An image forming apparatus includes a rotatable brush in contact with an
image bearing member at a position downstream of transfer means and
upstream of charging means in a rotational direction of the image bearing
member. The rotational brush is configured to supply electrical charge to
residual toner that remains on the image bearing member. The image
forming apparatus executes a mode for removing toner particles attached
to the brush by setting a peripheral speed of the brush to be lower than
that of the image bearing member during an image forming time period and
setting the peripheral speed of the brush to be higher than that of the
image bearing member during at least part of a non-image forming time
period.