SCANNING ELECTROMETER AUTO ZERO SYSTEM
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Xerox Disclosure Journal
A block diagram of the scanning electrometer system of the present invention is shown in Figure 1. A photoreceptor or X-rayimage receptor 1, consisting of conducting substrate 2, voltage source 1 ' being connected thereto and a semi-conductor coating 3 having a latent image or charge distribution pattern representing desired information thereon. A probe 5 senses the charge pattern on the surface of photoreceptor 3 across the gap 4, Probe 5 drives the input of detector 14 such that the output voltage on lead 13 is fed to an inverting amplifier 6. The amplifier output at terminal 7 corresponds to the latent image.