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It could be that a paper sensor would not recognize a pre-printed sheet anymore as a blank sheet; I never tried that. 8 bit vs. 16 bit - it's a matter of internal calculations - the profile correction value for every image pixel needs to be calculated from the profile tables, this value need...

It's the visual impression at the end which counts , and if the profiling passed without errors differences in prints should be limited to very small color ranges , and you would need some monochrome area with such color as well in that image at which you could see that difference.

Yes, tlhis last 9880 Epson Semimatte profile looks pretty much o.k, gloss related problems may show up earlier on glossy - semiglossy papers. I regret but I threw away those offending papers long time ago already

This is the gamut plot at L*=13 for the 3880 PremSemimatt profile of June 29/24, it looks pretty normal every image pixel has a particular color which is a mix of the CMY base colors, and the mix ratio of these need to be controlled and adjusted because the CMY base colors are not...

It's how the paper surface is reflecting the measuring light coming from the spectrophotometer, and the vast majority of papers can be tested with the standardized 0/45 deg light path in the photometer before the light hits the sensor. But as mentioned a few - a very few papers come with a...

Yes, changing the patchcount can get you around the problem , but the first problem is that you need to identify it - and the number and type of tools is very limited for us as non-commercial users. I was testing that problem-paper longer time ago and I changed the patchcount - I don't...

The i1Pro1 came in two versions - a regular one and a UV-cut version - similar like the ColorMunki spectro. The UV-cut Pro1 has a small circular UV filter disk in front ot the sensor, such filter is supposed not to block visible light but only UV-light which is close to the visible light. The...

Please do a rescan; @pharmacist is addressing scanning errors. Yes - they are there , they may be caused by some variations in manual scanning speed and/or pressure, and if you may get different results (with tolerances outside the equipment spec) it is a handling problem. I'm using the i1Io...

I'M not an ArgyllCMS user but had a look to the finished profiles - yes, the gamut is pretty good overall - with OEM Epson paper and Epson inks, I'm comparing here just the -smatt type with a profile which I created longer time ago for my P7600 , discarded in the meantime. I was using other...

I'm not clear about your remanufactlured ink - where do you get such ink ? It is not typical to 'downgrade' a printer when you want to use non-Epson ink, you need to use cartridges which support your requirements - you either get cartridges inl. inks from other companies which you can directly...

Since you just recently got the ET18100 I would propose you to contact Epson for a possible repair under warranty.

I would not generally tell you not to buy a used printer, but you would need to do it with some knowledge and care since it is some larger investment than a typical desktop printer. I bought a 24" Epson P7600 long time ago, I went to the seller - with a notebook and the driver installed and the...

I would be pretty reluctant to buy a printer in that condition, everything in the range from an easy cleaning to the replacement of the printhead could be necessary. I think it should be the job of the seller to offer the printer in working condition. What environment is the printer coming from...

I mentioned above that I sarted the TC-20 printer with dye inks - the GI-53 Chromlife inks of the G650. I profiled various papers - reel and sheet material - here is a comparison of profiles for the ET-8550 and the TC-20 with dye inks on the Aldi Netbit glossy paper, These are the 2 gamuts...

I would propose that we review the terms and rules of the forum and check if and how the mis-use, the copying of postings to other commercial sites is restricted with clear copyright rules and restrictions. BCH Technology is a commerical site and and tries to boost their image by supporting...

Let me just make a comment to one of your questions Smearing happens if the platen gap is to small , or the paper too thick or curls or the nozzle plate is contaminated from the cleaning unit not wiping off the nozzle plate anymore correctly, that would require to clean the cleaning unit - to...

The ET-8550 is a pretty good printer indeed but I would not focus on 'General print quality' since there is no clear definition of it at all. You should get some understanding of parameters and definitions like gamut you can acheive with a particular ink/paper combination, and this within a...

I kept this fading test running for another 2 weeks - now a total of 4 weeks of outside exposure, the test is just confirming previous statements that OEM inks perform best on OEM papers. This test does not include 3rd party dye inks like InkTec nor any pigment inks - no OEM pigment inks nor 3rd...

The printers typically recommended for such jobs are the Canon Pro 300 or the Epson P700 as A3 printers, but you might consider to upgrade to a larger format which the Canon Pro 1000 or the Epson P900 can support. You are offering 11 x 17 inch poster prints on thick poster board - this might...

There is a rather helpful utility available - WicReset - which gives you 4 different intensity levels for the cleaning cycle and a complete ink charge - the same the printer does when you initialize the printer. You may run a stronger cleaning ccycle to see if anything changes in the nozzle...