Printer won't print the BLUE color.

You need to clarify :
1. Your printer cannot print color even though it prints color well from a test page;
2. Your printer cannot print color in a test print page.

If it is the first one, then you have to set it properly in Window Print Configuration page of that printer;
If it is the second one, then you have to check whether you have installed the color ink cartridge properly in the printer. If the color ink cartridge is installed properly, try to replace another new color ink cartridge. Finally it is still not work, then you have to bring back to the repair center.

Make sure that you are inserting only genuine Lexmark cartridges in your printer. Removing then re-inserting the color cartridge into the printer is a quick to minor cartridge communication issues.
Make sure that your color cartridge still has substantial ink level for printing using the Lexmark Solution Center software on your computer.
Click Start > Programs > Lexmark X74-X75 > Lexmark X74-X75 Solution Center. Check the ink levels.
If color ink level is still good, then it probably just needs some cleaning. Print quality issues can be due to dirty or clogged print cartridge nozzles. From the Maintenance tab in the Lexmark X74-X75 Solution Center, click Clean print nozzles to fix horizontal streaks. Your printer will then print a test page. Try to print a color page again to verify that the problem with the blue color is fixed.
If the problem continues, try to insert a different known working color cartridge to identify if it's a faulty cartridge issue.

The magenta has run out (red).
Replace the HP 22 tri-color cartridge.
It probably has yellow and cyan (blue) left in it, and the black is most likely working as well, but if any of the 3 colors in the tricolor cartridge run out, the whole cartridge must be replaced.
For instance, if I printed my vacation photos and there was a lot of water and blue sky in all of them, the cyan might run out long before the cartridge life expectancy.
Also, don't forget that cartridges are rated in pages printed at 5% coverage.
Since a photo is about 25% of a full page, a photo printed at full bleed (edge to edge) will only yield 32 4 X 6 inch photos from a cartridge rated at 160 pages (5X expected coverage = 1/5 the prints)

I agree with Epson. Epson printers are very very hard to unclog. You can spend around $25 for a cleaning kit and *maybe* get it to work, or get a whole new printer that is faster and better quality for less than $100.

You can http://www.inkjetrefill.com/epson_clean.htm

please you buy a new blue maen cyan cartridge

You need to change the color settings of the printer to print using color and black ink. Refer to printer help.

Hope you have installed a original ink.
Take the cartridge out, wipe the extra ink on the cartridge and carrier with little alchole and cotton. and reinstall the cartridge back.
Print a test page and let me know

Kevin

I came up with a work around for printing black.

I changed the black cartridge with the color cartridge.
Then when I have a letter to print, I change change (or write) the letter text to yellow, red or blue.
Then I can print out a letter.

By printing the text as yellow, red or blue the cartridge will try to print with only 1 color, but will print out black.

If you do not use one of these primary printing colors the out put will be unusable.

I can not of course print out pictures.

Your color cartridge is probably empty as well. you can go to>control panel>printers and faxes> your printer >right click on preferences then click on services. Do all of the maintenance possible on your cartridges and see if that helps. Are your cartridges HP cartridges or generic refills?

Re you using genuine HP NEW cartridges? If not, you must make sure that whoever has re manufactured the ones you are using has replaced the chip on the cartridge. This tells the machine how many copies are on the cartridge.