Image forming system

An image forming system comprising:

• a sheet transport apparatus including a transport section capable of transporting a sheet in a predetermined sheet transport direction;
• and
• an image forming apparatus including an image forming section capable of forming an image on the sheet acquired from the sheet transport apparatus,
• wherein the sheet transport apparatus includes a switch member disposed on a downstream side of the transport section in the sheet transport direction to be switched between a first position for guiding the sheet transported by the transport section to the image forming apparatus, and a second position for guiding the sheet transported by the transport section downward, and a storage tray disposed below the switch member predetermined space apart to be able to store the sheet guided to below the switch member by the switch member positioned in the second position, and
• the image forming apparatus includes a side wall member that is a part of a member defining the predetermined space.