Image formation method using color toners

U.S. Patent Number: 6248488

Abstract: A method of forming images on an image receiving material including a non-contact thermal fusing image fixing step employs a black toner made of black toner particles, a yellow toner made of yellow toner particles, a magenta toner made of magenta toner particles and a cyan toner made of cyan toner particles, the black toner particles having a greater volume mean diameter than the volume mean diameter of the toner particles of any of the yellow toner, the magenta toner and the cyan toner.

Inventors: Kinoshita; Nobutaka (Shizuoka, JP); Aoki; Mitsuo (Shizuoka, JP); Kuramoto; Shinichi (Shizuoka, JP); Oyamaguchi; Akira (Shizuoka, JP); Sugimoto; Hiroshi (Shizuoka, JP)

Assignee: Ricoh Company, Ltd. (Tokyo, JP)

Application Number: 09/231,769

Issued: 2001-06-19

Expired: 2005-06-19

Classes: 430/45 ; 430/107.1; 430/124

Field of search: 430/42,45,124,106,111,97,110,126,47

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