Equipment used:

EP10 (7515) WEH6.5 Professional OS version 3.0.21417.0 with Psion Software Advantage 3.0.21959.0

PTX Print MLP3040 portable Bluetooth printer

General Steps:

Enable power for Bluetooth in Start> Settings> Connections> Bluetooth> <Mode> tab

In <Device> tab, scan for the Bluetooth enabled print device

Tap and hold to show the context menu then click on Pair

Enter a passcode to establish a secure connection. To proceed without authentication, press [Next]

Enable [ /Serial Port (click on the box)

Set Mode to Serial and select desired virtual COM port (example COM8:) then hit [Next] 

Hit [OK] to finish setup

To verify paired Bluetooth printer, view Paired tab

For Windows CE5.0 - Pairing Bluetooth Printer click here