Question about Brother MFC 8500 All-In-One Laser Printer

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My screen is saying error 77? What does that mean?

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Try to update the firmwaRE, OR ELSE have to replace mother board

Posted on Dec 11, 2009

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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What does a 77 error code on a Bernina sewing machine mean?


Machine error 77 means you hade either a Machine error 76 or Machine error 78 and turned the machine off. Sometimes the machines will give a false code and can be reset

that answer has been posted vk88

Mar 28, 2012 | Sewing Machines

1 Answer

Machine is on and showing "error message #77 and says to unplug machine and call dealer. What is error 77?


Error #77 refers to a mechanical problem, but I'd say about 7 times out of 10 it's a mistake. Fortunately, Brother fax machines have override commands :). Try this:

1. Turn the power off and unplug the power source.
2. Press and hold the menu button and plug in the power source (don't let go of the menu button!).
3. Hold the menu button for 5 seconds after plugging in the power source.
4. Release the menu button and press "91"

5. If the screen still shows the error code, press "99".

Hopefully this will override the error and you can get back to work :) .

Hope this helps! Good luck!

Aug 30, 2010 | Brother IntelliFAX 2800 Laser Fax

2 Answers

Message on machine states error 77, unplug and call brother?


Error 77 basically means- Heater thermistor short circuit. However, the message is sometimes incorrectly shown. You can try this- power off the machine, take out the cartridge, close the door and power up. The machine should notice either the toner or the front door is not in place. Now open the door and place the toner. This might solve the problem. You can also try to soft reset the printer. If none of these works, you might have to change the thermistor.

Apr 06, 2010 | Brother MFC 9700 All-In-One Laser Printer

1 Answer

Error 77 pops up, then it says to unplug and call brother


You probably have a bad FUSER unit. Call a Brother Dealer for service.

Jan 22, 2009 | Brother IntelliFAX 2800 Laser Fax

2 Answers

Point setting on 77 ford


The gap on the points to your distributor is .017 or the thickness of a match book.

Jun 29, 2008 | 1982 Ford F 250

1 Answer

Brother MFC-8500 Fax Error 77


Error 77 is a fuser error. If resetting the power doesn't work, then the fuser is bad and it will need replacement. Repair should cost around $200-250.

Jun 13, 2008 | Brother MFC 8500 All-In-One Laser Printer

1 Answer

Error 77


related to a fuser error. Unit is detecting a too high or low heat internally. Try turning off for a few minutes. If error returns check voltage level at outlet or try a different outlet. Maybe too many items plugged in same outlet. If error returns, may need new fuser or thermistor.

I’m happy to help further over the phone at https://www.6ya.com/expert/jayw_0e86fb055a7b73de

May 09, 2008 | Brother IntelliFAX 4100 Laser Fax

1 Answer

Error code F-77-2


I cna't help unless you provide the make and model of the machine. From the looks of the number it could be a Konica but I need the model to tell you wat it means. Aloha,  Bill Monroe 

Nov 27, 2007 | Office Equipment & Supplies

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