Q: When I print, I get a stair step effect.
A: The reason for this is your Host (e.g. a UNIX system) uses LF as the end of line character and the printer is expecting CR/LF.
For RPM 5.1: add the "LF to CRLF" transform to the setup for this queue. Typically it would go at the beginning of the transform list, or just following a code page (data format translation) step.