US5117263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid toner developer
Assignee: HP Indigo BV
•
Filing: 1991-01-22
•
Granted: 1992-05-26
•
Expires: 2011-01-22
Abstract
Abstract Imaging apparatus including an electrostatic imaging surface, latent image forming apparatus for forming an electrostatic latent image on said electrostatic imaging surface and development apparatus for developing said electrostatic latent image which includes supply apparatus for supplying a liquid toner to the image forming surface, the supply apparatus including a multiplicity of independently controllable outlets, preferably spray outlets, and a development surface for developing the electrostatic latent image using the liquid toner. The supply apparatus is preferably a multi-color supply apparatus and the multiplicity of outlets includes a plurality of individually controllable outlets, for supplying liquid toner of each of a plurality of colors.
Inventors
- 👤 Yossi Adam
- 👤 Alon Gazit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:21
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0105; G03G15/0121; G03G15/06; G03G15/10; G03G15/101; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87153
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
76 words
Imaging apparatus comprising: an electrostatic imaging surface; latent image forming means for forming an electrostatic latent image on said electrostatic imaging surface; and development means for developing said electrostatic latent image including: supply means for supplying a particular liquid toner to the image forming surface, said supply means comprising a plurality of independently controllable outlets for supplying said particular liquid toner; and a development surface for developing said electrostatic latent image using said particular liquid toner.
Claim 2
Dependent Claim
76 words
Imaging apparatus comprising: an electrostatic imaging surface; latent image forming means for forming an electrostatic latent image on said electrostatic imaging surface; and development means for developing said electrostatic latent image including: supply means for supplying a particular liquid toner to the image forming surface, said supply means comprising a plurality of independently controllable outlets for supplying said particular liquid toner; and a development surface for developing said electrostatic latent image using said particular liquid toner.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1 wherein said plurality of outlets comprise a plurality of spray outlets.
Claim 4
Dependent Claim
51 words
Apparatus according to claim 1 wherein said supply means is a multi-color supply means for supplying a plurality of liquid toners having a plurality of colors and comprising a multiplicity of outlets including a plurality of individually controllable outlets each said plurality of outlets supplying liquid toner of a particular color.
Claim 5
Dependent Claim
16 words
Apparatus according to claim 2 wherein said plurality of outlets comprise a plurality of spray outlets.
Claim 6
Dependent Claim
113 words
Imaging apparatus comprising: an electrostatic imaging surface; latent image forming means for forming an electrostatic latent image on said electrostatic imaging surface; and development means for developing said electrostatic latent image including supply means for supplying a liquid toner to the image forming surface, said supply means comprising: a multiplicity of outlets for supplying said liquid toner; at least one manifold for supplying liquid toner to said multiplicity of outlets including means for effecting and halting the flow of the liquid toner to the manifold; and means for preventing further discharge of liquid toner from the outlets after the flow is halted comprising means for preventing flow from said outlets to said manifold.
Claim 7
Dependent Claim
113 words
Imaging apparatus comprising: an electrostatic imaging surface; latent image forming means for forming an electrostatic latent image on said electrostatic imaging surface; and development means for developing said electrostatic latent image including supply means for supplying a liquid toner to the image forming surface, said supply means comprising: a multiplicity of outlets for supplying said liquid toner; at least one manifold for supplying liquid toner to said multiplicity of outlets including means for effecting and halting the flow of the liquid toner to the manifold; and means for preventing further discharge of liquid toner from the outlets after the flow is halted comprising means for preventing flow from said outlets to said manifold.
Claim 8
Dependent Claim
50 words
Apparatus according to claim 5 wherein said supply means is a multi-color supply means and said multiplicity of outlets includes a plurality of individually controllable outlets, for supplying liquid toner of each of a plurality of colors and said at least one manifold includes separate manifolds for each said color.
Claim 9
Dependent Claim
16 words
Apparatus according to claim 6 wherein said multiplicity of outlets comprise a multiplicity of spray outlets.
Claim 10
Dependent Claim
15 words
Apparatus according to claim 7 wherein said multiplicity of spray outlets form a single row.
Claim 11
Dependent Claim
27 words
A system according to claim 11 wherein said single row of spray outlets comprises a linear array of interdigitated spray outlets for liquid toner of different colors.
Claim 12
Dependent Claim
16 words
Apparatus according to claim 5 wherein said multiplicity of outlets comprise a multiplicity of spray outlets.
Claim 13
Dependent Claim
15 words
Apparatus according to claim 7 wherein said multiplicity of spray outlets form a single row.
Claim 14
Dependent Claim
28 words
Apparatus according to claim 5 wherein said means for preventing includes at least one one-way valve which allows for toner flow only from said manifold to said outlets.
Claim 15
Dependent Claim
22 words
Apparatus according to claim 12 and also including a filter operative to remove particles from said toner which clog said one-way valves.
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) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |