Fax problems my fax machine will not print incoming faxes or print copies

is the number for incoming fax correct and setup properley

make sure the property settings for the fax are not on the Microsoft printer make sure it is set to the local usb printer

If it is just from incoming faxes and not from anything you print/copy then it is the sender's fax machine that is dirty. If everything you do has that line, try cleaning the scanner glass and corona wire.

Can you make a copy with the fax machine?

hp laserjet is not a fax.It is only a printer.

Per Brother's User manual,
http://www.brother-usa.com/ModelDocuments/Consumer/Users%20Manual/UM_IntelliFax_4100_4750e_5750e_EN_98.PDF

Clean the machine’s interior and the primary
corona wire of the toner cartridge This is a common cause for your printing/copying problem. This should solve your issue. Best of luck.
Greg

My good friend:

The only reason why your unit stops printin faxes is because the toner cartridge is nearly empty. Th e unit will then try to conserve the remaining toner for printing and copying. Follow this steps to program the unit to print all faxes, even with toner low:

When the toner cartridge is nearly empty, the machine shows
the “[Toner Empty]” message and continues printing except
incoming faxes. In this case, incoming faxes are saved in
memory.
However, you can set the machine to print incoming faxes, even
though print quality is not optimal.
1 Press Menu until “Machine Setup” appears on the display.
2 Press the scroll button ( or ) until “Ignore Toner”
appears on the bottom line and press Enter.
3 Press the Scroll button ( or ) to select “On” or “Off”.
Select “On” to ignore the [Toner Empty] message.
Select “Off” to stop printing incoming faxes when the
message appears. This is the default setting.
4 Press Enter to save the selection.
5 To return to Standby mode, press Stop/Clear.

Be blessed

are copies light too? if not then it is sending fax, but most times it is inferior ink or drum causing the problem sometimes damp paper (try printing on reverse side as well)

press setup on printer select preferences and select default tray as 2 and try making copy and also check while receiving fax and also follow this link http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01096354&cc=us&lc=en&dlc=en&product=1119598&dlc=en&lang=en