Screen colour like break

It is possible your colour cartridge has cross contaminated the ink reservoirs. To check this take the colour cartridge out and turn it over to see the coloured pads. They should look red, dark blue, and orange ( the colours are actually Magenta, Cyan, and Yellow, but are concentrated). If any of the pads are pale or particularly green - change the cartridge.
If the colours look alright, your issue is probably that your monitor makes colour by emitting light frequencies so is bright, printed images make colour by absorbing light frequencies so will always be darker. There is always the issue of course that your monitor also has a colour "temperature" bias. Photo pros calibrate their monitors and printers to match.

check whether the printer is in proper mode or not

If you are talking about the actual image that is coming from a laptop being yellow instead of white, then this is caused usually by a bad signal cable running between the computer and the projector.
To be more specific: All colours in a projector get made up in some way between red, green and blue. White is all of these colours at maximum, yellow is made by red and green at maximum but no blue. If your image is Yellow when it should be white, then the blue signal information is not reaching the projector. This can also happen within the projector or computer itself but is less likely. If your using a VGA cable (15 pin cable) then blue is run through pins 3 & 7 (positive and negative respectively), see if your cable is either missing these pins on either end or if they are bent, although it's more than likely within the cable itself. You can test this theory easily by trying to put something blue on screen, if the blue signal isn't getting through then it'll appear black.
If changing the cable doesn't solve the problem try testing the computer by trying to use a different one, and test the projector by plugging in a monitor or another projector.

If you are getting a yellow screen without sending signal and just trying to get the "no signal" or "no input" screen white, then this won't be the case.

needs a warranty repair... its due to a cable fault from motherboard to screen

I have a 21'' NEC TV Screen and it about 3 year old. the colour has gone to yellow and green color and the red etc

sometimes speaker magnets or any metallic device can cause this disturbance in this type of monitor. also, if you are using dvi, i would reset all video driver settings to default. this may correct this green tint you are seeing as well. reinstalling the monitor software could have a positive affect.

Hi,
Do you have a CRT monitor?
Have you tried to adjust the color on the monitor?
How is it connected to your computer?
It sound like one of the guns on you monitor died. But there is some testing you should do first.
If it is a CRT monitor and it is connect your computer properly. First thing to do would be to replace the cable and or try a different monitor that you know works.
To confirm try adjusting the color. If that does not work, if it more purplish it is the green gun, if it is orangish it is the Blue gun. That would be cause by a failed gun or driver.
If the gun is gone it is best to get a new one. It will save you money in the long run.

Thank you...

i have the same problem any one help?

Gimbo again. Think LCD damaged will need to repair. Pics. as normal when viewed or printed.
Why has nobody commented?
How much to replace screen? Any ideas?

The printer software should have an option for head cleaning & alignment. Make sure to run these maintenance options and see the results. You may need to re-run the tests.

Sometimes generic inks can cause a problem, so after cleaning, try to use an oem cartridge (same company as your printer) and observe the results.