaped projection being provided with an ink liquid passage formed through the center of said cylinder shaped projection, said ink liquid passage being communicated with said opening; and a cap member capping said cylinder shaped projection with the intervension of said seal member and said ink liquid absorbing member, said cap member being provided with an aperture formed at the position corresponding to said ink liquid passage formed in said cylinder shaped projection.
Claim 5
Dependent Claim 64 words
The ink liquid supply system of claim 3, wherein said cylinder shaped projection includes a thread portion formed on the outer periphery of said cylinder shaped projection, and said cap member includes a thread portion formed on the inner surface of said cap member so that said cap member is secured to said cylinder shaped projection by engaging said thread portions to each other.
Claim 6
Dependent Claim 57 words
An ink liquid supply system for an ink jet printer, comprising a removable ink cartridge having a portion penetrable by an ink-conducting needle forming part of the system, and an ink liquid absorbing member associated with said penetrable portion for preventing formation of free ink drips when the cartidge is removed and hence the needle is withdrawn.
Claim 7
Dependent Claim 57 words
An ink liquid supply system for an ink jet printer, comprising a removable ink cartridge having a portion penetrable by an ink-conducting needle forming part of the system, and an ink liquid absorbing member associated with said penetrable portion for preventing formation of free ink drips when the cartidge is removed and hence the needle is withdrawn.
Claim 8
Dependent Claim 25 words
A liquid ink cartridge as referred to in any one of claims 1 to 5 and adapted for use in a system as claimed therein.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag