Developing device having seal members

摘要

A developing device (43) is provided with a case main body (43a), a developing roller (50) capable of rotating and supporting developer housed in the case main body (43a), an adjustment member (47) extending along a rotation axis direction of the developing roller (50), and a side seal member (150, 152). The side seal member (150, 152) comprises a first seal member (150) mounted on the case main body (43a), and a second seal member (152) mounted on the adjustment member (47). The first seal member (150) and the second seal member (152) are configured separately and make contact with one another.