T300 - Slow and bad printing in duplex and .pdf file.

"Hi,

Can't find out if it applicable to Brother printers but with Canon printers when printing in duplex mode, black is made up from a composite of all the colours and not black and it is a lighter print.

This is to prevent it showing through to the other side of the page and spoiling the printed page presented to the reader

Can only suggest that if you can, try another Brother printer to see if this occurs on it too. At least it may indicate that it is intentional.

With regard to slow printing of .pdf, try the following:

Open a PDF file

From the menu, select File > Print >Advanced > select ""Let printer determine colors” then click OK then OK to print the document

OR

In Adobe Reader in Advanced print setup enable Print as image and check if the print speed has increased."