Hello Kai,
I assume the first screenshot is meant to show that although transaction SP01 shows that the 2 pages have been printed correctly, not all of them have been printed.
Do I see it correctly? If yes: is it possible that this spool consists of 2 "parts"?
The reason I am asking is that a physical printer usually can not handle a PDF with several "parts".
Chances are that printing from Adobe Reader will solve the problem to some extent, but it is not a long-term solution.
Instead, the external tool SAPPDFPrint can be used. This tool converts the ADS spools from transaction SP01 into a format which should be "understood" by the printer.
Based on your second screenshot I assume frontend printing (with Access Method G) is used.
In this case, follow the description of SAP Note #1444342 - "Device type-independent printing of ADS forms", point "For front-end printing (access type G)" on how to install and use SAPPDFPrint for frontend printing.
Also check SAP KBA #2289706 - "Compatibility of SAPPDFPRINT patches to SAPGUI/SAPSprint", which shows the compatible versions.
Best regards,
Laszlo