impossible turn off COLOR MANAGEMENT with epson stylus photo printer

I'm looking at a PDF copy of the manual for your printer. It's a bit incomplete, so I have to make some guesses. When the Epson print dialogue box is up, can you change the menu that initially says "Print Settings" to "Color Management"? From what I see on page 85, it should be possible. You'll get three radio button choices there; Color Controls, ColorSync and No Color Adjustment. Choose the last one.

You also need to make sure the program you're printing from also is told not to color manage. Whatever you're printing needs to go straight to the printer with no modification to the color data; either from the application or the printer's own driver.

As long as you've done that, then no matter what the printout looks like, it is correct. Read in the patches to build a printer profile for that paper. Note that you need to repeat this for each type of paper you use. A profile is only good for the paper is was created on.

i always turned on the button of NO COLOR ADJUSTMENT but it does not have any effect.

Do you mean the printed output of the color patch targets comes out the same whether you choose ColorSync or No Color Adjustment? They shouldn't.

Does the software give you a choice how to profile the printer? That is, CMYK or RGB? Even though a printer basically uses CMYK inks to produce color, there are very few (if any) lower priced inkjet printers that can be profiled as a true CMYK device. Almost all work as an RGB device. So be sure to use RGB as the color space for the printer.

I can see on the monitor all the color patches but when i print the result is completely different and the monitor is correctly profiled.

Completely normal. In order to profile any device, you need the device to produce color in its raw state, whether that's a printer, monitor, scanner or other. Which is why the targets need to be printed with absolutely no color adjustment. The raw color output from the printer won't match your monitor for two reasons:

1) It shouldn't. The profiling takes care of the difference between what you see on the monitor and what the printer does with no color control.

2) It won't. Monitors display far more color than any ink/paper combination can reproduce. So even a perfectly profiled printer still won't give you an exact match to what you see on screen. Colors that are within the printer's gamut and color range should be extremely close. As you get into colors outside of the printer's capability, they will get further apart. Bright, saturated colors on screen will always print much more visually dull on paper. There's nothing wrong with the printer in those cases, it's just not possible.

What DataColor package are you using to profile your printer?

There's only one product DataColor sells with "Spyder" and "Print" in the same item name. So I'm assuming it's this one. Spyder 3 Print SR

From your last post, this sounds like the problem.

I used colorsync with selection of “generic rgb.icc” as profile on the printer instead of the Epson profile.
Passing trough colorsync I got different colors (more similar to those of the monitor). I profiled the printer with these targets...

It sounds like you're assigning a profile to the patch target images before sending them to the printer. That's a no-no. When you're creating a profile, there can be no color adjustment at all at any point in the process. I'm assuming you have Photoshop and not just PS Elements. Here's what you need to do based on that. I'm going by PS CS4 for these instructions, so they what you see may be a bit different.

1) Open the color preferences for Photoshop (Command ShiftK). In the "Color Management Policies" section, make sure the check boxes are on for "Profile Mismatches" and "Missing Profiles". Click OK.

2) Open the target images. Photoshop should tell you there is no profile and ask what you want to do. Choose "Leave as is (don't color manage)".

3) Once the color patch target is open in Photoshop, DO NOT assign a profile or do a convert to profile. It needs to be unmanaged.

4) Print the image to the Epson. In Photoshop's print dialogue, select your printer and its Page Setup as usual. Make sure it prints at 100% of size. At the right under Color Management, at the sub heading "Color Handing", change the drop down menu just below that to "No Color Management". Click "Print".

5) Now when the Epson print Dialogue box comes up, also choose "No Color Adjustment" there. Print the target.

6) Measure your target with the Spyder 3 spectrocolorimeter and save your profile.

The next issue I see then is how you're printing your images:

but when I decided to print with this new profile, directly from the datacolor software, turning on NO COLOR ADJUSTMENT the result was terrible (again dark)

Incorrect. Once the printer profile has been made, something has to tell ColorSync about each device's color footprint. This is where you DO need to use your profiles.

1) Open whatever image you want to print in Photoshop. If it already has an assigned profile, let it open that way. Or if you prefer they convert to your working RGB space, you can do that too. Print the image.

2) Now for the really important part. Color management must be applied only once! Either in Photoshop, or in the printer's dialogue. So do either step 3 or step 4, but NOT both.

3) In Photoshop's dialogue, choose and set you printer per normal. At the right under Color Management, at the sub heading "Color Handing", change the drop down menu just below that to "Photoshop Manages Color". Under the next drop down menu, "Printer Profile", choose the profile you just created for that paper. Rendering Intent is up to you. I prefer Relative Colorimetric. Of the four, use that or Perceptual. Don't use Saturation or Absolute Colorimetric. Make sure "Black Point Compensation" is on. Click "Print". When the Epson print dialogue comes up, make sure to choose "No Color Adjustment". Print the image.

4) In Photoshop's dialogue, choose and set you printer per normal. At the right under Color Management, at the sub heading "Color Handing", change the drop down menu just below that to "No Color Management". Click "Print". When the Epson print dialogue comes up, choose ColorSync under the Color Management heading. You should get a secondary drop down menu to choose your printer profile. If it gives you the choices, set the Rendering Intent and turn on Black Point Compensation. DO NOT use any other settings such as color sliders or any canned settings such a "Vivid".