Brother MFC-9840CDW Laser Printer color bleeding out

SOURCE: black dots on print outs from Brother Laser Printer MFC-9840CDW

meaning your printer drum is growing weak and will soon need to replace

SOURCE: My Brother MFC-9840CDW won't print color any more.

I assume you are running snow leopard on a MAC.

Please click on the link below and download and install file, this should resolve the issue.

Mac printer drivers.Brother printer drivers for Mac 10.6:
http://www.apple.com/downloads/macosx/apple/firmware_hardware/brotherprinterdriversformacosxv106.html

SOURCE: Brother MFC-9440CN Laser Printer how do i set

The only real way to make this printer wireless, is to connect its ethernet port to a wireless router and via the router, send jobs to the printer wirelessly. hope this helps. Cost is about $60-$70 for the router.

SOURCE: Scanning to email on MFC-9840CDW Laser Printer

This is a little dated, and I hope you have found your solution already, but for everyone else:
Press the # button Use the directional pad to scroll over to the @ symbol. When It is underlines press OK
To insert a ., press the * symbol, scroll over until . is underlined and do the same as above.

SOURCE: how do you turn off the drum alert after

Hi,I think this guys can have more helpful information about your problem.See this link:http://www.quikshiptoner.com/catalog/brother-mfc-9840cdw-toner-color-set.html#resett_drum_manualview More Info button to see how to install the Drum unit. Pay attentionthat after replacing a Drum unit in Brother MFC-9840CDW you have to reset thecounter. See steps 9, 10 and 11 for doing so.9) Close thefront cover, plug the power cable back in and turn on the printer.10) Press the Menu button,and then enter the number 84 to access the Reset Menu.11) Press the scroll keys until Drum is displayed and press OK.
I hope this can be helpful for you.