76, 77, 78 Fuser / Machine Errors – Brother MFC 7420, 7820 DCP 7010, 7020

 

76, 77, 78   Fuser / Machine Errors – Brother MFC 7420, 7820 DCP 7010, 7020

The Brother  DCP 7010, 7020 MFC 7420, 7820’s are by far some of the best machines out there in today’s market. With their inexpensive cost, wide variety of features, and low-cost to maintain they are an obvious choice for any small to midsize business looking for a long-lasting durable machine. However, they can be prone to 76, 77, 78   Fuser  / machine error. In this article, I will discuss why they get the 76, 77, 78   Fuser / machine error and how to possibly clear the message to avoid unwanted service expenses.

Situation with the Brother DCP 7010, 7020 MFC 7420, 7820 76, 77, 78   Fuser / Machine Error

One day you come into your office or go to check your faxes and you notice your  DCP or MFC  has one of four machine  error codes: 76, 77, 78, 79. All these  errors are fuser  related errors. 76 means an overheat issue, 77 is a general fuser error, 78 is an under  heat error, and 79 is a defective thermistor error.   At this point, you press a few buttons and eventually turn it off and back on only to be faced with the same error. If you call Brother Tech Support they will tell you to turn the machine off and let it set for ten minutes. Some machine service manuals even says to let it sit on for ten minutes and the machine error should clear itself. I think I’ve only seen one machine reset itself. All other I’ve had to actually go into service mode and clear the 76, 77, 78   Fuser / machine error myself.

Majority of the time, the 76, 77, 78   Fuser  / Machine Error codes  results in a sudden power outage where the power briefly turns off and on within a few seconds. You know when the lights flicker and your like what just happened. Usually during storms or when utility work is being done near by. I have a few companies that this happens a few times a year because of frequent short power outages at their locations.

Why Brother DCP 7010, 7020, MFC 7420, 7820 76, 77, and 78 Fuser / machine Error Codes  Happen

Brothers, like a lot of copiers, when they have fuser  errors the machine needs to be put into a service mode to reset the code. People ask why? Well, if you run into a overheat issue if you turn the machine back on right after, it starts to heat up again which could result in melting the fuser  pressure roller or in a worse case scenario start a fire. So, manufactures decided rather than have a law suit on their hands just to disable the machine until a repair man can come on site and diagnose the problem to avoid further damage to the machine. I have seen melted fuser  pressure rollers, broken gears, and Brother did have an early mode printer that was known to have the fuser  catch on fire so it’s something to take serious. Most of these recent errors though are a result of the machine being suddenly reset and it doesn’t properly power up. During the power up sequence the fuser  lamp turns on an after a few seconds the thermistors read the correct temperature and the machine cycles to a ready state. When a machine resets all the sudden it skips a few steps and immediately checks the temperature which is usually wrong because it hasn’t had a chance to warm up so it throws a machine  error code leaving you without a fax or printer until its reset.

How To Fix Brother DCP 7010, 7020 MFC 7420, 7820 76, 77, and 78 Machine/Fuser Errors

First, since some of these can result in over heat issues I always recommend letting it sit unplugged for 1/2 hour. Hey, you might get lucky and plug it back in and it might start-up properly. Brother and other manufactures recommend this as a first action to take whenever you get a fuser error. This should allow the machines to sit long enough that it will carry out its regular power up cycle if it is a recoverable error. If not then we will have to put it in Maintenance Mode to attempt to manually clear the 76, 77, 78   Fuser / machine error . To do this on most Brother Faxes, and MFC’s you need to press ( Menu, *, 2, 8, 6 ,4 ). DCP’s Press (Menu, Start, then the ^ button four times)  Sounds easy right? It’s not. The button sequence has to be done within a few seconds or it will not work. I usually tell customers to get a beat in their head or say the sequence over and over in their head then press the buttons. It might take you a few times. The main thing a can say here is not to read the screen. I’ll repeat, Do not read the screen just press the buttons. If done correctly the lights on the display will flash and the display will read MAINTENANCE. To reset the machine at this point just press 9,9 and the machine will exit maintenance mode and start its normal power up sequence. 99% of the time that’s all that needs done to reset the 76, 77, 78   Fuser / machine error codes  . DCP’s you have to scroll the ^ or down buttons  to get to the 99 reset. If it doesn’t fix your 76, 77, 78   Fuser / machine error you could try a 0,0 or a 0,1 in maintenance mode but these do restore settings so you might need to reconfigure your header and other settings. If that still doesn’t work then it’s probably time to call in a service technician to check the fuser out and possibly the power supply. Maintenance mode is not to be taken lightly. This isn’t a new toy on your fax machine. Certain modes can render your machine useless so only use it when necessary.

If you have any questions just leave a comment below and I will further try to help you resolve your issue. On newer models they have life counters for parts like the fuser. Replace fuser  messages don’t always mean you have a fuser  issue, just that the fuser has reached its 100,000 PM cycle and needs replaced. Maybe, in a future article I will discuss this topic and explain in detail what actions need to take place. For now, hopefully that has helped you solve your immediate problem of the 76, 77, 78 Fuser / Machine Errors – Brother DCP 7010, 7020 MFC 7420, 7820

For More information involving Printer Repair and some articles I have written check out: http://blog.marketpoint.com/

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