Greetings!
I thought I should post this and get some input from the forum community as I've been told by Epson that I'm the only person with this issue.
We have an Epson 7880 that we purchased 6 months ago, and I can't mantain this thing in gray balance to save my life. After calibrating the device to G7® method, I would notice a color shift after a couple of days. At first I was blaming the rip (ColorGate) but after careful evaluation I noticed that the drift happened one to two days after empty ink cartridges were replaced with full ones. What I noticed were variations in ink density, particularly the Cyan ink. Epson tells me that the variance between ink cartridges is less than visible, I asked for a delta E spec but they could not provide me with one. The delta variances I get on my gray patches range from 2-5 deltas.
In other words, if my HR patch read .80 delta E to the spec after the initial calibration, it would read 2.8 delta one to two days after an ink cartridge replacement. Is this normal with the UltraChrome K3 inks? Could the printer be causing this problem? I don't seem to have any missing nozzles. It makes no sense that I would have to re-calibrate after every ink cartridge change. The eye is very sensitive to neutral colors and these variations are certainly causing changes in visual appearance.
Any comments or suggestions will be appreciated.
I thought I should post this and get some input from the forum community as I've been told by Epson that I'm the only person with this issue.
We have an Epson 7880 that we purchased 6 months ago, and I can't mantain this thing in gray balance to save my life. After calibrating the device to G7® method, I would notice a color shift after a couple of days. At first I was blaming the rip (ColorGate) but after careful evaluation I noticed that the drift happened one to two days after empty ink cartridges were replaced with full ones. What I noticed were variations in ink density, particularly the Cyan ink. Epson tells me that the variance between ink cartridges is less than visible, I asked for a delta E spec but they could not provide me with one. The delta variances I get on my gray patches range from 2-5 deltas.
In other words, if my HR patch read .80 delta E to the spec after the initial calibration, it would read 2.8 delta one to two days after an ink cartridge replacement. Is this normal with the UltraChrome K3 inks? Could the printer be causing this problem? I don't seem to have any missing nozzles. It makes no sense that I would have to re-calibrate after every ink cartridge change. The eye is very sensitive to neutral colors and these variations are certainly causing changes in visual appearance.
Any comments or suggestions will be appreciated.