Image forming apparatus

An image forming apparatus comprising:

• an image forming unit configured to form an image on a sheet;
• a discharging portion configured to discharge the sheet on which the image has been formed to an outside of the image forming apparatus;
• a supporting portion configured to support the sheet discharged by the discharging portion;
• an image reading portion configured to read, at a reading position, the image formed on the sheet;
• a switching portion configured to switch between a first position to cause the sheet discharged by the discharging portion to be conveyed to the supporting portion and a second position to cause the sheet discharged by the discharging portion to be conveyed toward the image reading portion configured to read the image;
• a conveyance portion configured to convey the sheet;
• a control portion configured to control switching of the switching portion;
• and
• a read sheet supporting portion configured to support the sheet whose image has been read by the image reading portion,
• wherein the sheet conveyed toward the image reading portion due to the switching portion is conveyed to the reading position after conveyance of the sheet by the discharging portion is finished;
• and
• wherein the control portion is configured to cause the sheet to be conveyed at a first conveyance speed in a period before a trailing end of the sheet is released from the discharging portion in a conveyance direction of the sheet and to cause the sheet to be conveyed at a second conveyance speed different from the first conveyance speed in a period after the trailing end of the sheet is released from the discharging portion in the conveyance direction of the sheet.