I have purchased the HP photosmart C4780 for my computer which have windows 7 in it. Which includes scanner, printer, and copier But I have use the scanner for one time only after that it is not working again I don’t know what is wrong with that. When I put a paper in it and when I close the lid and trying to scan it. When I click on scan at that it give me ERROR that like scan error and it says try scan from computer or see the file location folder. Now io don’t know what to do now with this problem. Please suggest me some solution which helps me. To solve it.