Image Forming Apparatus

摘要

An image forming apparatus includes a main casing, an opening-closing member configured to open and close an opening on a side of the main casing and to move between an open position and a closed position, a belt unit configured to move between a first position and a second position, a drum unit configured to move between a third position and a fourth position, a developing device unit configured to move in an arrangement direction of developing rollers, and an interlock mechanism configured such that in response to a movement of the opening-closing member from the closed position to the open position, the belt unit moves from the first position to the second position and the drum unit moves from the third position to the fourth position.

主权项

1. An image forming apparatus comprising:
a main casing; a drum frame detachably attached to the main casing and including a photosensitive drum; a developing device supporting structure having a groove at an inner surface thereof; and a developing device detachably attached to the main casing and including a developing roller and a protruding portion, wherein the developing device supporting structure is configured to support the developing device such that the protruding portion of the developing device is inserted into the groove of the developing device supporting structure and the developing device is guided between a first position close to the photosensitive drum and a second position far from the photosensitive drum, and wherein when the developing device is in the first position, the developing device is disposed below the photosensitive drum and is swingable with respect to the photosensitive drum.