Takao Ishida

Image forming apparatus having integral developing agent storing and removing containers

Detachably mounted toner unit having a toner supply unit and a toner recovery housing unit

Image forming apparatus having integral toner supply cartridge and toner recovery cartridge

Image forming apparatus having an integral toner supply container and toner storage container

Decoloring method and decoloring device

FACSIMILE APPARATUS AND METHOD FOR PRINTING FACSIMILE

CARTRIDGE, IMAGE FORMING APPARATUS AND QUALITY DETERMINING METHOD OF CARTRIDGE

FILE DOCUMENT MANAGEMENT SERVER AND FILE DOCUMENT MANAGING METHOD

APPARATUS THAT FORMS AN IMAGE ON A MEDIUM USING A PLURALITY OF ERASABLE MATERIALS AND ERASING APPARATUS

APPARATUS AND METHOD FOR FORMING AN IMAGE ON A MEDIUM USING A PLURALITY OF ERASABLE MATERIALS