Greg on Twitter: "Printed medium is pretty cool under the microscope. The yellow dots in the area around the printer are likely part of a machine identification code the printer adds. https://t.co/bZ7tt88WvN" /
![Amazon.com: Bodno Magicard D Dual Sided ID Card Printer & Complete Supplies Package ID Software - Gold Edition : Office Products Amazon.com: Bodno Magicard D Dual Sided ID Card Printer & Complete Supplies Package ID Software - Gold Edition : Office Products](https://m.media-amazon.com/images/I/71iAHkNkwsL.jpg)
Amazon.com: Bodno Magicard D Dual Sided ID Card Printer & Complete Supplies Package ID Software - Gold Edition : Office Products
![Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation](https://www.eff.org/files/test04-blue_square.png)
Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation
![Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation](https://www.eff.org/files/test06-text_0.png)
Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation
![Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation Investigating Machine Identification Code Technology in Color Laser Printers | Electronic Frontier Foundation](https://www.eff.org/files/xerox_doc12_test07_checkerboard.jpg)