REPLENISHER DEVELOPER, TONER CARTRIDGE, REPLENISHER DEVELOPER FEEDING DEVICE AND IMAGE FORMING APPARATUS

摘要

PPROBLEM TO BE SOLVED: To provide a replenisher developer having a more stable carrier concentration, and to provide a toner cartridge for feeding to a developing unit with stable quantity and carrier concentration, a replenisher developer feeding device, and an image forming apparatus for suppressing the occurrence of an abnormal image using the replenisher developer feeding device. PSOLUTION: The replenisher developer is obtained by mixing a toner containing a metallic material and having a true specific gravity of 1.35-1.60 g/cmSP3/SPand a carrier in a certain ratio. The toner cartridge 1 filled with the replenisher developer is formed in a bag shape so as to be volume reducible. The replenisher developer feeding device includes a suction pump 3 which sucks the replenisher developer from the toner cartridge 1 and feeds it to a developing unit 6. PCOPYRIGHT: (C)2009,JPO&INPIT