xerox reusable paper

Whole word is concerned about reusing waste so Xerox Corporation scientists have invented a way to make prints whose images last only a day, so that the paper can be used again and again. The technology, which is still in a preliminary state, blurs the line between paper documents and digital displays and could ultimately lead to a significant reduction in paper use. it will lead to reduction in use of paper. There will be no wast of paper then.
How this erasable paper will work?
To develop erasable paper, researchers needed to identify ways to create temporary images. The "a-ha" moment came from developing compounds that change colour when they absorb a certain wavelength of light but then will gradually disappear. In its present version, the paper self-erases in about 16-24 hours and can be used multiple times.
what are the other research work that is going on?
While scientists at XRCC work on the chemistry of the technology, their counterparts at PARC - the birthplace of the laser printer - are investigating ways to build a device that could write the image onto the special paper. PARC researchers developed a prototype "printer" that creates the image on the paper using a light bar that provides a specific wavelength of light as a writing source. The written image fades naturally over time or can be immediately erased by exposing it to heat.Xerox copy
What would be benefit of it?
Temporary documents are part of Xerox's ongoing investments in sustainable innovation - or "green products" - that deliver measurable benefits to the environment, such as solid ink printing technology, which generates 90 percent less waste than comparable laser printers; more energy-efficient printers, copiers and multifunction devices; and other paper-saving innovations. So, it is going to save a great amount of paper and tree.
what are the disadvantages?
If some one want it's xerox to remain for longer time then he shall not be able to keep it for long time. They will have to use the recent technology which allows to keep xerox copy for life time.