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I may have found the problem, the printer driver. My Epson driver is version 9.80, this on my Mac running Big Sur, but I see on Epson's site that version 12.62 is available. I would like to update, but I know that there can be issues with firmware updates locking the printer when using third...

I'm using my Epson SureColor P400 on my Mac with Big Sur (11.7.1), and I get the error "Epson Printer Utility 4 cannot be launched". According to MacRumors, the Epson Utility does not run on Big Sur. I can check ink levels, print test pages, etc. but I need to get into the utility to change the...

I had the same issue, my Apple prevented the program from running. Going into the Privacy and Security Settings was the work around. Inkjet Plumber shows up in the menu bar along with Bluetooth, Displays, etc. I just installed it today and ran two test, it appears to be fine. Inkjet Plumber did...

Success at last! :) After more than a week, I was finally able to get my P400 printing again, mostly with the help from those who chimed in on this thread and a couple of YouTube videos. The attached nozzle checks are the two most recent. I think the turning point was the technique of gently...

Finally some improvement! I found a YouTube video here, it has you using a syringe to push air through the cartridge breather hole. I tried it and for the first time all colors printed including about half of the bars on the troublesome PK cart. Yellow and Orange are now back to printing without...

Thanks for your patience with my inexperience, here is where I am. I just completed 10 full color 8.5 x 11 prints, the top nozzle check is where I was before the first print. The middle nozzle check was after 5 prints, followed by the final one after 10 prints. Before I initiated the 10 prints I...

Thanks for the suggestion, however it did not make a noticeable difference. The top nozzle print was after printing 10 test patterns, I then proceeded to do a Epson cleaning, the bottom nozzle print was after the cleaning. Before the cleaning, the orange and PK and quite are bad, after the...

Yellow and MK Black appear to be okay, hopefully that means delamination is not at play here. The first time I flushed the heads with PiezoFlush, the syringe was very difficult to push, it finally moved but very quickly and all of the fluid was injected immediately. After that I was more...

Yes, I did do similar flushing, I used the instructions as posted here, from Inkjet Mall which is where I purchased the PiezoFlush. The video that you posted is actually a little more straight to the point, plus there are many very helpful comments. One such comment said that it took about 100...

So where to I go from here, are there any other options to get the clogs cleared up? I'm in unfamiliar territory, never having clogs anywhere near this severe before.

I started working on getting the printer back to good working order about four days ago, magenta, red and PK all showed all, or almost all bars not printing. Using the procedures that come with PiezoFlush at first made the problem worst. I kept at it, cleaning the print head with PiezoFlush and...

I have spent the last two days trying to undo clogs on my Epson P400, the printer sat unused for a month or so and 3 or 4 of the colors were almost totally blocked. I used PiezoFlush to clean underneath the print head, and cleaned the head using PiezoFlush and the dummy cartridge that comes with...

I still can't get refillhouse to load, browser just stalls. What I'm looking for is a high quality aftermarket cart, would be used in my two MX922's. These printers, along with an old high end HP laser printer, get general everyday use. I want to avoid refilling, that is what I do on my Epson...

I should clarify, I have had a couple of Canon's with this issue, one of my current MX922's is exhibiting the issue now. Rather than spend time and energy trying to fix it, I'm moving to a different printer and want to avoid this happening again. So, starting from scratch with a new to me...

From a 2020 thread concerning fuzzy prints here on this forum, Stratman gave this response, "Magnifying the nozzle check there appears to be early signs of splitting/bowing of the vertical lines in the latticework of the Pigment Black nozzles. This is believed due to overheating and warping of...

Anyone have any suggestions on this? If not to get it working, any information on what might be causing the problem. I have a parts unit and if it's not too complicated I could swap out a part or two.

I last used this printer about 8 months ago, it had the B200 error and I stopped using it. After coming across a new suggestion to fix the B200 error I powered it on by plugging it in. I plug in the power cord, wait a few seconds and can hear the mechanics working for several seconds, then the...

Well, the issue appears to have fixed itself. After two cleanings I still can not get a perfect nozzle check, however the blotches on the GO are no longer an issue. Attached is the final nozzle check results, note that photo black is still not perfect, but the GO does not have any color...

Yes, the 2 nozzle checks that I posted were printed consecutively, though maybe an hour apart. Nothing else was printed during that time. I will check that in a bit, probably later today. Actually, since it was a couple of weeks ago, I don't recall exactly what I was printing. I tried getting...

This is the first time that I've printed in about two weeks, the nozzle check was fine at that point. I'm attaching a fresh nozzle check, this time on a fresh sheet of paper. As you can see, the blotches are not in the same location. This nozzle check was the very next thing printed after the...