dell photo 966 no longer scanning and saving to new laptop, Latitiude E6430 on windows 7

recently bought new Latitude and for the last few months i have been able to scan documents. yesterday it stopped scanning and i have tried several solutions with no success. I have received several error messages including the latest:

Message on laptop - A problem prevented the document from being scanned. please try again, or for troubleshooting information, see etc. etc. 

Message from Scanner - Operation could not be completed (error 0x00000015). The device is not ready. 

please provide some further advice or perhaps remote in to help.