← Back to Patent Explorer
EP0609966A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Imaging system with intermediate transfer member

Assignee: HP Indigo BV
•
Filing: 1990-12-13
•
Granted: —
•
Expires: 2010-12-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Imaging apparatus for printing an image on a substrate from a latent image formed on a latent image bearing surface including: developing apparatus for developing the latent image with a liquid developer to form a developed liquid toner image; a first intermediate transfer member; first transfer apparatus for transferring the developed image from the latent image bearing surface to the first intermediate transfer member at a first transfer region; a second intermediate transfer member; second transfer means for transferring the developed image from the first image transfer member to the second intermediate transfer member at a second transfer region; and third transfer apparatus for transferring the developed image from the second intermediate transfer member to the substrate. <IMAGE>

Inventors

  • 👤 Ishaiau Lior
  • 👤 Benzion Landa
  • 👤 Amiran Lavon
  • 👤 Hanna Pinhas

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 15:21
CPC Classifications
G; G03; G03G; G03G7/00; G03G15/00; G03G15/01; G03G15/0105; G03G15/0131; G03G15/0142; G03G15/0147; G03G15/0152; G03G15/0173; G03G15/14; G03G15/16; G03G15/1605; G03G15/161; G03G15/22; G03G15/23; G03G15/231; G03G15/232; G03G15/238; G03G5/00; G03G5/02; G03G5/04; G03G2215/00; G03G2215/01; G03G2215/0167; G03G2215/0174; G03G2215/06; G03G2215/0602; G03G2215/0626; G03G2215/16; G03G2215/1666; G03G2215/1671; G03G2215/1676; G03G2215/1695

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 66 words
A method of transferring a first liquid toner image from a first surface having a first temperature to a second surface having a second liquid toner image thereon, comprising the steps of: heating said second surface to a second temporature at transfer, which second temperature is higher than said first temperature; and transferring said first and second images to a final substrate from said second surface.
Claim 2
Dependent Claim 32 words
A method according to claim 1 wherein said second temperature is lover than a temperature at which said second liquid toner image would transfer to said first surface from said second surface.
Claim 3
Dependent Claim 17 words
A method according to claim 1 or claim 2 wherein said step of transferring is by electrophoresis.
Claim 4
Independent Claim 133 words
A method for forming an image on a final substrate comprising the steps of: forming a first liquid toner image on a surface using a liquid developer, comprising carrier liquid and charged toner particles; transferring said first liquid toner image to an intermediate transfer member, said first liquid toner image being at a higher temperature during said transfer than during its formation; forming a second liquid toner image using a liquid developer comprising carrier liquid and charged particles; transferring said second liquid toner image to said intermediate transfer member at least partially superimposed on said first liquid toner image to form multiple images, said second liquid toner image being at a higher temperature during its transfer than during its formation; and transferring said first and second liquid toner images to a final substrate.
Claim 5
Dependent Claim 46 words
A method according to claim 4 further comprising the step of: transferring said multiple images to a final substrate, said multiple images being at a higher temperature during said multiple image transfer step than during the steps of transferring said first and second liquid toner image.
Claim 6
Dependent Claim 33 words
A method according to claim 4 or claim 5 wherein the step of forming a first liquid toner image includes the step of developing a latent electrostatic image on said image bearing surface.
Claim 7
Independent Claim 32 words
A method according to any of claims 4-6 wherein the step of forming a second liquid toner image includes the step of developing a latent electrostatic image on said image bearing surface.
Claim 8
Dependent Claim 147 words
Imaging apparatus for printing multicolor images from first and second latent images formed on a latent image bearing surface comprising: means for developing said first latent image with a liquid developer comprising carrier liquid and charged pigmented particles of a first color; means for developing said second latent image with a liquid developer comprising carrier liquid and charged pigmented particles of a second color; an intermediate transfer member for receiving developed images from said latent image bearing surface; first transfer means for sequentially transferring said first and said second color images from said latent image bearing surface to said intermediate transfer member in mutual alignment; first heating means for heating said developed images before completion of their respective transfers from said latent image bearing surface to said intermediate transfer member; and second transfer means for transferring said aligned images to a final substrate from said second surface.
Claim 9
Dependent Claim 36 words
Apparatus according to claim 8 wherein said second transfer means includes a second intermediate transfer member adapted to receive images from said first intermediate transfer member prior to transfer of said images to the final substrate.
Claim 10
Dependent Claim 46 words
Apparatus according to claim 8 or claim 9 further comprising: second heating means for further heating of said developed first transferred image such that it is at a higher temperature during its transfer to said final substrate than during its transfer to said intermediate transfer member.

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