My printer has just stopped mid printing, status light is red and the light under the black dot is red suggesting the black toner is the problem. The print on last page printed didn't appear faded and I tried to change the colour of print to blue to finish out the doc. I'm on a dealine, please help.

Dear
Pl. run the SMART PANEL on your pc and get a test print from your pc, the smart panel will indicate the description of the error.
from the black toner light red means black toner is going to or exhausted.

For smart panel you can follow the link and put your model in search box to down load.
Printer Support SAMSUNG India

Thanks.

There is a few reasons that cause the status light to turn red, paper jam, paper empty, toner cartridge empty, cover open and waste toner cartridge full. The PC Smart panel utility should give you an exact fault condition. Hope this helps.

Well, if the toner light is on, you're probably out of toner and the only reason it ran, was because it was low but not completely depleted.

Try new toner drum off of Ebay or Amazon for the best prices for your brother printer.

It is a color laser printer.it has 4 toner cartridge(1)black(2)magenta(3)cyan(4)yellow all cartridge is missing or toner finished.Please purchase full set toner.All toner cartridge has a image sensor.When toner is run out then it is out of work.

A red Status light means 'paper jam'. A red light corresponding to one or more of the toner cartridges means empty cartridge. A flashing red light corresponding to one or more toner cartridges means low toner.

The red lite indicates one of the following needs to be looked at:

Cover open (Front cover) Close the front cover.

Cover open (Jam clear cover) Close the jam clear cover of the fuser unit.

Memory full - Press the go button.

Print overrun - Press the go button.

Clean drum unit - Clean the corona wire.

you are out of toner 

A paper jam has occurred. To solve the
problem, see “Clearing Paper Jams” on
page 6.3.
• The front or top cover is opened. Close the
front or top cover.
• There is no paper in the tray. Load paper
in the tray.
• The waste toner container is not
installed or full. Check the container.
• Your system has some problems. If this
problem occurs, contact your service
representative.

• Also i can indicate that the Toner Cartridges are empty and need replaced with Genuine Samsung Cartridges
  

How Brave is Jan?

Doubt it be the fuser(100 000life), "just magenta dots".... fuser would be "all smudged" or "black marks" , "the print rubs off" , "paper is creasing or jamming"

Can prove it by stopping a print (open door) when paper is1/2 way threw machine, you need to stop it before it goes threw the hot bit, so you can tell if the hot bit (fuser) puts the marks on the paper.

Transfer roller one would expect to effect whole print Smudged/Faint,uneven density

It will be the imaging unit ( 30 000 pagelife Ouch$ ) or possible leaking toner (if aftermarket)

Remove imaging unit and inspect film you should find image of lines, dots are usually chips or sticky stuff on drum surface, carefull no oily human fingers on surface please.

When stopping machine mid print and perfecting your timing, pull out the imaging unit and look at replica of your print notice if marked and where.

Hope this helps