Question about Brother MFC 4800 All-In-One Laser Printer

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Brother MFC 4800. Faxes at receiving end have a line down page

I have cleaned the glass strip under the toner drum but that has not removed the line. Help please!

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Clean the wire in the drum (remove drum and place it upside down) by moving the blue plastic tab from left to right several times.

It fixed the problem for me.

Posted on Apr 06, 2009

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Brother 7840 MFC blank stripe down every printed page


1. Turn off the machine's power switch. Unplug the telephone line cord first, disconnect all cables, and then unplug the power cord from the AC power outlet.

2. Lift the document cover.
In the ADF unit, clean the white bar (1) and the scanner glass strip (2) under it with a soft lint-free cloth moistened with water.

Note

In addition to cleaning the glass strip with a soft lint-free cloth moistened with water, run your finger tip over the glass strip to see if you can feel anything on it. If you feel dirt or debris, clean the glass strip again concentrating on that area. You may need to repeat the cleaning process three or four times. To test, make a copy after each cleaning.

3. Plug the machine's power cord back into the AC power outlet first, and reconnect all cables and telephone line cord. Turn on the machine's power switch.

In Case You Still face Problem and Need Online Assistance Then Please Follow Us For On : Brother Printer Support

Feb 27, 2014 | Brother MFC-7840W Multifunction Laser...

1 Answer

White streak vertical down center of printed page


I tried all of the above but nothing worked. Brother's support didn't help either. I changed drums and toner cartridges to no avail. My copier is a MFC 8640D, but this should work on most laser printers.
I fixed my problem with a very simple solution, that I didn't find posted anywhere else. I removed the toner/drum unit (easy to do) and looked at the top of the bay where it was located. There is a recessed glass strip running the width of the opening that the laser uses to copy the image to the drum. I wiped it with a soft cloth and removed some toner residue, and then used a q-tip to further clean the entire length of the glass strip (it's called the laser prism). This removed the residue and my copies were crisper and the white streaks were gone. Hope this helps someone and saves you some time.

Jun 11, 2011 | Brother MFC 8500 All-In-One Laser Printer

1 Answer

Receiver end of faxes shows vertical black line. I changed drum and toner also cleaned glass scanner. I do not have a glass flatbed scanner only an automatic feeder.


The cause of this problem is usually a dirty scanning glass (there might be ink or white out on the glass). Check the glass really closely or the cause could be dirty optics or a bad CCD board. There are mirrors underneath the scanning glass. Dirty optics can cause lines when faxing or copying. If you can not access these mirrors, they would have to cleaned by a technician.

Sep 08, 2009 | Brother MFC 4350 All-In-One Laser Printer

1 Answer

Faded strip down length of paper


CLEAN DRUM UNIT AS PER MANUAL . IF THAT DOSN''T WORK TRY REPLACING DRUM AND/OR TONER

Aug 26, 2009 | Brother Office Equipment & Supplies

1 Answer

MFC-9440 CN--Lines in my auto feed scanned/faxed copies


clean the thin strip of glass located under the document feeder with something non abrasive

Feb 06, 2009 | Brother MFC-9440CN Laser Printer

1 Answer

My fax Machine has lines going each page that prints out


Get a can of air, open the unit and blow it out.
Also, clean the glass.
That should help solve the problem

Jan 08, 2009 | Brother MFC 4800 All-In-One Laser Printer

1 Answer

White vertical line on received faxes


hi,

The upper glass is under the drum unit.

- Remove Toner and Drum Unit and you will see the glass. Try to clean it.

Bye.

Dec 02, 2008 | Panasonic KX-FL501 Plain Paper Laser Fax

1 Answer

Dark Bar only on Sent Faxes


open the top where you insert the paper to fax look at the strip of thin glass is there any white out or toner on it that is most likely your line, clean

Nov 10, 2008 | Brother IntelliFAX 4100 Laser Fax

1 Answer

Brother MFC 4800 print quality problem


I would try cleaning the drum unit.
Take the drum unit out of the printer.
They recommend that you place the drum unit on a drop cloth or large piece of disposable paper to avoid spilling and scattering toner.
1. Carefully turn the drum unit upside down.
2. Clean the primary corona wire inside the drum unit by gently sliding the tad from right to left several times. (Be careful with the corona wire they are delicate.)
3. Return the tab to the Home position before reinstalling the drum unit. (If you do not position the tab at the home position, printed pages may have vertical lines.)
4. Re-install the drum unit.
5. Close the top cover.
6. Plug in the power cord.


Hope this helps.
Good Luck.

Apr 09, 2008 | Office Equipment & Supplies

1 Answer

Copies and outgoing fax quality


your machine most likely has toner spills in it.
if you send faxes face side down follow these instructions ;
1- take out toner
2- look for thin glass strip on bottom inside the machine
3-wipe clean

if you make copies side up then do the same except look for glass strip on the upper side of machine

Nov 27, 2007 | Brother IntelliFAX 4100 Laser Fax

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