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I have used the snap in filters from R Jet Tek and they work fine, if your have really cleaned out all the gunk below the original screen. Why spend $1500 for a thermal screen removal and insertion tool. A large, round tip soldering iron and long forcepts will remove the screen. I made a...

I ran a printhead life test on three Epson 740 printers. One printer used only OEM ink cartridges, the second some ink I formulated in US made compatibles, and third using off the shelf Chinese cartridges. The sample size is not valid, but at the time it was intended to be a quick and dirty...

Let's address the issue of why an exact match is difficult to come by. Normally the formulation is patented, and specifically the dye or pigment dispersion is claimed. Yes I can use another dye mixture to match the colors normally within 1.5 delta E. The problem is the salts normally used to...

Rob, I have been making and testing inks for over 20 years. I believe all the OEMs and most high quality aftermaket suppliers use a biocide/anitoxident in their inks. This should prevent alge from growing in the ink for several years of storage. The only alge I ever saw develop was when a...