| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high-density image with the small consumption of toner by using flat toner as one-component developer. SOLUTION: Development is performed in a state where an additive adheres to toner particles and the electrification amount Q' (μC/g) of the toner particles to which the additive adheres is set to |Q'|>|Q| with respect to the electrification amount Q (μC/g) of the toner particles having no additive. The toner particles adhere with their flat part. |
