Patent ID: 7060191

Claim:
A method of manufacturing a magnet roller, the magnet roller comprising: a rotary sleeve including a predetermined pattern having a predetermined number of recesses per unit area formed on an outer surface of the sleeve; and a magnet disposed in the sleeve, wherein the method comprises the steps of: (a) depositing resist to the outer surface of the sleeve by printing, said resist prevented from being deposited on portions of said sleeve while, on other portions of said sleeve, said resist is deposited so that said predetermined pattern is formed; and (b) performing etching to the outer surface for forming the predetermined pattern on sections where no resist is printed as recesses in the rotary sleeve; (c) ejecting the resist from a nozzle to the outer surface of the sleeve in a manner corresponding to a shape of the pattern, so that the resist attaches to the outer surface of the sleeve for forming a predetermined shape, wherein the elected resist attaches to a first portion of the outer surface of the sleeve; (d) rotating the sleeve by a predetermined angle; (e) ejecting the resist from the nozzle for attaching the resist to another portion of the outer surface of the sleeve; (f) rotating the sleeve by the predetermined angle; and (g) repeating steps (e) and (f) for attaching the resist to other portions of the outer surface of the sleeve for drawing the predetermined shape with the resist.