| 摘要 |
An electrostatic latent image developer is produced by adding 1 part by weight or more of an agent improving transfer efficiency, the agent having an average particle size of 0.1 to 3 mu m, together with 0.3 to 5 parts by weight of a hydrophobic silica fine powder of a BET specific surface area of 50 to 300 m2/g to 100 parts by weight of a toner. The electrostatic latent image developer of the invention improves the transfer efficiency from a photosensitive material onto a recording medium while the flowability of the toner can be retained, whereby any cleaning mechanism in a developer system can be omitted.
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