Electrophotography, one of the most prevalent applications of electrostatics, is the technology used in copiers and laser printers. In this review, the basis of the technology will be discussed, from the basic six steps to the underlying physics of the process. Discussions will include the physics of surface charging of insulators based on Paschen breakdown, the static electrification of insulating particles (sometimes called triboelectricity) and current challenges in color electrophotography, all of which evolved from Franklin's early experiments in electrostatics.