Black printing I just replaced my black ink cartridges, but now everything is printing very streaky. I've replaced the cartridges three times and it is still not printing well. Before this, the black would print just fine.

It sounds like the printhead needs to be replaced. Brother may cover the cost of repair if you call them at 877-276-8437 and tell them the prints are "missing black ink". Very common problem that a new printhead should fix.

You said you replaced the cartridges. Were they Genuine Brothers' Cartridges?

My Brother MFC-240C, does not like Generic Printer Cartridges. That sounds like your problem. Also I had with Brother's was problem with Color. Color that should be Yellow, will turn out Green, or Blue Green, etc. The Generic Cartridges, also printed lines thru the words. That's what the Companies do., so they can keep selling the ink cartridges.

Some Printers, are able to use Generic, but you have to fill them up yourself and I heard, quite MESSY, or Take them to have them filled.

So I learned, thru trial and error, that you must use the ORIGINAL Genuine Cartridges for the PRINTERS.

This is the only advice I can give you. If you find this helpful, pls rate me.

Thanks and Good Luck :0)

You probably running out of black ink. Try replacing with new black ink cartridge.

Try to run a test print.

Most likely the printer has been sitting for along time not used or you have used cheap replacement ink. Epsons are notorious for clogging the jets with cheap ink. unfortunately replacing the ink cartridges will not help because the jets are seperate from them. If cleaning numerous times does not work your next best bet is to buy a cleaning ink cartridge for your model. otherwise youll need a new printhead or new printer. If your going to use cheap replacement cartridges stay away from epson.

Hi,
At most cases of printer, especially which have done refill at cartridge, print quality is poor or streaky. Many factors influencing this printed result. To overcome print quality is poor, maybe following tips can usefull to prevent printed pages are missing lines or streaky.

First step is ordinary to be done many people when print quality is streaky that is doing cleaning. To get good printed result, sometime this facility is used more than once.
Use Ink Refill with Quality Nicely
For printer have refilled, sometime the quality of printing is also influenced by ink. If will fill your printer again, use ink which the was quality of nicely. I have tested some refill inks at cartridge which have been ascertained still nicely ( sorry: I do not want to publicize result of this attempt). In the reality result make me surprise, there ink of refill making the printed quality is crummy. To choose ink refill read following tips :

• See viscosity of ink, every merk of ink refill have difference of viscosity. Don’t use Ink refill too jell. Difference of this viscosity is no measure reference viscosity of ink from factory maker of printer
• Don’t fear to try some inking merks. Done this, you’d find refill ink fitt with your printer. I now only using one merk of refill ink ?.
• This suggestion of forum, but I still not yet proved. May believe or not. Good ink aroma of soft usually.

Change Original Cartridge
This is last choice. A lot not like to do this ways, because price of original cartridge still costly. Alternative, you can use compatible cartridge which the was price of cheaper than original cartridge. At newest printer, usually there are two until four cartridge in one printer. And price four same cartridge almost at the price of printer even there are some costlier.

Let me know !

Thanks

Fame !

Fix Ya?

jets are clogged .clean as per printer manual.

You should try calibrating the colour and performing a print head alignment, if this doesn't work replace the colour print heads

Fix ink cartridge
I had same problem. I must have ran the clean cycle more than 30-50 times over a period of days. That never made any difference. I was about to toss the whole thing but figured I would try one more thing. If it didn't work I would be in no worse shape. Here is what I did.
Took an almost empty black cartridge and inject a lot of 100% Acetone to dilute ink. Left some black in it since I didn't want to think it was empty. Inserted this cartridge and ran the cleaning a few time. IT WORKED. I used my word processor program and filled a page with large bold font characters and printed a page or two. Each page cleared more nozzles. After doing this cleaning/printing a number of time, I put in the full good cartridge. Ran the cleaning a few time to eject any of the Acetone diluted ink. Ran the printed page a few time to remove more of the diluted ink.
Everything seems to work now.