| 摘要 |
An image forming method which includes following steps: a. forming on a photosensitive member an electrostatic latent image having at least three different levels of potentials, i.e., having a first latent image and a second latent image; b. developing the first and second latent images with a magnetic developer in the form of a mixture of at least three components, i.e., a magnetic carrier, a first toner triboelectrically chargeable to a specific polarity by contact with the magnetic carrier, and a second toner triboelectrically chargeable by contact with the first toner to a polarity opposite to the triboelectric charge polarity of the first toner but substantially not triboelectrically chargeable by contact with the magnetic carrier, by selectively depositing the first and second toners on the latent images; and c. transferring the resulting toner image onto the surface of a copy material.
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