PURPOSE: To provide the developing method with which good threshold performance of electrification can be obtained and the change in developing properties due to the environmental change is inhibited from occurring over a long period and also generation of the ghost image due to development liable to occur at the time of performing the thin layer formation type development can be prevented from occurring and further, the developing device is not adversely affected by the sticking of the fused toner, etc., to the device itself and image density is stabilized over a long period and generation of image defects such as fogging, etc., is inhibited from occurring.
CONSTITUTION: The non-magnetic single component developing method comprises producing a non-magnetic toner by adding at least inorganic particles to and mixing them with colored particles consisting of at least a resin and a colorant and performing development through carrying in the developing region a developer obtained by forming a thin layer of the non magnetic toner having 10 to 200μm thickness on each of the particles of a developer carrier with a thin layer forming device. At this time, the surface of the thin layer forming device contains at least a magnesium compound represented by the formula Mg(X)n (wherein X is O, CO3 or OH and (n) is an integer of 1 or 2).
ISHIKAWA MICHIAKI
OGAWA KEIKO
