Lost the color yellow and magenta in test print

Most printers have 4 color inks: Black, magenta, cyan, yellow.
If your magenta ink isn't printing, then your prints will have a green cast.
If your printer has a "nozzle test", I suggest doing that. If it has a "head clean" function, that may help.
Replacing the magenta ink cart may be all that's needed.

Tri color cartridge contains Cyan,Magenta & Yellow color inks, mono cartridge contain black ink, combination/mixing with these inks desired color out put will prints on paper.. If any one or more inks are missing/dried, result mis matched print outs on paper.
In your case I feel it's Magenta ink is not firing..,nozzles may clogged, try to clean the nozzles with solvents & try it...If no result ,. replace the color cartridge..

Enter in the service mode and select tes mode select gradation test pattern and make a test for black,cyan,magenta and yellow.If the gradation is not OK you have change the bad imaging unit,or change the developer and drum in the bad image unit + the chip.

Dirty laser unit - needs (careful) cleaning internally.

See ' Printing Weak Magenta', 'Printing Light Magenta' for HP CM1015, HP Color Laserjet 1600, 2600, 2605.

All the same laser unit

Either the ink you are using is not going to give the color you want, or you have print heads that are blocked.

the problem is not with the printer but it is with the ink that might be damaged, this is located inside the printer

It all depends on the meaning of 'not properly'.

Try creating a document with four different squares, or words, of these colours: yellow, magenta, cyan and black. If all of them print (albeit not with the correct shades) it is probably an ICM driver error. But my guess is that only one of those four colors will print badly, due to a defective color cartridge.
The OKI 5150 makes all perceivable colours using cyan, magenta, yellow and black toners, so if one of these malfunctions, the resulting colors will lack the required shade of, say, yellow, and will appear to be "wrong". The yellow colour itself, of course, would simply disappear (the "yellow" you use might actually be 95% yellow and 5% cyan; then the "yellow" square will be printed as a very light shade of cyan, while the other colors - say, 95% magenta and 5% yellow - will turn out almost exact).

Try with the color test and replace any failing cartridge; if all four (almost) pure colours do print incorrectly, it's unlikely to be a cartridge problem, and we'll have to dig deeper.

try to clean the noozle of you catridge..... then try again...... or try to shake it

Without knowing what printer you have or what things you have tried I can only guess here. It sounds like you need a new cartridge. A color ink cartridge will have 3 colors of ink for most printers...cyan (blue), magenta (purplish-maroon), and yellow. Depending on what you print it is very possible that you could run out of one of the inks before the others. Printing green can be an indication that you are out of magenta ink. The cyan and yellow inks will combine and look green.

You can remove the cartridge and run a tissue over the printhead and see if you see all 3 colors as a quick test. If you only see cyan and yellow, then the magenta is probably empty or dried up. If you see all 3 colors I would reinsert the cartridge and try printing again. It is possible that the magenta was just clogged and you cleaned it with the tissue. If it still doesn't print all colors your best bet is probably to just get a new ink cartridge.

sounds lke your yellow nozzle not working properly...had same issue on lexmark printer, ended up geting this epson...learnt from my mistakes...perhaps it ran dry? or you left the yellow cartridge out longer than the rest....only you might know what happened