| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a direct digital marking system with a simple configuration. <P>SOLUTION: An apparatus for printing a latent image includes a light source, a photodetector, a rotary contact, a power supply, driving electronics and a plurality of thin-film transistors. The light source receives the digital data signals and transmits encoded optical data signals. The photodetector receives the encoded optical data signals and transmits signals including selection signals and digital pixel voltages. The rotary contact receives operating voltage potentials from a controller and the power supply receives the operating voltage potentials from the rotary contact. The power supply generates a low voltage potential, a ground potential and a high voltage potential. The driving electronics receive the low voltage potential, the ground potential, selection signals and digital pixel voltages and generate bias signals and pixel voltages. The plurality of TFTs receive the high voltage potential, the bias signals and the pixel voltages and drive the hole injection pixels to generate an electrostatic latent image. <P>COPYRIGHT: (C)2013,JPO&INPIT |
