Image forming apparatus and drawer member

A drawer member usable with a main assembly of a image forming apparatus, the main assembly including an opening, an optical unit configured to project light onto an image bearing member for carrying a toner image, and a shutter member movable between a closing position for closing an optical path for the light to be projected onto the image bearing member and an open position for opening the optical path,

• wherein a drawer member is movable relative to said main assembly while supporting an image forming portion including at least an image bearing member, between an inside position which is inside said main assembly and in which a image forming operation is enabled and an outside position to which said drawer member is drawn out of said main assembly through said opening and in which a cartridge including at least a part of said image forming portion is mountable to and dismountable from said drawer member, said drawer member comprising:
• an engaging portion engageable with a portion-to-be-engaged provided on a side of said shutter member,
• wherein said engaging portion moves said shutter member from the open position to the closing position in a process of movement of said drawer member from the inside position to the outside position and moves said shutter member from the closing position to the open position in a process of movement of said drawer member from the outside position to the inside position.