| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a toner not causing retransfer under various conditions of electric current for transfer and capable of giving a high quality image. SOLUTION: Fine particles of a compd. having a plate shape are added to toner matrix particles to obtain the objective toner. This toner has one or more heat absorption peaks by differential thermal analysis in a region of <=120 deg.C. The shape factory SF1 of the toner particles measured with an image analyzing device is >110 to 180, the shape factory SF2 is >110 to 140 and the ratio (B/A) of value B given by subtracting 100 from the SF2 to value A given by subtracting 100 from the SF1 is <=1.0.</p> |
