GS6623 White (three layers), GS6622 White (two layers), GS6644 Gray (four layers) [A4 paper can be placed], [GS6643 Gray (three layers) [A4 paper can be placed], GS6642 Gray (two layers) [A4 paper can be placed], GS6623 Gray (three layers), GS6622 Gray (two layers), GS6642 White (two layers) [A4 paper can be placed], GS6643 White (three layers) [A4 paper can be placed], GS6644 White (four layers) [A4 paper can be placed], GS6633 Gray (three layers), GS6633 White (three layers), GS6634 Gray (four layers), GS6634 White (four layers), GS6624 Gray (four layers), GS6624 White (four layers), GS6632 Gray (two layers), GS6632 White (two layers)