"Regarding photocopier security, I recovered 8,308 files from a high-capacity Xerox copier in the summer of 2008. The copier was several years old, shared by perhaps two dozen employees, and had a 4 gigabyte IDE hard disk. I recovered both scanned and photocopied TIFF images from user activity as well as TXT, HTML, DOC, PDF, and GIF files. I also recovered about 900 email addresses and file names." ~ from a newsgroup posting this week by a professional electronic evidence recovery specialist.
Photocopier security is only one element of an overall counterespionage strategy. If your organization does not have one. (Or, if you are not sure of the effectiveness of your current one.) Please engage the services of an independent counterespionage security consultant. Don't know where to find one? Click here for a jump start.