Answer:
If you want to print graphics in a report, the corresponding subitem must be active in the selection of the printout report in the "Global Selection" tab; see Image 01. This means that the tables are also displayed. If you only want to print images in the printout report, it is necessary to deactivate the tables in the tabs; see Image 02.
Afterwards, it is also possible to save report templates so that they can be used again in other models. New templates can be defined in the printout report menu:
Settings → Printout Report Template → New or New from Current Printout Report, Image 03.