Your printer should have come with a disk. This disk would have installed the necessary program that runs printing jobs, as well as keeps track of the ink level. Locate this program on your computer (may be under All Programs, Accessories under the Start Menu).
If not, Go into the Control Panel: (see below)
Above, you see "Hardware and Sound"; and below that shows "View Devices and Printers. Click on this. It will then bring you into the below dialogue box, of which shows any and all printers currently installed and which are being used. (see below)
Once you have located your printer here - (name etc). Go into your Start Menu: In the Search Box at the bottom type "programs"; look for the words "show which programs are installed on your computer", should be the fourth in the list. Below is what the list will look like. Find your printer here to ensure it's installed.
Once you have determined it's installed, you need to locate the printer program in your file system. Once you retrieve this, click it to open it. The program should allow you to view the ink levels. With most printers, when ink is low it will automatically open a dialogue box showing the ink levels for each cartridge. If you're printer is not equipped with this feature, then the only way to know if any need changed is when printing a document, and any color is not present.
I apologize for such a long response, as I wanted you to know how to access these files. If you are printing, and all colors appear to be present, without fading, or "blotchy" spots, then your cartridges are still good. You should be able to do a print test (calibration or alignment test) to determine this as well.
Please let me know if you need further assistance.
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