Question about Brother MFC 420CN All-In-One InkJet Printer

1 Answer

Difusser install Still Prints but getting a message to install difusser or out of difusser.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Brother Master
  • 4,338 Answers

The diffuser is the optical lamp that distributes the light which allows the image to be seen by the drum and consequently put onto the paper. Is is not something you install. If you get this message , it it a mechanical problem and it needs to be serviced.

If I could be of further assistance, let me know. If this helps or solves the issue, please RATE it.
Thanks, Joe

Posted on Oct 14, 2008


1 Suggested Answer

  • 2 Answers

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

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

4 Answers

Pump turns on but not sucking any water

Sure there is water in the pump toy start with?
If the pump element runs in air, it won't be able to move water.

Jul 17, 2014 | Grundfos Pumps Grundfos JPF-3 1 2 Hp 115V...

1 Answer

I have an older Hayward pool filter. Is there a link to dowload instructions for replacing or adding sand to the filter?

Here is how I do it. Open the top. Open the drain on the bottom to allow the water out. Remove the plastic water difusser on the top. With a small can, scoop out the sand. When you get to the laterals, remove them for inspection. The sand below the laterals if fine, it does not need to be removed. Put the plug back in. Replace any laterals that may be broken (probably none) Fill the filter with water to about 6 inches above the laterals ... maybe more. The water will protect the laterals from the new sand as you fill the filter. It will also help the sand to pack in around the laterals. Continue filling until you are about 3 inches below the difusser that will go on the top. Make sure you don't bury the little black hose. The purpose of the little black hose is to remove the air from the filter during operation. The hose should ultimately stick up into the inside of the top (cover). I think your filter takes about 300 # of sand. Double check with your professional pool supplier where you purchase your sand. I normally will fill the filter with water before I replace the top. You may want to put on a new "O" ring too ...

This new sand should last you at least 4 to 5 years in non commercial use. After that time, you may want to replace the top 4 inches with new sand.

Thanks for your question @

Jul 06, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer


First to be sure shut the breaker off then turn back on. Most breakers require that you do this for safty reasons. Check all your power from the breaker to the back of the motor with a meter. If you have power shut it off then open the pump by removing the steel clamp that goes around the pump. Pull the motor and back half of the pump away from the rest of the pump. Now remove the difusser, the white plate covering the impeller. Then try to spin the impeller. If it spins then try to start thr motor. If it goes then you have a problem with the impellor or the difusser. If it won't start at this point you probally have a bad motor and will need to replace it. I always recomend new but you can get a rebuildt. If it's the impeller that will usually be obvious. You can take it into your local store and have them match the parts and they will usually do the bench work for just the charge for parts.
I hope this helps, good luck.

Aug 31, 2010 | Sta Rite Sta - Rite 2hp Max - E Pro...

1 Answer

My refer is at 41 degrees just had the difusser

Maybe your evaporator needs cleaning, I'd check that.

Feb 03, 2010 | KitchenAid KSRS25IL Side by Side...

1 Answer

Color spots on screen. Yellow mid way on top and blue on bottom left.

this can be the dirt issue on difusser. Clean it properly. Moreover, if you have any appliance that contains the magnetic effect, remove it near the tv.

good luck

Feb 02, 2010 | Panasonic Televison & Video

1 Answer

Flame height on one burner decreased!

you need to clean your difusser for that burner,
its probably have gunk built up on it

Oct 05, 2009 | KitchenAid Superba KFRS271TSS Stainless...

1 Answer

I have a Whirlpool Gold Conquest Mod# GS6shexnt00 side-by-side. About 18 months after buying it the refrigerator section stopped getting cold but the freezer section still worked even though it had iced...

Yes, the difusser door is not allowing cold air to enter the fridge section, a fridge freezer is actually just a freezer, some of the cold air is drawn off from the freezer to chill the fridge protion, if the door is stuck, broken no cold air is getting to the fridge section

Aug 22, 2009 | Refrigerators

1 Answer

How to Change the Headlights in a 2008 Lancer ES

You shouldn't have to remove the entire headlight assembly to change the bulbs; They should either twist out, snap out, or have a spring clip that holds the bulbs in.

Mar 31, 2009 | 2008 Mitsubishi Lancer GTS CVT Sedan

1 Answer

Air difusser between freezer and fridge will not stop running

When things like this happen I usually replace the main electronic circuit board which would control the motor operation timing, etc.

Nov 29, 2008 | Whirlpool Refrigerators

Not finding what you are looking for?
Brother MFC 420CN All-In-One InkJet Printer Logo

Related Topics:

47 people viewed this question

Ask a Question

Usually answered in minutes!

Top Brother Office Equipment & Supplies Experts

James Cagle
James Cagle

Level 2 Expert

475 Answers


Level 3 Expert

379 Answers

Jim Keysor

Level 2 Expert

329 Answers

Are you a Brother Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides