Claims
- 1. A printer for a re-writable medium, the medium having a first recording layer that includes a plurality of microcapsules, the printer comprising:
- photoconductor means for storing a high voltage charge deposited thereon;
- writing means for writably erasing the charge deposited on the photoconductor means; and
- support means for holding the re-writable medium proximate to the photoconductor means in a nip contact area such that, when the re-writable medium passes the charge written photoconductor means, fields generated from the photoconductor means cause orientation of bichromal, bistable colorant within the microcapsules to develop a print image on the re-writable medium.
- 2. The printer as set forth in 1, wherein the support means is biased such that the fields are generated between the photoconductor means and the support means and cause orientation of the colorant within the microcapsules.
- 3. The printer as set forth in 1, wherein the first recording layer of the re-writable medium is disposed on a substrate including a conductive layer and the conductive layer is biased such that the fields are generated between the photoconductor means and the conductive layer to orient the colorant within the microcapsules.
- 4. The printer as set forth in 3, wherein the re-writable medium includes a second recording layer disposed on the substrate and opposing the first recording layer, wherein the support means and the conductive layer are biased such that the fields are generated between the photoconductor means and the conductive layer and cause orientation of the colorant within the microcapsules in the first recording layer but not in the second recording layer.
- 5. The printer as set forth in 1, comprising medium type detection means for detecting presence of the re-writable medium for printing.
- 6. The printer as set forth in 1, comprising medium orientation detection means for detecting proper orientation of the re-writable medium for printing.
- 7. The printer as set forth in 6, wherein if the medium orientation detection means detects improper orientation of the re-writable medium for printing, the writing means writably erases the charge deposited on the photoconductor means according to a mirror of the print image such that, when the re-writable medium passes the charge written photoconductor means, fields generated from the photoconductor means cause orientation of the colorant within the microcapsules to develop the print image properly on the re-writable medium.
- 8. The printer as set forth in 1, comprising medium erasure means for erasing the re-writable medium prior to printing.
- 9. The printer as set forth in 8, wherein the medium erasure means and the photoconductor means are biased so as to apply approximately equal magnitude but opposite direction fields to the re-writable medium when respectively erasing and writing.
- 10. The printer as set forth in 1, wherein the support means is biased so as to erase prior orientation of colorant within the microcapsules of the re-writable medium while printing.
- 11. The printer as set forth in 10, wherein the support means and the photoconductor means are biased so as to apply approximately equal magnitude but opposite direction fields to the re-writable medium when the photoconductor is respectively charged and discharged.
- 12. The printer as set forth in 1, wherein the printer can enter a toner print mode, such that when in the toner print mode, the photoconductor means and the support means are biased to make charged toner particles deposited on the photoconductor means be transferred to the writable medium, in accordance with the writable erasing of the charge deposited on the photoconductor means.
- 13. The printer as set forth in 12, comprising fuser means for fusing toner onto the writable medium after rinting in the toner print mode.
- 14. The printer as set forth in 12, comprising medium type detection means for detecting presence of the re-writable medium for printing, and if re-writable medium presence is not detected, causing the printer to enter the toner print mode.
- 15. A printing process, the process comprising the steps of:
- depositing a high voltage charge on a photoconductor;
- writably erasing the charge deposited on the photoconductor; and
- holding a re-writable medium proximate to the photoconductor in a nip contact area, the re-writable medium having a first recording layer that includes a plurality of microcapsules such that, when the re-writable medium passes the charge written photoconductor, fields generated from the photoconductor cause orientation of bichromal, bistable colorant within the microcapsules to develop a print image on the re-writable medium.
- 16. The process as set forth in 15, comprising the step of biasing a support holding the re-writable medium proximate to the photoconductor such that the fields are generated between the photoconductor and the support to cause orientation of colorant within the microcapsules.
- 17. The process as set forth in 15, wherein the first recording layer of the re-writable medium is disposen a substrate including a conductive layer, the process comprising the step of biasing the conductive layer such that the fields are generated between the photoconductor and the conductive layer and cause orientation of the colorant within the microcapsules.
- 18. The process as set forth in 17, wherein the re-writable medium includes a second recording layer disposed on the substrate and opposing the first recording layer, the process comprising the step of biasing the support and the conductive layer such that the fields are generated between the photoconductor and the conductive layer and cause orientation of the colorant within the microcapsules in the first recording layer but not in the second recording layer.
- 19. The process as set forth in 15, comprising the step of detecting presence of the re-writable medium for printing.
- 20. The process as set forth in 15, comprising the step of detecting proper orientation of the re-writable medium for printing.
- 21. The process as set forth in 20, comprising the step of:
- if improper orientation of the re-writable medium for printing is detected, then writably erasing the charge deposited on the photoconductor according to a mirror of the print image such that, when the re-writable medium passes the charge written photoconductor, fields generated from the photoconductor cause orientation of the colorant within the microcapsules to develop the print image properly on the re-writable medium.
- 22. The process as set forth in 15, comprising the step of erasing the re-writable medium prior to printing.
- 23. The process as set forth in 22, wherein a medium eraser and the photoconductor are biased so as to apply approximately equal magnitude but opposite direction fields to the re-writable medium when respectively erasing and writing.
- 24. The process as set forth in 15, comprising the step of biasing a support, holding the re-writable medium proximate to the photoconductor, so as to erase prior colorant orientation within the microcapsules of the re-writable medium while printing.
- 25. The process as set forth in 24, wherein the support and the photoconductor are biased so as to apply approximately equal magnitude but opposite direction fields to the re-writable medium when the photoconductor is respectively charged and discharged.
- 26. The process as set forth in 15, comprising the step of entering a toner print mode, such that when in the toner print mode, the photoconductor and a support, holding the re-writable medium proximate to the photoconductor, are biased to make charged toner particles deposited on the photoconductor be transferred to the writable medium, in accordance with the writable erasing of the charge deposited on the photoconductor.
- 27. The process as set forth in 26, comprising the step of fusing toner onto the writable medium after printing in the toner print mode.
- 28. The process as set forth in 26, comprising the step of detecting presence of the re-writable medium for printing, and if re-writable medium presence is not detected, causing the printer to enter the toner print mode.
- 29. An electrode-less re-writable medium, comprising:
- a substrate; and
- a first recording layer on the substrate, the first recording layer including a first plurality of microcapsules having bichromal, bistable colorant within the microcapsules.
- 30. The re-writable medium as set forth in 29, comprising a protective layer, the first recording layer being disposed between the protective layer and the substrate.
- 31. A re-writable medium, comprising:
- a substrate having a conductive layer;
- a first recording layer on the substrate, the first recording layer including a first plurality of microcapsules having bichromal, bistable colorant within the microcapsules; and
- a second recording layer on an opposing side of the substrate from the first recording layer, the second recording layer including a second plurality of microcapsules having bichromal, bistable colorant within the microcapsules.
- 32. The re-writable medium as set forth in 31, comprising a protective layer, the first recording layer being disposed between the protective layer and the substrate.
- 33. The re-writable medium as set forth in claim 29, wherein the substrate is polymer impregnated.
- 34. The re-writable medium as set forth in claim 29, wherein the substrate includes polymer fibers.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 08/864,604 filed on May 28, 1997, now U.S. Pat. No. 5,866,284.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5866284 |
Vincent |
Feb 1999 |
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Continuations (1)
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Number |
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Parent |
864604 |
May 1997 |
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