AN ENGAGEMENT MECHANISM FOR A DEVELOPING MEANS IN AN ELECTROSTATIC COPYING MACHINE

摘要

An engagement mechanism for a developing means in an electrostatic copying machine, wherein an original image is guided to a photoreceptor arranged on a rotary drum via a focusing device, forming an electrostatic latent image on the photoreceptor and the electrostatic latent image being positively changed into a toner image by the developing means, and the rotary drum is supported in a freely rotatable fashion by the supporting member at the supporting frame body which can be drawn out from a vertical front plate of the copying machine body and a contact surface controlling a horizontal position of the developing means and a guide controlling a vertical position are provided at a fixed position of the supporting member, and furthermore the engagement member rotatable to one direction from the standard position is provided movably toward the rotary drum at the standard position with a constant impetus thereto separately from the supporting member and the developing means is arranged movably toward the rotary drum by engaging an engagement part formed at a fixed position of the engagement member aforementioned with an engagement part formed at the fixed position of the development means.