| abstract |
PROBLEM TO BE SOLVED: To provide a high level of development ghost prevention property and transfer characteristic which are useful as a developer used in an electrophotographic apparatus, etc., in any of a high-temperature high-humidity environment and a low-temperature low-humidity environment. Provided is a magnetic one-component developer capable of obtaining a high level of image quality without causing a development ghost, a decrease in image density, an uneven image density, etc. even when used below. SOLUTION: This is a magnetic one-component developer comprising toner particles containing a binder resin and a magnetic material and an external additive, wherein the external additive has a volume resistivity of 10 2 to 10 6 Ω · cm. A magnetic one-component developer comprising: |