RJ-2140 FAQs & Troubleshooting RJ-2140 Not your product? Sort by Updated Date Popularity 3 Results 1. 10/22/2020 The WLAN icon appears on the LCD, but the printer cannot communicate with other devices via a wireless LAN. 2. 01/22/2019 What do the indicator lights mean? 3. 09/30/2016 The LED indicator or the LCD is not lit. Error Messages/LED Indications FAQs & Troubleshooting