| 摘要 |
<p>PROBLEM TO BE SOLVED: To present a method for image forming made possible to obtain an excellent image over a long period without equipping a cleaning device, while maintaining a low applying voltage and minimized evolution quantity of ozone that stands for a merit of the contact system electrifying device. SOLUTION: In this method for image forming, by forming an electrostatic latent image being electrified by bringing an electrification member, to which a voltage has been applied, into contact with an electrified material surface, and allowing toner to stick on the electrostatic latent image, the toner particle showing a hygroscopic ratio within 0.3% in the variation ratio by weight, after being left standing for 1 hour under environments of relative humidity 30%, at 60 deg.C, after being left standing for 10 hours under the environments of relative humidity 80%, at 30 deg.C is adoppted as the tone particle.</p> |
