There are many great vendors for Media Packs (paper and ribbon) for your DNP DS620A or DS40 Printer. Pick the best supplier for either your region or needs.
Note: The Media Packs are specific to the printer you have. If you are not sure, inspect the printer you have (the model number is usually in the front and on the back of the printer). We have used both the DS40 and the DS620 with our systems.
These are our best recommendations:
West Coast
Foto Club Inc. - 888-921-3686 - Ask for Ruben
Central
Imaging Spectrum - 1-800-342-9294 and speak with Ronnie.
East Coast
These online vendors are fantastic too
Canadians, please check out these vendors:
Technicare (You need to have an account with them)