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You would have to measure color differences of prints printed either with a 24 bit color file or a 48 bit color file, and your measurements would need to be more accurate than reading variations of the instrument and color variations of the prints. You could take such measurements and calculate...

I'm now running the Epson T3100x 24 inch printer since a while - without particular problems or peculiarities, I had to replace the waste ink box once. The T3100X is a 4 color printer with dye inks - T3100X - or with pigment inks on the T3100. Such configuration uses a black ink which is tuned...

I'm looking to the 648 target sheet, and it's probably the same with the other files - they are stored as 48 bit RGB files, have you seen any benefit to start off printing the patch sheets with these *.tiff files , and not just with the common 24 bit (8 bit per color) files. ? I remember already...

some rants about the xRite business model

Please post the nozzle check, and the mentioned sample. Did you do a cleaning cycle - or multiple ones ? Are you using genuine Epson inks ? Please check as well the warranty status on the Epson web page of your country - or here .

The dye-pig comparison target reports a black level for the dye print of L= 4.3 1.06 -7.31, that's a very good black level as well, not every ink/paper combination reaches such level. the b-level with -7.31 is typical for dye blacks showing a cool blue touch. The gamut of the dye-print...

https://download4.epson.biz/sec_pubs/sc-p700_series/useg/en/GUID-40CAF397-4123-48C0-BEDA-F1C2B1DDA455.htm 'To print by increasing black density, use black enhance overcoat in the printer driver.' This is apparently not happening - one way or another - Epson claims that there should be some...

It's a kind of funny that the black level is improving from test to test - it's now at L=2.25; it's a very good level of the Epson Photo black ink on the Netbit paper. The question remains at which condition - ink - paper - driver setting - the BEO actually does a black level improvement. Or...

Well - yes - I'm a kind of irritated, the no-BEO profile delivers a slightly better black level than with the BEO option active - Lab = 2,29 -0.19 -0.32, but this remains pretty much neutral with the a and b values. It would indicate that the BEO option does not do any good - at least. I don't...

Thanks for the info, I'm reading a black level of Lab 2.67 0.37 -.03 for the Colormunki test, the i1Pro2 reads the same data. That's a pretty good black level indeed , with an (almost) perfect neutral tone; it would be of interest how much of that is contributed by the Black Enhance Overcoat -...

The profiles are very much identical; what printer, paper and inks were used to print the patch sheet ? The black point is pretty much neutral

Thanks for your feedback, it does not really matter if the air bubble takes 40% or 50% or 60% , it just should not be filled up.

The SC-P700/900 run with pigment inks, the ET-8550 with dye inks, their look on paper may be different. All these printers support B/W printing with the ABW - 'Adwanced Black/White function in the driver which let you easily do color tuning between sepia and cool steel blue. Be aware that the...

I don't see the need to clean the ink paths - the inks are colorwise very similar if not identical. I did ink swapping several times - I pulled the 'old' inks out via the dampers, this lets you get hold of all the inks in the tubes etc except a few drops left. And you pull the new inks the same...

The best source for such action would be the service manual describing all actions necessary . You may need as well an adjustment program, they go typically together. One of the sources could be 2manuals.com

I'm not getting any further feedback from the 'made in China' company link; they don't take Paypal and I'm not registered on Alipay - so much for that. I suspend the search for that lamp for the time being.

You are right, that's exactly how a pigment ink looks like

These lamps are quoted for 2.5 Volts, previous lamps with 3 V, and the overall power is unclear at this time. I opened an i1Pro longer time ago to check how the UV filtering is done - with a ring UV filter in the light path for those spectros to do M2 measurements. I'm currently waiting for...

The fading performance should always be viewed for the combination ink + paper, you frequently find statements that pigment inks last longer than dye inks which is just not correct as such a general statement. Wilhelm Research has published tests showing that an Epson Claria dye ink performs...

Yes, I was running the L805 with pigment inks for a while, that was a mix of Chinese inks which I used as well on a 24" P7600. I converted the L805 back to dye inks at this time, this took a while because of some stubborn nozzle problems coming from the pigment inks not going away.