Question about Brother MFC-5840CN All-In-One InkJet Printer

1 Answer

Won't turn on.

Hi. My printer was working fine. I turned it off for about 10 days. Now I can't turn it back on. I've checked all cables, outlets, etc. I've pressed the on button for up to 15 seconds. Nothing works. It just won't turn on. Please help!

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  • Master
  • 832 Answers

Main board defective. needs replacement. If you are out of warranty you ll be better off to buy a new one (spare part is very expensive!)

Posted on Mar 03, 2008

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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My printer won't turn on


Hi

Either the power source has issues or the power jack on printer has gone bad or printer's main board has issues.
Verify that the electrical connections and outlet are functioning:-

Unplug the power cable or power module from the electrical outlet.Unplug the power cable or power module cable from any power strips or surge suppressors.If the product uses a power module with a detachable power cord, unplug the cord from the power module, and then plug it back into the power module.Unplug the power cable or power module from the back of the product.Wait at least 30 seconds, and then plug in the power cable or power module into the electrical outlet.Plug the power cable or power module back into the product.Turn the product on.
If this doesnt help, take the printer to another room and plug it in another power source.
If this doesnt help, use a multimeter to check if adapter is giving out right voltage.
If adapter and power source are fine, then your printer has a hardware issue and needs to be repaired by Canon.


Please get back to us if you have further query else please accept the suggestion.
Thank you for contacting fixya.com



Aug 06, 2011 | Canon PIXMA MP780 All-In-One InkJet...

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All of a sudden the MP560 won't turn on. The outlet is working but the printer doesn't respond to the ON button. I've checked the power cord it seems to be ok, the cord hasn't moved or been...


This may be a longshot, but many electronic devices like TVs, dryers with electronic computerized controls, entertainment systems like the Wii, and other devices sometimes get "confused" and won't turn on, turn off, or otherwise work properly, perhaps due to a small power surge in your AC line.

I've found that one of the first things to try when it appears to be a failure of the electronics and not a mechanical issue is to unplug the device at the wall (to make sure that any power adapter is also unplugged) and wait about 10 minutes for any residual electric charge to dissipate. Then plug the device back in and give it a try. This has worked with a television, a Wii console, an electric clothes dryer, and some other devices that I thought had died for good. This may explain why sometimes a device is taken to a repair shop and it works fine.

There are, of course, other reasons that the unit won't turn on, but I would try this first before looking for other reasons for the problem.

Jul 23, 2011 | Canon MP560 All-In-One InkJet Printer

1 Answer

Why can't I turn my canon printer on? I've checked and double checked that all connections are tight. I may be low in one ink cartridge but since I can't turn the machine on I can't...


Hi there,

If the printer is plugged into an AVR or a UPS try plugging it directly to a known good power outlet to make sure that it's not the UPS or AVR that's causing the trouble.

Another thing you can try is to make sure that the power cable is ok. Eventhough it's intact wires from inside the power cable might have melted so try swapping power cables or if you have a power tester check for the continuity of electricity on the power cable.

If both looks good and the printer still does not want to turn on, check if the power light has any sign of life, does it give a blinking amber light or no light from the printer comes out at all?

If there is a blinking light or a steady amber light try to remove all the printer components (inks, cartridges, etc. and put them back in then try turning the printer on)

If it still does not work please provide the model number of the printer as a service might be needed to make sure that the capacitors, IC's and the PC-board of the printer is ok.

P.S don't forget to check the fuses to make sure that they are in good condition.

Hope this helps!

Jul 10, 2011 | Office Equipment & Supplies

1 Answer

Prints fine but ink does not stick on the paper


Hi,

First try cleaning the scanner glass with alcohol or spirit. If you notice problem is still there reset the printer as per below.


Please try below resets one after the other if issue is not solved by 1st method.

Power Drain:

  • Turn OFF the printer, disconnect the power cable from backside of the printer and from wall outlet.
  • Press and hold the Power button for 60 seconds.
  • Connect the cable and turn ON the printer.

Partial Reset

  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "#" and "3" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.

Semi-Full reset


  • Remove the ink cartridges.
  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "#" and "6" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.
  • Insert the ink cartridges.

NVM Reset

  • Remove the ink cartridges.
  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "OK" and "Cancel" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.
  • Insert the ink cartridges.
Regards
Riztech

Jan 13, 2011 | HP LaserJet 4250n Printer

1 Answer

Worked yesterday, now will not turn on!


Hi,

  • Try connecting the printer directly to wall outlet without surge protector.
  • If the problem exists reset the print, see below steps to reset it.
Power Drain:

  • Turn OFF the printer, disconnect the power cable from backside of the printer and from wall outlet.
  • Press and hold the Power button for 60 seconds.
  • Connect the cable and turn ON the printer.

Partial Reset

  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "#" and "3" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.

Semi-Full reset


  • Remove the ink cartridges.
  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "#" and "6" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.
  • Insert the ink cartridges.

NVM Reset

  • Remove the ink cartridges.
  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "OK" and "Cancel" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.
  • Insert the ink cartridges.

Regards,
Riztech

May 02, 2010 | HP Photosmart 3210 Printer

1 Answer

Everytime I try to print it gives me an error "paper jam" and asking to press ok...once pressing ok it prints fine. No paper jam!!! just error messages


Hi,

You need to reset, try the below steps to reset the printer. Go to next level of reset, only if issue is not resolved.

Power Drain:

  • Turn OFF the printer, disconnect the power cable from backside of the printer and from wall outlet.
  • Press and hold the Power button for 60 seconds.
  • Connect the cable and turn ON the printer.

Partial Reset

  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "#" and "3" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.

Semi-Full reset


  • Remove the ink cartridges.
  • Remove the power cable from back side of the printer while its ON.
  • Press and hold "#" and "6" button, while holding them both insert the power cable and release the button after 10 seconds.
  • If printer turns OFF, press power button to turn it ON.
  • Insert the ink cartridges.

Regards,
Rizwan

Jan 19, 2010 | HP Officejet Pro 8500 Wireless All-In-One...

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