Hi. I had the same problem and to fix it you need to take printers right-side cover off. Underneath you'll find a Power Supply Board - hidden under metal cover. Take it out and disconnect two cables from it. Now, I had to replace an fuse 125V 4A and varistor E241AD 83P on the Power Supply Board in mine HL-2140. It works fine now. Note: I could not find the exact replacements in electronic store so I used: - fuse: 250V 4A - varistor: FNR 10K241 (241 is the important number) Hope it helps.
Same problem on my MFC-7840W (power surge). Thanks!
(Power Supply board is MPW 3001, fuse is same, varistor is E241AD 81P)
Where does one get a E241AD varistor? My was blown in the same way...
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And now it accepts 220V?? (seen you use a 250V fuse..)
hi. I had the same problem and to fix it you need to take printers right-side cover off. Underneath you'll find a Power Supply Board - hidden under metal cover. Take it out and disconnect two cables from it. Now, I had to replace an fuse 125V 4A and varistor E241AD 83P on the Power Supply Board in mine HL-2140. It works fine now.
Note: I could not find the exact replacements in electronic store so I used:
- fuse: 250V 4A
- varistor: FNR 10K241 (241 is the important number)
Hope it helps.
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