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And always pull gently!

Try doing this...

Why?

I expected to see this, but felt it was worth a shot. After doing some more research, I may have a different solution. There is an issue with VS series where something called block printing can occur in specific areas of the carriage. Roland's solution is an upgraded carriage board, which is an...

What was the reason for removing and flushing the head? How did you flush the head? Printheads are not typically removed for cleaning and flushing. They are very fragile internally and it is easy to damage them by flushing with too much pressure. In your case, the wrong ribbons initially...

What kind of ink system do you have, bulk or sealed cartridges. If a bulk system, check that the vent hole is clear. If sealed cartridges, is there ink in the cartridge? Seems like a dumb question, but sometimes cartridges run out, but the printer's ink detection system doesn't get triggered...

It's located on the backside of the print head carriage and the encoder strip goes through the U shaped part. When the printer turned on, there should be a bright red light emitting from it. To change it, power off. When positioning the new one, it must be centered over the encoder so the strip...

Do you have a service manual?

Oh boy, this is going to be a tough one. It seems that is a physical position issue, meaning it consistently occurs in a fixed area, as you stated in the beginning. As you have replaced the encoder strip, I think it could be one of two things. First, the encoder sensor could be getting weak...

Exactly what does your post have to do with the subject matter, which is a sublimation profiling question?

In addition to multiple scans, as suggested by Pauly, you might also try scanning at a slower rate, as the i1 samples at a certain rate. This would give you more samples per patch and might help. The reflectivity of the material is always an issue in sublimation fabric profiling, which is why...

Check to see if there is any play in the cut carriage. I recently fixed a cutter that was cutting horribly and it was simply the guide roller mechanism on the top having some play. Snugged it up and it was cutting perfectly. I would also clean the guide rollers and guide tracks, as a maintenance...

FYI, to get into service mode after the upgrade will require Peck2 software and Roland tech account credentials.

How did your repair go?

netsol, Sounds like you had a bad experience. Care to elaborate?

Those are difficult images to use to evaluate your issue. Please use the attached file and print and post pics. Many things can be evaluated with this image - color, alignment, etc. Print it in both uni & bidirectional please. We need more info on your rip settings - print resolution, heater...

Then it appears I stand corrected, at least as far as Epson cartridges go.

Holy cow, that is some serious shaking.

Concerning Marabu ink, I ran sublimation ink in both 5 Epson and 4 Mutoh printers and SS21 inks in 6 Mimaki printers for several years without a single issue. This was on printers that were running around 18 hours a day.

This thread will give you my experience and thoughts on recovering printheads. https://signs101.com/threads/roland-sp-540i-printhead.160842/#post-1494388