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The inks were bought mid 2017 and opened later that year. They were stored inside their original 100ml bottles inside a cupboard in my office. Desiccation would increase viscosity (glycerol and other humectants don't really evaporate), so that would not be it. Biological contamination could be...

It turned out to be an issue related to ink viscosity. Adding 10% glycerol to the magenta ink solved the problem completely :) When the printer is in standby, the head is parked right next to the wireless module which gets relatively warm. The increase in temperature must have pushed the ink...

Correct, and I am not concerned about minute differences between printing modes when there are major (hopefully ink-related) issues. The scans from the PF adjustment menu are basically single-pass prints, so that's as unidirectional as one can go. I did just do a short test and both uni and...

So it seems the P50 and PX720 driver are slightly different, then. I have not checked their uni versus bidirectional printing performance yet. With the R3000 I can see absolutely no difference between high speed on or off.

Unidirectional printing makes no difference. The paper feed adjustment patterns I scanned are printed in a single pass, anyway. All diagnostics look fine, all adjustments are ok, including H and V head alignment, head tilt, bi-dir. alignment and paper feed. Must be the ink...or if I have really...

That option or something similar does not exist in my P50 or PX720 driver. That might help to avoid overinking my papers. Let's see if that works!

I think microporous media have very limited dot gain, at least from what I can see in my microscope images. Both the dye and pigment inks have the same dot size on the same paper. But yep, the lack of technical data on those papers is frustrating.

Sure, they are different, but I think a comparison is completely valid. We only use pigmented inks because of their longevity benefits. Everything else is better with dyes (for photo printing on coated media, at least). - Dyes are 100% soluble, so clogs are definitely less of an issue. - No...

- Banding - Here we go: Nozzle check after cold start Paper feed adj. after cold start Nozzle check after 2 hours on-time Paper feed adj. after 2 hours of on-time I suspect ink issues as well, but the nozzle checks look identical to me. Inktec is relatively cheap, so I use them for...

I did a similar test a while ago, mainly to check why dyes in my Epson R3000 produced smoother looking prints than pigment based inks. Pigment-based ink Dye-based ink A few things I noticed: - My pigment cyan has a higher optical density than its dye counterpart (= darker) - The dye...

Did some more experimenting this morning: heating up the printhead area of the printer in its "cold" state produces the same artefacts. Further heating (top printhead at +- 40 deg. C) produced several missing nozzles, first in the magenta channel, followed by all other channels. @ISF: I'll...

Hello fellow printer addicts, I am experiencing a rather strange issue with my Epson PX720 (basically a miniature Epson 1430): when printing in Photo RPM mode, I get random magenta stripes in medium-gray areas. They are barely visible when I print right after switching the printer on, but...

This is incorrect. Light inks have less pigment loading compared to "normal" inks. Pigment particle concentration differs quite a bit depending on the ink recipe and colour, but in general it lies between 5 and 10%. You can find a lot of detailed information if you do a patent search

Some firsthand experiences: I own two Epson R3000s. One of them is dedicated to PK printing on RC papers, another one was given to me and has the (in)famous black ink leaking issue. No problems with the original PK printer as I never need to switch black inks. The other one had 100s of ink...

Thsnks for the replies! I'll hold off for a while then :)

What would you consider a fair price? It seems prices are increasing lately...aren't they?

Guys, I am looking for a source of Fuji dl dyes. What's the best option for those of us in the EU? Ebay.com has them priced over 350 euro for a cmyk set, shipping included..rather steep. Thanks a million!

Sure, the distributer is http://www.vyreco.com/. In the meantime I also found a local webshop selling Inktec Powerchrome K3 inks in 250ml bottles: peplogar.com. I would appreciate it if you could mention my name when ordering from them. I also contacted the Czech distributor, but their shipping...

Well, I´m a bit surprised how difficult this is. Last try: I need to sell 2 more sets of 8 x 100ml to make this group buy financially possible. Price per set is 50 euro + shipping, which is really cheap for a proven quality ink. I will throw in *free custom-made ICC profiles* for your favourite...

Still 4 sets available :)