Can't install specific RPM packages - no checksum fail

I want to install some programs and drivers for my printer and I have the corresponding RPMs. But when I try to install them, I get an error, no checksums.

How can I work around this or how can I fix it?

Thank you for your help

the man rpm-common page lists the following - give them a whirl. Untried but some combination may well work for you:

       --nodigest
           Don't verify package or header digests when reading.

       --nohdrchk
           Don't verify database header(s) when retrieved.

       --nosignature
           Don't verify package or header signatures when reading.

I’ve used sudo rpm -ivh --nodigest *.rpm and it worked.

Thank you very much!