Paul
It depends on your printer model and how you scan them, what software you use, the location can vary. This is not a standard feature from Windows, so I cannot tell you within one answer where to look.
Can you tell me how you scanned it to be exact? For example, did you use a software on the computer side to scan? If so, what is the name of the software?
Or did you use the scan feature directly on the scanner itself and have it send to the computer? Has it worked before? What's your printer's model number?