Hi Solen,
As per your problem description, I think there is some problem with Basis Configuration for the fonts and all that you have used in your output, in your development system.
Would request you to take help from Basis colleague for your team, he will be able to get the contrast between Dev. and Prod. servers.
Print preview is probably working fine, since print preview can take the relevant Styles and Font from Windows Environment but printing the output will not take it from Windows Environment.
Also, can you check the print output by providing your Spool No. in Report RSTXPDFT4.
Thanking You All.