Are you sure your model number is not MFC-5890CN
Check to see if you are trying print with "Page Layout: 2 in 1" and the quality is set to Super Fine or Fine. Try changing the quality setting to Normal or Fast and try again.
If you are using the 2 in 1 feature and some of the borders around the document are not printed or lines are printed that shouldn't be there; the issue can be resolved by adjusting the print margins of the document from the page setup area of PowerPoint.
There have been recent updates to printer drivers for the MFC-5890CN.
Please see here
to download updated drivers ad software. You may also find the FAQ's & Troubleshooting section to be of assitance.
Trust this is helpful.