Sheet processing apparatus

A sheet processing apparatus, comprising:

• transport rollers that transport sheets supplied from outside of the sheet processing apparatus along a transport path;
• a first tray including first and second tray members both configured to move toward each other to temporarily support the sheets transported from the transport path and move away from each other to cause the supported sheets to drop therebetween;
• a second tray that is provided below the first tray and supports the sheets that are dropped from the first tray, on a receiving surface thereof;
• a discharge member configured to discharge the sheets from the second tray;
• a guide including a support surface for supporting the sheets and a linkage configured to move the support surface between a first position at which the support surface does not protrude from the receiving surface and a second position at which the support surface protrudes from the receiving surface so that the support surface supports the sheets traveling from the transport path toward the discharge member;
• and
• a bundle discharge member that discharges a bundle of the sheets supported by the second tray, wherein
• the linkage moves the support surface between the first and second positions in conjunction with a movement of the bundle discharge member to change a transport angle of the sheets transported from the transport path toward the discharge member without passing through the first tray.