Patent ID: 8587622
Filing Date: 2013-11-19
Classification: B41J,G03G

Abstract:
1. A method of forming an electrostatic latent image, comprising: receiving, via a rotary electrical contact, serially transmitted digital printing signals from a controller; receiving, via the rotary electrical contact, operating voltages; converting, at a power supply that is coupled to the rotary electrical contact and that is located inside of a rotating imaging drum, the operating voltages into a voltage signal and a high voltage signal; transferring driving signals to address multitude of thin-film transistors (TFTs) individually in a TFT backplane in response to the received digital printing signals along with transferring the high voltage signal to the TFT backplane; transferring pixel voltages to bias individual TFTs in the TFT backplane to generate the electrostatic latent image in response to the received digital printing signals; and supplying, from the power supply, the voltage signal and a ground signal to driving electronics.