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US 4,943,816 AGranted
High quality thermal jet printer configuration suitable for producing color images
AssigneeInternational Business Machines Corporation
InventorAlfred H. Sporer
Life of this patent
Estimating the term…
Abstract
A printer suitable for color printing which uses an ink jet printhead in which the marking fluid contains no dye so that a latent image of the desired print pattern is produced in the form of moistened spots directly on the print medium. The latent image is then developed by applying some colored powder to the print medium, and the developed image is then fixed to the print medium to produce a visible image of the desired print pattern.
Claims18
A printer suitable for producing color images comprising:
- an ink jet printhead for selectively producing drops of a dyeless marking fluid consisting essentially of a mixture of water and a glycol ether;
- an image receiving substrate;
- means for controlling said ink jet printhead to selectively eject said dyeless marking fluid to produce a fluid image of a desired pattern upon said substrate;
- a plurality of roll developing means for developing said fluid image on said substrate while still moist to produce a visible image on said substrate;
- and
- means for fixing said developed image to said substrate to produce a permanent image of the desired pattern on said substrate.
3 more elements
A printer suitable for producing color images comprising:
- an ink jet printhead for selectively producing drops of a dyeless marking fluid consisting essentially of a mixture of water and a polyhydric alcohol;
- an image receiving substrate;
- means for controlling said ink jet printhead to selectively eject said dyeless marking fluid to produce a fluid image of a desired pattern on said substrate;
- a plurality of roll developing means for developing said fluid image on said substrate while still moist to produce a visible image on said substrate;
- and
- means for fixing said developed image to said substrate to produce a permanent image of the desired pattern an said substrate.
3 more elements
Dependencies are inferred from the claim text.