Improved electrographic recording apparatus employing an improved drive circuit

作者: Chad Z. Moore

DOI:

关键词:

摘要: In accordance with the present invention there is provided an electrographic recording apparatus for on electrostatic charge retentive record medium and a driver circuit suitable use therein. The comprises plurality of electrodes mounted in close proximity to medium. A complementary are electrical cooperative relationship electrodes. Improved circuits applying voltage current branch which electrode connected. control supplying through branch, biases diodes force reference potential. further charges storage element. To apply high electrode, blocks flow. potential stored element causes base-emitter flow forward bias transistor. Forward biasing transistor connects supply. When again permits flow, it become reverse biased return Another aspect improved includes assembly memory assembling parts line data, image controlling transfer system transferring assembled data from write memory. Also included transfer/assembly alternately causing contemporaneous one reading out preceding between memories. address generating addressing words actuating appropriate corresponding