Why do I get PostScriptClass: Waiting for device trying to print 1200×600?
Change the printing language to both PCL and PostScript. This can be done from the front panel. See Chapter 4-11 of the HL-166e User’s Manual, MODE Switch Settings in BR-Script 2 Mode BR-Script is Brother’s implementation of PostScript Level 2. It would be better to use a Brother PPD file, available from the Windows/Mac driver CD.