| abstract |
A reduction in cleaning performance is suppressed even after repeated image formation. In an infrared absorption spectrum analysis of toner particles, the toner particles contain an amorphous polyester resin, the Mw of the tetrahydrofuran soluble part of the toner particles is 25000 or more and 60000 or less, and the Mw / Mn is 5 or more and 10 or less. , the absorbance of the absorbance / wavelength 720 cm -1 wavelength 1500 cm -1 is 0.6 or less, the toner particles and the external additive absorbance absorbance / wavelength 720 cm -1 wavelength 820 cm -1 is 0.4 or less The image from the cleaning blade before and after the sliding test in which the developing means 18 containing the developer containing the toner and the image holding body are rotationally driven and slid while the cleaning blade 220 is in contact with the image holding body. An image forming apparatus 10 comprising: a cleaning unit 22 having a difference in load applied to the holding body of 1.5 gf / mm or less. [Selection] Figure 1 |