MF Digital Spectrum 2 Thermal (Rev: 03/05/01) - Manual (Page 47)

Spectrum2 Printer Operator’s Guide
Document Revision: 100102
46
Color Graphics Most clip art in Windows Meta File format (WMF) provide good results.
JPEG, BMP, and TIFF files may use dithering of CMY colors; you may
need to use a Photo or Paint program to adjust color density to achieve
best results.
Full disc single color graphics and reversed out graphics are not
recommended for thermal transfer CD printers.