Patent ID: 7344615

Claim:
A method of preparing a charge roller, comprising: arranging two parallel rails on a plate such that when an unfinished charge roller is placed on the rails, the ends of an elastic member wrapped around a metal core of said unfinished charge roller are outside the rails; setting two film members in parallel to each other with respective adhesive surfaces facing away from the plate such that the two film members are outside and parallel to respective edges of said rails and leading edges of said two film members are positioned at different distances from said unfinished charge roller; placing said unfinished charge roller on said rails so that the ends of said elastic member wrapped around said metal core of said unfinished charge roller are placed outside said rails; and moving said unfinished charge roller by rotation along said pair of rails so that said two film members are adhered with said respective adhesive surfaces to said both ends of said elastic member wrapped around said metal core of said unfinished charge roller.