MW-140BT FAQs & Troubleshooting MW-140BT Not your product? Sort by Updated Date Popularity 2 Results 1. 04/21/2020 The Bluetooth® installation asks me for a PIN (or Pass Key). Where can I find this information? 2. 10/16/2019 Although the print command was sent to the MPrint printer, the printer does not print. Connecting to a Mobile Device FAQs & Troubleshooting