That CPCL looks fine; In fact, it looks like you took it directly from the CPCL manual: https://support.zebra.com/cpws/docs/comtec/PROMAN-CPCL_RevY.pdf . You will want to make sure that the font that you are referencing is on the printer. You can send the following command to see all files currently on the printer. If you don't see PLL_LAT listed, then it is likely that the font is not on the printer:
! U1 getvar "file.dir"
- Notice that you must include a new line after this command, and that it is case-sensitive
This article explains how you can download additional fonts to the printer: https://km.zebra.com/kb/index?page=answeropen&type=open&searchid=1362663129066&answerid=16777222&iqaction=5&url=https%3A%2F%2Fkm.zebra.com%2Fkb%2Findex%3Fpage%3Dcontent%26id%3DSO7889%26actp%3Dsearch%26viewlocale%3Den_US&highlightinfo=6292308,67,81#