Question about Brother IntelliFAX 4750 Plain Paper Laser Fax

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Brother fax after receiving a few pages of faxes...the pages get a thick black line running down the page and i can no longer read all of the print. There is a tab that you slide back and forth (on the cartridge) and i have slid it to clean. what else can i do?

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The drum cleaning blade is worn out. You must replace the Drum Unit.

Posted on Oct 26, 2008

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1 Answer

Black line on copy and fax functions


Clean the paper path for the scan/fax portion. The original goes in and as the document is "read" a spot of dirt is causing the black line down the page because it is picked up in the copy area.

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When receiving a fax I get either big black plotches all over the page or thick black vertical lines running the whole length of the page to a point where I can no longer make out any of the information...


Try making a copy of something or printing a transmission report or journal from the "reports" menu. If the same problem is apparent on these printouts, then your drum unit or toner cartridge need to be replaced

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If the line runs the way that the paper does I.E. vertical on a portrait then it is dirty rollers normally.
If you open the lid and wipe the rollers this shoukd reduce or eliminate the black lines.

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the waste ink pads are full ..when the black line appears it is an indicator that the waste ink pads are full it is usualy because the printer has reached its life expectancy the solution is either buy a new printer or pay a tech about 170 dollars to repair it

Jan 07, 2009 | Canon PIXMA MP830 All-In-One InkJet...

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Cant receive faxes


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.

Sep 10, 2008 | Brother IntelliFAX 4100 Laser Fax

1 Answer

Black lines on received faxes


look for a corona wire, close to the drum
  1. Clean the primary corona wire inside the drum unit by gently sliding the tab from right to left several times.
  2. Return the tab and snap it into the home position.
zl42b.gif Note
    If the tab is not at the home position, printed pages may have vertical stripes.

    Jul 18, 2008 | Brother IntelliFAX 4100 Laser Fax

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    Printing


    It sounds like the toner is getting low. Take out the toner cartridge and rock it back and forth a few times to redistribute the toner evenly in the cartridge. If this makes the printouts look better, you should order another cartridge, as this one is getting low. I'm not sure about the L-100, but the toner cartridge for the L-120 fax is good for about 2,000 copies.

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    Receiving faxes


    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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    HORIZONTAL Lines on faxed/scanned pages.


    I've seen this before. Since the printer portion is working fine that points to the scanner mechanism as the culprit. There are two things I have seen cause this. 1) If the line is a perfect rectangle all the way to the edge of the page then the light bar itself is dying and there isn't much you can do to save the unit. Send it in for warranty repair if you have the option. 2) If the line is more like a skid mark like you mentioned, then the paper that is being scanned is not pressing up fully against the light bar. Not enough light is bouncing off the page and the scanner can't read it well. This can also be caused by a roller not feeding correctly and then bunching up the paper a little bit. I would check the rollers for wear or something being off center. This can sometimes be caused if the machine has ran a high volume or thick paper. I would really think the cause would be one of these two since you are getting the marks at odd intervals, if the intervals were regular it could *possibly* be the drum but as I stated before, with the print function working right, I doubt it.

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