PRINTING HEAD OF POWDER JET IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a printing head of a powder jet image forming apparatus capable of preventing the occurrence of nonuniformity of density to be caused by curvature of the outer surface of a developer supply roller. SOLUTION: The printing head of a powder jet image forming apparatus is such that each shortest distance from the surface at a developer supply roller 1 side of respective first electrodes 21-1-21-8 to the developer supply roller 1 is set in all parts of the first electrodes 21-1 to 21-8.