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

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My fax Machine has lines going each page that prints out

Our Brother MFC-4800 Fax Machine has lines through every single piece of paper that comes out. It doesn't matter if I make a copy of something or if I receive a fax. It started out that there were only white vertical lines going through the paper so I changed the toner and the drum unit, and now the white lines are still there but they are also accompanied by black vertical lines on top and paper and bottom. Can this be fixed or do I need a new fax machine?

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

Posted on May 01, 2009

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How to you clear the memory on a brother MFC-9125CN


Im not completly sure this applies to your mfc brother. remove all paper. turn on machine. select"menu" "0" "6" this resets it . you will have to re-due your personal setting otherwise it goes to defalt at time of purchase.

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Your fax machine uses the same line as your phone. You will need to read your manual to decide after how many rings you want the fax machine to answer. Generally should be after your answering machine. Your fax number will be your telephone number.Hope It's resolve all Your Printer Problem,
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Machine# 4800mfc With incoming faxes the machine prints 2 pages- the 2ND blank. It wastes one page for everyone it prints. Do you have a solution?


This could indicate that your "paper size" setting is not correct for the paper you are using or the "reduction" setting may not be correct.

Brother support suggests that the "Reduction" value be set to "Auto Reduction" = ON

To set "Auto Reduction" to ON:

1) Press the <Menu/Set> key
2) Navigate up or down to "Fax" - press <Menu/Set>
3) Navigate up or down to "Setup Receive" - press <Menu/Set>
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Brother MFC6800 not printing


To answer more effectively - how is the printer connected to the iMac? Is it a USB connection, a printer cable, is the MFC 6800 connected to a print server, an AirPor, etc? A second question I have is if you are trying any kind of tricky printing such as manualduplex printing.

Also, a shot in the dark...Is the Auto Reduction set to on or off? To check:
1. Press MENU/SET, 2 (Fax), 1 (Setup Receive), then 4 (Auto Reduction).

2. Press the up or down navigation key (keys located above and below the
MENU/SET key) until the display shows "Reduction: ON?".

3. Press MENU/SET.

4. Press STOP/EXIT.

Another item to keep in mind:
You can use three sizes of paper for printing your faxes and
copies---letter, legal and A4. When you change the size of paper you ha
ve loaded in the Brother machine, you need to change the setting for the paper size so your Brother machine can fit the incoming
fax on the page. To set the Paper Size:

1. Press MENU/SET, 1 (General Setup), then 1 (Paper Size).

2. Press the up or down navigation key to select LETTER, LEGAL, or A4.

3. Press MENU/SET.

4. Press STOP/EXIT.


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2 Answers

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First make sure your line cable is plugged into the correct place. Most Brother machines have a plug for Line and a plug for Extension (EXT), make sure it's plugged into "Line".

Go into the menu on your Brother machine and select Fax, then Setup Receive and then select Easy Receive. This will usually solve most recieve problems.
Brother machines come with s default of 4 rings before they will answer, make sure none of your other devices (such as an answering machine) are set to a lower number of rings or the fax machine will never grab the line.

If you have distinctive ring, make sure you have it set up in the machine. There is a section in the owners manual for setting up discinctive ring.

If the machine grabs the line and goes through the motions but nothing comes out on the page (no black print) then make sure you are using a Brother ink cartridge (not refilled or generic) and print out the test page using the "ink" button. Allow the machine to clean a few times and see if the test page prints out correctly. If you are using refills or a generic black, you might have premanently damaged the print head. In this case take it to a service centre to have the head tested.

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