Abstract
In Electrophotographic copiers and printers, reducing the amount of beam spot misregistrations is one of the most important issues of reali zing high quality images. To solve this issue, it is necessary to clarify the mechanisms of generating the misregistrations, to find vibration parts of high co rrelation with the misregistrations and to to ke measures to the parts. In this study, in order t o clarify the mechanisms of the misregistrations, a new measurement method which i s available to get the a mount of bea m spot misregistrations and the vi bration of the op tical devices simultaneously and a data ext raction method of characteristics of couples of beam spot misregistrations and the vibrations are developed. Using these methods, it is possible to estimate the parts of vibration that cause misregistrations mainly and to estimate the tendency of the transfer function which is synthesized from the extracted characteristics. Also, these methods were verified using experimental devices.
