An image forming method, a photoreceptor used for the apparatus, and an image forming unit

摘要

An electrophotographic image forming method is disclosed in which toner has a number ratio of toner particles having a shape coefficient of 1.2 to 1.6 being at least 65 percent, a variation coefficient of the shape coefficient of 4 to 16 %, and a number variation coefficient in the toner number particle size distribution of 8 to 27 percent, and charge generation material used in the photoreceptor contains a mixture compound represented by Formula 1 in which n has a range of distribution and (x + y) is not more than 99% when x represents the ratio of a component having the largest content and y represents the ratio of a component having the second content, <MathDetails id="matha01"><MathText><![CDATA[ <math display="block"><mi>Formula</mi><mspace width="1em" /><mrow><mo>(</mo><mn>1</mn><mo>)</mo><mo>:</mo><mspace width="1em" /><mi mathvariant="normal">X</mi><mo>-</mo><msub><mfenced separators=""><mi>CTL</mi><mo>-</mo><mi>group</mi></mfenced><mi mathvariant="normal">n</mi></msub><mo>-</mo><mi mathvariant="normal">Y</mi></mrow></math><img id="ia01" file="imga0001.tif" wi="85" he="7" img-content="math" img-format="tif" /> ]]></MathText></MathDetails>
CTM-group is a charge transfer group; X and Y are each a hydrogen atom, a halogen atom or a mono-valent organic group; and n is an integer of from 0 to 10.