How to change language of Brother IntelliFAX 2840/ programming maintenance mode 

Your welcome

Thank you

Thanks boss

Thank you

Yes u can set in french language

I think it’s the same programing 2840 and 2940 just follow what i did in the video, you want to change the language right?

@@migojertech9134 No, I have an EF error. "Print Unable EF Turn the power off and then back on again." The manual service is written on this issue: "Reset the irregular power supply detection counter". But I can't enter the maintenance mode. But what is even more strange - this is that sometimes the fax is turned on without an error, and it works fine. But after a few minutes this fault appears again. I checked all capacitors on the motherboard and on the PSU board. All capacitors have low ESR. Now I am going to check the thyristor of the heater. I have no idea, except for EEPROM malfunction.

I took the power supply from another such fax. The error disappeared forever. It remains now to find a malfunction in the power supply. Capacitors are good, so I need to check all other components

Suddenly I found a malfunction. This is a relay on the power supply board. When the voltage is applied (24V) to the relay - its contacts open

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-bFXkliVVHMc.html Under this time, you can see a faulty relay and how I replaced it, drilled another hole and expanding the hole of the diode.