"Copier warehouses across the country are filled with row upon row of used machines ready for resale. But CBS 5 Investigates found many of them hold private and sensitive information never cleared from internal hard drives. What most people think of as copy machines are these days known as "multi-function machines" that also scan, fax and even email. But to do all that, the machines store copies of documents on hard drives in a range of sizes. John Juntunen founded a Sacramento-area company focused on securing copier data. He said the hard drives can hold as many as 25,000 documents. His company, Digital Copier Security Inc., has found examples such as a high school student's record complete with photo and date of birth. They're records that schools are supposed to keep private. Finding tax returns is also not unusual." http://cbs5.com/investigates/copier.identity.theft.2.1471886.html