Why doesn Mandrake 9.0 print to the Z35?
The Lexmark driver is made for LPD and LPRng. Red Hat 7.3 uses LPRng as default spooler, and Mandrake 9.0 uses CUPS. You can switch to LPRng by doing urpmi LPRng on the command line (as root) and then starting printerdrake, clicking Expert Mode, and then Change printing system. Choose LPRng. Some additional packages will be installed. Say No if you are asked to transfer your Z35. Then re-install the Lexmark driver and you should be able to print.