| 摘要 |
PROBLEM TO BE SOLVED: To enable printing perfectly free from banding and high in image homogeneity and density resolution by specifying the moving speed of a receiving support and the number of rotations of the sleeve of a magnetic brush assembly. SOLUTION: A direct electrostatic (DEP) apparatus includes a back electrode 105, a printing head structure 106 including an array of orifice parts capable of electrically modulating a particle flow, a receiving support 109 moving at a speed Vsub between the back electrode 105 and the printing head structure 106, a toner transport means 101 provided on the front side of the printing head structure having a brush assembly 103 including a core and a sleeve and the developing soln. in the toner transport means containing at least toner particles and magnetically attractive carrier particles. The receiving support 109 is moved at a speed Vsub >=10 cm/min, and the sleeve of the magnetic brush assembly 103 is rotated at a speed Vrol higher than 100 rpm.
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