Out of toner........ but not really.....

First of all, for financial reasons you don't use a color printer. Unless you print graphs.
Second of all, this is a laser printer, it doesn't use ink.
Third, all four toner cartridges must be inserted and working in order to print in any color.

Go back and read the "First of all" again and buy a B and W laser printer.

Check your toner levels. If OK Restore default settings on Printer

This is a common problem with this model of printer. The scanner optic degenration is due to dust buildup on mirrors and lenses. Since the most vulnerable mirror reflects its laser beam to the magenta toner cartridge, red tones are the first to show fading. Colours shift: purples turn blue and oranges turn yellow. The printer will need to be cleaned by a certified HP technician to resolve this issue as it means dismantling your printer to fix the problem.

are you sure the colour is not magenta,if so replace the magenta toner

This problem is somewhat common and is caused by dust/toner buildup in the laser optics. Unfortunately it requires quite a bit of dis-assembly to get the laser unit out of the machine in order to clean it. If you are mechanically inclined and really want to do this yourself just locate and dowload the service manual. It has instructions for laser unit removal. If you don't want to do this then you should be able to get it done for less than $100.
If you remove the 4 toner cartridges first then look at the area behind where the cartridges were. You should see kind of a black plastic box looking area with 4 "slots" about 1/4" high running from one side to the other. These "slots" are where the laser comes thru to write the print onto the drum in the 4 cartridges. You can try cleaning the front side with a cue tip. This might help but usually the problem is the toner/dust is on the inside of this unit and the only way to clean it is to remove the laser box and dis-assemble/clean it.
Good Luck and Thank You for using Fixya.

The laser unit is positioned in such a position that the air intake fan draws any environmental dust into the unit and the lens and mirrors of the magenta laser are first to be deposited with this dust resulting in a week laser beam onto the magenta drum , resulting in very light magenta images. Solution if you are technical minded take the unit out the rear ond clean all the laser mirrors and lenses be very carefull. I regularly have a machine in the workshop with this problem , the cleaning of the laser unit can also be a solution to the colour mis alighnment problem.

surely,mirror laser scanner is so dirty,call expert for service cleaning.

The flashing lights on the printer shows you which cartridges need to be replaced.
you need to replace those toner cartridges.

i have priner hp laser jet 2600n but it is printing very low any pic if i print it is come very low color i changed toner cart but still same problem.

This printer should still be under warrantee, can you take it back?