Question about Brother MFC 6800 All-In-One Laser Printer

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Improper printing Ever since I replaced the toner cartrige the preinter leaves a blank line on the right side of the page. Did I get a defective toner or do I need to replace the drum as well?

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  • 62 Answers

It sounds like you may need to clean your printer scanner glass. It may have white out ,etc. on it. There are two glass areas, one large and one small. Clean both and should solve your problem.

Posted on Feb 12, 2009

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The pages are not printed


sometimes in this case the dram needs to change (

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Solve horizontal line in cartage 12A


Horisontal line: I assume you mean a line across the paper movement direction. Please, inspect if the line is repeating on exact distance from one to the other. Measure the distance, divide by Pi (3.14) and you'll get the diameter of the faulty roller. Also, please, make a half print test page (open the cover in the middle of the printing process). Inspect if the line is appearing before the fusing unit or after it.
Try printing with different cartridge, just to be sure the cartrige is causing the problem.
Primary charge roller and its bearrings can be dirty and not charging enough the drum, causing black lines
Weared stripe on the OPC drum caused by friction with jammed paper improperly pulled out can also be the root of the problem. Faulty laser-scanner unit can also write black lines randomly. Weared teflon sleeve on the fusing unit can accumulate toner and print repetitive defects.

Oct 09, 2014 | HP LaserJet 1020 Printer

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HP LaserJet 1020 Printer Black leaving a black line on the left side of paper. What is causing this


Lines down the page can be caused by a few different things. The most common are the toner cartridge having a defect, or the fuser being worn out. The quickest way to figure out which one is to do a "half print" test. You need to start a print job, then open the toner cover when about half the page has been printed. Check and see if the line is on the page. If it is, then the toner cartridge is to blame. If it isn't, then the fuser will be the problem. (not worth replacing the fuser on this unit)

Be careful of the toner on the page with this test...it will not be attached to the paper and will rub off easily.

Hope this was helpful

Jul 26, 2011 | HP LaserJet 1020 Printer

1 Answer

How do you know when drum needs to be replaced I


It is possibly the drum unit.

If you have printed around 10.000 pages with the drum, you should consider replacing it.
Take a look at the black cylinder. (Where the toner connects to the drum) It should also have the same line on the right side.

You can try cleaning the cylinder with a soft kitchen roll or tissue. After that the printing should be normal. If the printing is still not normal, or is normal for just a couple of pages, you should change the drum unit.
If that also does not help, then the fuser unit within the printer is defect.

Mar 05, 2011 | Brother HL-2040 Laser Printer

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Vertical dark/smudged line on right side of paper when printing


See its a very common issue.the right side of the drum has moisture on it.remove the toner and drum and apply a hot air blower on it for some time also clean the printer internally.reinsert the toner and drum.
check by printing few pages the smudging on the right should go within 10 to 12 pages.
if the smudging doesnot go away then its time to replace the drum to solve the issue.

This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

Oct 11, 2009 | Brother HL4040CN Laser Printer

1 Answer

Dell 3100cn printer leaves a blank strip


The following table should help

Contamination in the laser path - 1. Clean the laser path. (Remove the laser/scanner assembly and clean the lens.) 2. Replace the laser/scanner assembly

Defective fuser - Replace the fuser assembly.

Lack of toner or faulty toner cartridge - Redistribute the toner in the toner cartridge. If the problem continues, replace the toner cartridge.

Dirty Corona Wire - Clean the Corona Wire.

Defective Drum - Mostly applies to B&W printers. Clean the drum or replace the drum.

Sep 20, 2009 | Dell 3100cn Laser Printer

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Panafax 550 leaving heavey black lines on pages


Clean the optical area with a soft cotton piece of cloth and window cleaner. How does the cartrige looks like, if you see toner on the drum you may consider replacing the cleaning bladeand the drum if necessary. The cartridge was refilled?

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Ricoh Aficio cl2000


Most of the time when I find this happening on a printer, not just Ricoh's it turns out to be the PCU (photo conductor unit). The color PCU is one unit and the black is a seperate unit. Hope this helps.

Dec 17, 2007 | Ricoh Aficio CL2000 Laser Printer

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