Replenishing developer and developing method

A developing method, comprising:

• developing an electrostatic latent image on an image-bearing member with a two-component developer comprising a toner and a carrier stored in a developer vessel, while periodically supplying a replenishing developer to the developer vessel,
• wherein the replenishing developer comprises 1 wt. part of a carrier and 2-50 wt parts of a toner, wherein the carrier is a magnetic fine particle-dispersed resin carrier comprising at least inorganic compound particles and a carrier binder resin, the toner has a weight-average particle size of 3 to 10 μm and contains 1 to 40 wt. % of solid wax,
• wherein the carrier binder resin comprises a thermosetting resin,
• wherein the inorganic compound particles comprise magnetite particles containing at least one additive element selected from the group consisting of magnesium, silicon, manganese and phosphorous, and
• wherein the magnetite particles contain said at least one additive element in a total amount of 0.03-5.0 wt. % based on Fe.

A replenishing developer, comprising:

• 1 wt. part of a carrier and 2-50 wt. parts of a toner,
• wherein the carrier is a magnetic fine particle-dispersed resin carrier comprising at least inorganic compound particles and a carrier binder resin, the toner has a weight-average particle size of 3 to 10 μm and contains 1 to 40 wt. % of solid wax,
• wherein the carrier has a magnetization (δ1000) as measured at a magnetic field of 1000/4π kA/m of 15-65 Am2/kg (emu/g), and a residual magnetization (δr) of 0.1-20 Am2/kg,
• wherein the inorganic compound particles comprise magnetite particles containing at least one additive element selected from the group consisting of magnesium, silicon, manganese and phosphorous, and
• wherein the magnetite particles contain said at least one additive element in a total amount of 0.03-5.0 wt. % based on Fe.

A developing method, comprising:

• developing an electrostatic latent image on an image-bearing member with a two-component developer comprising a toner and a carrier stored in a developer vessel, while periodically supplying a replenishing developer to the developer vessel,
• wherein the replenishing developer comprises 1 wt. part of a carrier and 2-50 wt parts of a toner, wherein the carrier is a magnetic fine particle-dispersed resin carrier comprising at least inorganic compound particles and a carrier binder resin, the toner has a weight-average particle size of 3 to 10 μm and contains 1 to 40 wt. % of solid wax,
• wherein the carrier has a magnetization (δ1000) as measured at a magnetic field of 1000/4π kA/m of 15-65 Am2/kg (emu/g), and a residual magnetization (δr) of 0.1-20 Am2/kg,
• wherein the inorganic compound particles comprise magnetite particles containing at least one additive element selected from the group consisting of magnesium, silicon, manganese and phosphorous, and
• wherein the magnetite particles contain said at least one additive element in a total amount of 0.03-5.0 wt. % based on Fe.