US4340897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning device for writing heads used in ink jet recorders and printers
Assignee: Pitney Bowes Inc
•
Filing: 1981-07-29
•
Granted: 1982-07-20
•
Expires: 2001-07-29
Abstract
Abstract An apparatus for use in an ink jet recording device or printer for cleaning a writing head having at least one orifice therein through which ink flows is disclosed. The apparatus comprises a manifold movable in a horizontal direction and including an internal reservoir and a brush formed of a plurality of fiber elements extending from the reservoir through the manifold, the fiber elements being urged into contact with the writing head upon sufficient movement of the manifold; a vacuum system communicating in fluid flow with the reservoir for forming a negative air pressure along the fibers; and an ink collecting chamber for containing discharged ink from the writing head, the chamber communicating in fluid flow with both the manifold and the vacuum system, whereby upon the fibers being urged into contact with the writing head the vacuum system causes ink to flow from the writing head along the fibers and into the collecting chamber.
Inventors
- 👤 Peter T. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:02
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/165; B41J2/16517; B41J2/16535; B41J2/16538; B41J2/16541
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
An apparatus for use in an ink jet recording device or printer for cleaning a writing head having at least one nozzle therein through which ink flows, said apparatus comprising: manifold means movable in a horizontal direction and including an internally located reservoir and a brush formed of a plurality of fiber elements extending from the reservoir through the manifold, the fiber elements being urged into contact with said nozzles upon sufficient movement of the manifold; vacuum means communicating in fluid flow with said reservoir for forming a negative air pressure along said fibers; and chamber means communicating in fluid flow with both said manifold and said vacuum means, whereby upon said fibers being urged into contact with said nozzles said vacuum means causes ink to flow from said writing head along said fibers and into said chamber.
Claim 2
Independent Claim
138 words
An apparatus for use in an ink jet recording device or printer for cleaning a writing head having at least one nozzle therein through which ink flows, said apparatus comprising: manifold means movable in a horizontal direction and including an internally located reservoir and a brush formed of a plurality of fiber elements extending from the reservoir through the manifold, the fiber elements being urged into contact with said nozzles upon sufficient movement of the manifold; vacuum means communicating in fluid flow with said reservoir for forming a negative air pressure along said fibers; and chamber means communicating in fluid flow with both said manifold and said vacuum means, whereby upon said fibers being urged into contact with said nozzles said vacuum means causes ink to flow from said writing head along said fibers and into said chamber.
Claim 3
Dependent Claim
21 words
An apparatus according to claim 1 wherein said fibers are of a material that will not react chemically with said ink.
Claim 4
Dependent Claim
11 words
An apparatus according to claim 2 wherein said fibers are glass.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 1 wherein a plurality of brushes extend from said manifold.
Claim 6
Dependent Claim
24 words
An apparatus according to claim 4 wherein at least one of said brushes extends beyond said manifold a distance greater than the other brushes.
Claim 7
Dependent Claim
170 words
In an ink jet printer having a plurality of ink jet writing heads each of said heads having a plurality of nozzles through which ink flows, an apparatus for cleaning each of said writing heads comprising: a manifold means positioned at each of said writing heads, each manifold movable in a horizontal direction and including an internally located reservoir and a brush formed of a plurality of fiber elements extending from the reservoir through the manifold, the elements being urged into contact with said nozzles upon sufficient movement of the manifolds; vacuum means communicating in fluid flow with said reservoir for forming a negative air pressure along said fibers located on each of said manifolds; and chamber means for containing discharged ink from said writing heads, the chamber means communicating in fluid flow with both said manifolds and said vacuum means, whereby upon said fibers being urged into contact with said nozzles said vacuum means causes ink to flow from said writing heads along said fibers and into said chamber.
Claim 8
Dependent Claim
170 words
In an ink jet printer having a plurality of ink jet writing heads each of said heads having a plurality of nozzles through which ink flows, an apparatus for cleaning each of said writing heads comprising: a manifold means positioned at each of said writing heads, each manifold movable in a horizontal direction and including an internally located reservoir and a brush formed of a plurality of fiber elements extending from the reservoir through the manifold, the elements being urged into contact with said nozzles upon sufficient movement of the manifolds; vacuum means communicating in fluid flow with said reservoir for forming a negative air pressure along said fibers located on each of said manifolds; and chamber means for containing discharged ink from said writing heads, the chamber means communicating in fluid flow with both said manifolds and said vacuum means, whereby upon said fibers being urged into contact with said nozzles said vacuum means causes ink to flow from said writing heads along said fibers and into said chamber.
Claim 9
Dependent Claim
19 words
An apparatus according to claim 6 wherein said manifold means are secured to a movable carriage within said printer.
Claim 10
Dependent Claim
11 words
An apparatus according to claim 6 wherein said fibers are glass.
Claim 11
Dependent Claim
17 words
An apparatus according to claim 6 wherein a plurality of brushes extend from each of said manifolds.
Claim 12
Dependent Claim
29 words
An apparatus according to claim 9 wherein at least one of said brushes on each of said manifolds extends beyond said manifold a distance greater than the other brushes.
Claim 13
Dependent Claim
14 words
An apparatus according to claim 6 wherein said printer is an ink jet addresser.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |