Canon Kabushiki Kaisha

Tetsuhiro Shibayama

Hiroaki Tsuchiya

Toru Katsumi

Yuji Kamiya

Haruhisa Honda

In an electrophotographic image forming apparatus, a potential measurement device for measuring the surface potential of the electrostatic latent image and a reflective density measurement device for measuring the density of a visible image developed from the latent image are made movable, in mutually synchronized manner, along the axial direction of the rotating photosensitive member. In this manner the image forming ability can be measured over the entire surface of the photosensitive member, and the process conditions can be suitably regulated according to the results of measurements.

Method and apparatus for correcting image formation in accordance with a

A transfer material separating device for separating a transfer material from a surface of an image bearing member after an image formed on the image bearing member is electrostatically transferred onto a transfer material at a transfer station includes a separating electrode, disposed downstream of the transfer station with respect to movement direction of the transfer material, for causing electric discharge between the transfer material and the separating electrode, and a moisture absorbable member disposed adjacent the separating electrode and electrically isolated, the moisture absorbable member being capable of absorbing moisture and having an electric resistance which changes with moisture absorbed thereby.

Growing community of inventors

Yokohama, Japan

Tetsuhiro Shibayama