Patent ID: 9152088
Filing Date: 2015-10-06
Classification: G03G

Abstract:
1. A developer replenishing cartridge, comprising: a developer replenishing container, and a developer, the developer replenishing cartridge being removably mountable to a developer replenishing apparatus; wherein: the developer replenishing container includes the developer contains toner; the toner includes toner particles each containing a binder resin and a wax, and silica fine particles present on surfaces of the toner particles; the silica fine particles have a number-average particle diameter of primary particles of 60 nm or more and 300 nm or less; a coverage rate of the surfaces of the toner particles with the silica fine particles is 15% or more and 95% or less; the toner has a uniaxial collapse stress at a maximum consolidation stress of 10.0 kPa, of 2.5 kPa or more and 3.5 kPa or less; and the developer is contained in the developer containing portion of the developer replenishing container.