Are you sure there aren't two serial ports for this BT connection, one to receive (read)- also called 'outgoing', and another to send (write) - also called 'incomming'? In this case, you'd need two separate instances of the serial port object, one to send and the other to receive. Note, I haven't used your printer, so I'm speculating (often BT devices assign a single SPP port), and if this isn't the case, I don't have another suggestion. Dick -- Richard Grier, MVP Hard & Software Author of Visual Basic Programmer's Guide to Serial Communications, Fourth Edition, ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March 2006. See www.hardandsoftware.net for details and contact information.