In a print group for an inkjet printing apparatus a printing unit is provided comprising a housing with print bars having print heads. A transport unit is provided for a printing substrate. Drive and guidance units are arranged per print bar which move the print bars independently of one another in a perpendicular direction from a printing position into a transport position and back. In a park unit racks are provided for protective cap bars. A protective cap bar is provided per print bar which when coupled to said print bar seals it. Print bars in an operating position not provided for printing are in the transport position and are coupled with associated protective cap bars. Print bars in said operating position for printing are in the printing position and their associated protective cap bars are arranged in the park unit racks.