Was told from a local printer expert to fix this problem, I would need to replace the drum unit. Did so and it didn't fix the problem (returned the new drum also). Pages are coming out 'grainy' or 'shady'. HELP! Love the printer otherwise....
If all the colors are effected by grainy look, then it could be the imaging unit like you were told or the transfer belt. Unfortunately there generally isn't a way to test which one it is but to swap and test.
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Send a print to the unit, open printer when paper is in drum area (guess and open a door or turn off, to stop the printer) open carefully, remove carefully and look at the paper, are the lines there, pull drum unit, flip open drum protection door if equipt, and look at the partial image on it, If the lines were imaged on the drum, replace drum unit. No marks on drum or paper yet, posible the fusing section roller is damaged and marking pages. Stop test will show where defect starts.
Do you have enough ink in your printer? This can be a problem. A faulty drum/roller could also be a cause which in that case will need to be replaced. Since you have done your part i guess the rest should be handeld by an expert personally.
You may need to change your drum unit. The replacement part number is DR400
To replace the drum unit follow the instructions listed below:
Do NOT use flammable substances or any type of spray to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock.
Just after you have used the FAX/MFC, some internal parts of the machine are extremely HOT! When you open the top cover of the FAX/MFC, never touch the shaded parts as shown in the diagram below:
Open the front cover.
Remove the old drum unit. Place the drum unit on a drop cloth or large piece of disposable paper to avoid spilling and scattering the toner.
Remove the toner cartridge by holding down the lock lever on the right and pull the toner cartridge out of the drum unit assembly.
Wait to unpack the new drum unit until immediately before installing it. Place the old drum unit into the aluminium bag.
Reinstall the toner cartridge into the new drum unit.
Reinstall the new drum unit, keeping the front cover open.
Press the Clear key to display drum status.
Press 1 on the telephone keypad.
When the display shows "ACCEPTED", close the front cover.
Discard it according to local regulations. If you are not sure of them, call your local Sanitation Department. Be sure to seal the drum unit tightly so toner powder does not spill out of the unit. When discarding used drum units, keep them separate from domestic garbage.
Hello sir;The streak line from printing also should be from copy, because the line come from imaging unit, check the meter count if close to or over 50,000 then replace drum and drum blade, it will take care the problem.
The brother printer you need to replace imaging unit( drum unit).
There is only a manual reset for the toners but I'm sure you already knew that... The drum is just a plug-n-play type consumable and should just reset automatically unless it's an old drum... ( make sure that you didnt make the mistake like so many of us a reput the old drum back in again) if your sure its the new one then it's obviously defective and depending on where you got it you should be able to defect it out for credit... hope this helps... www.bigmoneycentral.com