Sheet conveying apparatus

A sheet conveying apparatus, comprising:

• feeding means for feeding a sheet;
• a rotary member for conveying the sheet fed by said feeding means;
• pressing means for nipping the sheet by cooperating with said rotary member;
• and
• controlling means for controlling rotation of said rotary member in a normal direction or a reverse direction, wherein said rotary member is rotated in the normal direction to convey the sheet fed by said feeding means in a forward direction by nipping the sheet in cooperation with said pressing member, then said rotary member is rotated in the reverse direction to convey the sheet in a backward direction until a leading end of the sheet nipped by a nipping portion between said rotary member and said pressing means is released to thereby cause the sheet to bend between the nipping portion and said feeding means with the leading of sheet being abutted against the nipping portion, and then said rotary member is rotated in the normal direction to convey the sheet in the forward direction, said controlling means controlling said rotary member in correspondence with a first mode for a first sheet thickness and a second mode for a second sheet thickness thicker than the first sheet thickness, so that in the first mode said rotary member starts conveyance of the sheet in the reverse direction after conveying the sheet by a first predetermined amount, and in the second mode said rotary member starts conveyance of the sheet in the reverse direction after conveying the sheet by a second predetermined amount larger than the first predetermined amount.