First try to download a free user manual here http://www.radioshack.com/ProdSupport/DocumentDetail/DocumentDetailIndex.asp?P=support_accessories&D=2513&T=htm

 

To obtain a manual for a compaq printer you need to ring compaq on this number:-

0845 2704000

Alternatively you can email them via there website feedback pages

Please note compaq have taken over digital and digital manuals can now be obtained through the same telephone number.