Image forming apparatus having three input units for instructions

An image forming apparatus for forming an image on sheets, comprising:

• a storage unit for storing the number of jobs in which a discharge position of the sheets is switched;
• a sheet discharge tray for stacking the sheets;
• a switching unit for switching first and second discharge positions of the sheets on the discharge tray;
• a control unit for controlling the switching unit to switch alternately the discharge positions of the sheets per the number of jobs, the number of jobs being stored in the storage unit, to discharge the sheets;
• a first input unit for inputting an instruction to switch the discharge position of the sheets per the number of jobs;
• a second input unit for inputting the number of jobs;
• and
• a third input unit for inputting an instruction as to whether or not to switch the discharge position of the sheets in each job,
• wherein the storage unit stores the number of jobs, which is inputted from the second input unit, and the control unit controls the switching unit to switch alternately the discharge positions of the sheets per the number of jobs, the number of jobs being stored in the storage unit, to discharge the sheets when the instruction to switch the discharge position of the sheets per the number of jobs is inputted by the first input unit, and
• wherein the control unit controls the switching unit to switch alternately the discharge positions of the sheets per the number of jobs excluding the job in which the instruction to switch the discharge position of the sheets in each job is inputted by the third input unit, to discharge the sheets.