Patent ID: 7913996

Claim:
A sheet feeding apparatus comprising: a sheet stacking portion detachably mounted on a main body of the apparatus; a feed roller configured to feed a sheet stacked on said sheet stacking portion; a holding portion provided in the main body of the apparatus, having said feed roller rotatably supported on said holding portion, and holding said feed roller, which is detachable from said holding portion by a slide in an axial direction of said feed roller; and a lock mechanism which restricts a detachment of said feed roller from said holding portion, and has a locking lever pivotally attached to said holding portion, the locking lever movable to a lock position for restricting a slide to detachment of said feed roller in the axial direction, and to a lock releasing position for permitting the slide of said feed roller, wherein said feed roller is provided with a first roller shaft and a second roller shaft, the second roller shaft supported by said holding portion, and said feed roller is provided with a roller body portion movable along said first roller shaft and having said second roller shaft formed integrally with said roller body portion, wherein said feed roller is detachable from said holding portion when said roller body portion is moved along said first roller shaft to a position in which said second roller shaft is detached from said holding portion, and wherein if said locking lever is in the lock releasing position when said sheet stacking portion is mounted to the main body of the apparatus from outside of the main body, said locking lever is pressed by said sheet stacking portion and moved to the lock position in association with a mounting operation of said sheet stacking portion.