A sheet conveying apparatus is provided which includes a first rotary
member; a second rotary member configured to convey a sheet with the
first rotary member and which is separable from and in contact with the
first rotary member; a sheet detecting member which is movable by being
pressed by the sheet; and a detecting sensor configured to detect a
presence or absence of the sheet based on a position of the member. The
sheet detecting member is movable between a detecting position for
detecting a presence or absence of the sheet by the detecting sensor in
which the sheet detecting member can be pressed by the sheet and a
retreat position in which the sheet detecting member is retreated from a
sheet conveyed, and the sheet detecting member is moved to the detecting
position from the retract position in association with a movement of the
second rotary member away from the first rotary member.