Rotary charged image copier of printer - has scan signal system and control impulse production system to activate processing functions

摘要

The copier or printer has a rotating element (8). A large number of processing devices (1, 11) are used to produce an electrostatic latent image of changed type on the rotatable element (8) and to develop the change image and transfer it to the image sensitive copying material (31). A device (59, 60) is used to provide a series of scan signals relating to the rotation of the rotatable element (8). Another device produces control impulses in a repeated manner during each operational cycle, in synchronising with the new signals, and a control device (413-416) controls the required functioning of the processors synchronously with the control impulses.