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Bad copy quality on my brother MFC-9600. I have replaced the drum unit and still have vertical lines on the copy

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  • radiorick1 May 30, 2008

    Thanks for your help! The toner cartridge fixed the problem.

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Its not the drum,,, the toner cartridge has the black line pathc on the photosynthetic drum and that is causing the problem. check it by taking it out and roll the drum using your finger you will notice the vertical black patch. Get the toner replaced

Posted on May 30, 2008

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THE BROTHR WE HAVE MFC-9940CN STATES DRUM END SOON CHANGE BELT UNIT


If the unit is giveing good quality copies keep running untill the quality gose bad .Then call local dealer and let them replace the belt . Wont hurt the unit to keep using it.

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Laser MFC 9600 IS PRINTING BLACK LINES ON COPIES


Take out the drum and toner and slide the tab on the top right cover 15 times. Also clean the two Scanner glass windows under the cover.

Jan 06, 2010 | Brother MFC 9600 All-In-One Laser Printer

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Brother MFC 8220 all-in-one fax prints with a vertical line


First guess is you have a bit of dirt (often white-out from people scanning corrected paper that's not quite dry) stuck on the fax scan window. This should be described pretty well in your user manual (which you can download online from brother.com).

Its also possible that there is dirt (typically loose toner) on the laser scan window (there's a laser that shines through it to get the image pattern on the drum). That window is often along the bottom of the unit under the drum/cartridge (take the cartridge out and look). The Brother manual I've seen seems to ignore this possibility.

Print streaks DO NOT mean cartridge drum replacement in many cases !! On brother Intellifax or MFC or other laser copier/printer/fax, keep in mind that either the fax/copy scan window OR the laser scan window can get dirty. If the fax scan window is dirty, you see streaks on outgoing faxes and copies (but NOT incoming faxes). If the laser scan window is dirty, you see streaks on all prints (copies, faxes, print-from-computer).

Note also that when transporting/moving some laser copier with the toner cartridge inside, the toner can get out and make a big mess inside (including getting the laser scan window dirty). An air compressor can be usefull to blow it out. And sometimes using alcohol to clean is a BAD idea (maybe incompatible with plastic and rubber parts). A damp rag is probably fine.

Nov 21, 2009 | Brother Printers & Copiers

1 Answer

Brother MFC-6800 - Mysterious Vertical Lines


This unit has a brom tube unit and need to be replacement . By repair tec.

Oct 05, 2009 | Brother Multi-Function Center MFC-240C...

1 Answer

Brother MFC 7220 prints vertical line from top to


The photosensitive drum needs to be cleaned or replaced. If after cleaning it the vertical line continues, the printer may need maintenance.

Sep 17, 2009 | Brother MFC-7220 All-In-One 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

Brother MFC9600 dirty printing


We were having a lot of print quality problems, similar to what you describe. We replaced the drum and it worked fine.

Nov 19, 2008 | Brother MFC 9600 All-In-One Laser Printer

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 | Printers & Copiers

2 Answers

Print quality bad


To clear white vertical lines from printed documents follow the steps listed below:

NOTE: The use of non-Brother or generic toner may cause white vertical lines.

Brother strongly recommends that customers do not use generic drum units and/or toner cartridges, or refill their Brother toner cartridge. Each Brother laser printer is designed to work at pre-set temperatures that are matched exactly to each of our individual toner formulations. Each individual component is designed to work with the other to ensure quality and reliability. Using non-Brother supplies may affect the hardware performance, print quality and machine reliability.
The Brotherlimited warranty does not apply to any problem that is caused by the useof unauthorized third party drum units, toner cartridges or toner.

1. First, power OFF the unit for safety. The ON/OFF switch is located on the left, rear side of the unit.

2. Open the scanner cover by pulling the blue lever located below the control panel toward you and lifting the cover. Make sure the cover is completely open.

3. Remove the drum unit by holding each side of the drum by its handles and gently lifting the drum forward (toward) you.

4. Place the drum unit on a drop cloth or large piece of disposablepaper to avoid spilling and scattering the toner. Make sure thedirections and DR-250 stickers are facing you.

5. With the drum removed from the Brother machine, clean the laser glass. The laser glass is located inside the Brother machine where the drum was located. It is a piece of glass, about 1/2 inch wide and approximately 8 inches long, located on the bottom of the inside. Gently wipe the glass with a clean soft DRY cloth. DO NOT use isopropyl alcoholor any liquid to clean the glass.

6. Gently pull up on the mauve lever to turn the toner cartridge toward you until it stops. Remove the toner cartridge from the drum unit by gently sliding it out of the drum unit. ***Handle the toner cartridge carefully. If toner scatters on your hands or clothes, immediately wipe it off or wash it with cold water.

7. Gently rock the toner cartridge from side to side five or six times to distribute the toner evenly inside the cartridge. Then, reset the toner into the drum (be sure it clicks into place). Gently push on the mauve lever to turn the toner cartridge away from you until it stops.

8. With the DR-250 sticker facing you turn the drum upside down. There is a blue tab located on the right side. Slide the blue tab back and forth seven times to clean the corona wire. When finished, make sure the blue tab is locked to the right side of the drum.

9. Reset drum unit in Brother machine. Close the cover securely.

Print the help list to test the unit by pressing the REPORTS key located on the control panel and then (1) on the dial pad.

If the white vertical lines still continue, the drum unit will need to
be replaced.

If the purchase date of the original drum or replacement drum is less than 90 days (within the warranty of the drum), contact Brother Customer Service Center at 1-877-Brother (1-877-276-8437) . The center is open Monday-Friday, 9:00am to 7:00 pm EST, excluding holidays.

Dec 26, 2007 | Brother MFC 6800 All-In-One Laser Printer

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