Charge eliminating apparatus and image forming system

A charge eliminating apparatus comprising:

• a charge eliminating member configured to come into contact with a sheet conveyed and eliminate charge of the sheet by voltage applied to the charge eliminating member;
• a moving unit configured to move the charge eliminating member to a contact position in which the charge eliminating member is in contact with the sheet and to a retracting position in which the charge eliminating member is separated from the sheet;
• and
• a controller configured to execute
• a first processing in which charge of a sheet is eliminated by applying voltage to the charge eliminating member in a state where the charge eliminating member is positioned at the contact position, and
• a second processing in which charge of a sheet is not eliminated while voltage is not applied to the charge eliminating member in a state where the charge eliminating member is positioned at the contact position,
• wherein, in a mixed job in which a first type of sheet and a second type of sheet that differs from the first type of sheet are conveyed, the controller is configured to execute the first processing to the first type of sheet and execute the second processing to the second type of sheet, and
• wherein, in a case where a plurality of the second type of sheet that exceeds a predetermined number of sheets in number is conveyed successively to the charge eliminating member in the mixed job, the controller is configured to execute a third processing in which charge of the second type of sheet is not eliminated by moving the charge eliminating member to the retracting position by the moving unit.