huntersdad wrote in post #18768932
So, I finally have my screen and prints matching in brightness, but have run into another issue. They prints have a distinct green tint that the computer doesn't have.
Computer is a 2015 iMac calibrated with a Spyder 5. The printer is a Epson Expression Premium.
Any thoughts on correcting this?
Which Epson Expression Premium model are you using? I ask because there may be ICC profiles for your printer from Epson (for Espon papers), but I am not familiar with the Expression line of printers to know if these exist.
Take the time to remove your display form the equation by printing a reference image directly to your printer through the application you use to print (PS, LR, etc.) - I use the one with the bottom row that has people (adults and babies) on it, listed here:
http://www.northlight-images.co.uk …ownload-page-photography/
Download the AdobeRGB version, open it in your application from which you print and print it with the settings you are currently using - do not make any changes to the image, just open it and print it. It is a known reference image with neutral neutrals, saturated colors, etc. The output from your printer should reproduce the colors and neutrals in the image faithfully, to the best of the printer's ability. If there is no green tint in the printed image, then the printer as you have it set up to manage colors, is doing its job correctly and the tint may be creeping into your images because your display is not properly calibrated and profiled, leading you to make editing decisions on the display that look correct on the display but are actually causing green to be introduced because the display is too magenta or red. You can use the color sampler or similar tool in your application to read the neutral values in the image - the neutral grays may look like they have some hue in them on the display, but when you roll the sampler over them, they will read neutral, or near neutral (effectively R=G=B, or in Lab, a=b=0). If this is the case, then suspect your display as being the culprit.
If the printer outputs the reference image and the print has a green tint, then the "printer manages colors" needs to have some settings tweaked to counter the green tint the printer is introducing - there are usually print driver (Epson) controls to permit you to do this. Once you remove the green tint using the printer controls, save that set-up and you should be good to go. All of this assumes that you are letting the printer manage the color, not a printer-paper profile. There is nothing wrong with letting the printer manage color, per se, but you just need to verify that it is doing it correctly.
When printing, the print that you produce, viewed under the light in which you judge your prints (daylight, for example) is the ultimate reference - if your printer is set up properly, you should be able to make a print without even turning on your display (in theory) if you let the printer manage color. By printing a reference image that we know is "correct" you remove the display from the equation - your display should match the reference output. I do not know what steps you have taken to work with in a color-managed environment, but if your printer-paper combination does not have an ICC profile to help color-managed programs convert the working image into the printer-paper color space, then you need to 1) find an existing ICC profile for that printer-paper combination, 2) make a profile for that printer-paper combination using your spyder or 3) let the printer manage the color (not PS or LR or some application that will require a printer-paper ICC profile). Remember that you will also need to specify the paper type (glossy, matte, etc) when you print, regardless of whether you let the profile or the printer manage the color. Specifying the paper type essentially lets the printer know how the ink should be deposited on the paper.
kirk