| abstract |
A magnetic single component toner for electrostatic latent image development, which is used in a magnetic single component toner projection development method using an a-Si photosensitive member having a film thickness of no more than 30 μm, and a cleaning blade as a cleaning means for removing toner from the surface of this photosensitive member, so as to develop an electrostatic latent image formed on the photosensitive member, with a developing agent bearing member, comprises strontium titanate which has been rendered hydrophobic and has a specific surface area of 8.0 to 30 m 2 /g, and which is added as an external additive at a ratio of 0.3 to 5.0 parts by mass with respect to 100 parts by mass of the toner particle. |