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eyeglass sized flat head screwdriver. if you are looking at the clip from the side, it is roughly a "C" shape. at the top and bottom of said C, there is a part that narrows. put the flathead in there and twist, the clip should loosen enough to pull off with tweezers. Put vinyl in it before you...

the bn-20 doesn't have a heater, so ink can pool a bit before it dries. it also prints horrifically slow in comparison. You can try turning off the heat and printing at high quality to emulate the same printing conditions as the BN-20. You can hit solid colours at VS speeds as well, after...

putting the dampers on the wrong stems, inverting black and cyan, scratching the head face putting it back in... i think that's everything...

losing the ground strap, losing the sled mounting screws,losing the bias spring, breaking a stem putting the dampers back on, not having the cables in all the way, forgetting to turn off/unplug the printer and touching components on the head (you'll feel a buzz, and likely blow something)...

Something is causing the magenta (or light magenta) head to fire. It's usually the cables if it's not doing it 100% of the time like in these pictures. head cables themselves, or the annoying-to-change long cables from the print carriage board to the head board. Outside of that, a broken head...

last time I saw one being used in VW was about 5 years ago, it was an i1. Using it for linearizing profiles, or colour switching?

looks like light magenta ink... maybe the cart was filled wrong? or have you switched ink brands recently?

yeah, held on by one screw behind the head carriage. be careful getting it back on, it's slot mounted, so it can be mounted at an angle, or too far one way or the other that it rubs against the strip. there's a fair enough gap to have it somewhere in the middle and be fine.

looks like media skew. pinch and grit rollers may be clean, but is the rubber on them soft, or are the springs pushing down with enough force? both those change over time. An easy way to gauge if skew is the problem, make 0.75" circles, as many wide as the media allows, and 2 rows. should be...

home position sensor? black plastic "U" on a small PCB behind the tool carriage when it's capped. there is a piece of metal that goes into the sensor, letting it know it is or isn't in home. if the heads are seperating, the lock is fine.

Those are head lock, and limit sensor errors respectively. Usually doing a proper limit position initialize takes care of those.

sounds like dampers losing their seal, they tend to just flow rather than hold the ink steady. if a or all dampers are loosing a seal, every time the machine runs a cleaning it'll get worse, you could probably see air leaking into the ink lines during a cleaning, especially a choke cleaning.

It's 2.2mm on a pro3 for low head height, which should be the same as an sp-300. I bought a plate of aluminum at as close to 2.2mm as i could get from a local metal shop. loosen the allen bolts holding the head carriage to the linear bearings, drop the heads on to the metal plate and tighten. I...

ink pooling under the cap, like on the metal? These heads are all about the cap, whether it is aligned, the rubber is soft and even, the spring is still...well... springy, the lines are free of dried ink and the pump is flowing freely. a single medium clean should spurt through a good amount...

i find the boards to be pretty binary, they work or they don't. Having the head firing at least something is a good sign. The VS and XR series printers ink lines are hard to fill up after they've been emptied... remember when it was installed? its like 45 minutes of pumps clacking away. Choke...

sounds like a blown fuse, or a cable not inserted all the way in. A blown fuse isn't a huge deal, though they are tricky to solder on. What causes the fuse to blow is the concern. hopefully its something like a loose cable, new fuses and reseated cables and you're back up and running. If the...

cross contamination, usually from the cap. not necessarily broken, could just be misaligned or the drain lines contricted/blocked. flood the cap a few times with cleaning solution, run a medium clean and see if it improves. If it looks the same, it's probably not sealing.

what ink config is your VS running? does it have white or cleaning ink running? That looks like media contamination, but shouldn't be across 2 different brands. How's the dust in your print area? unrolling vinyl generates a good amount of static, and will pull anything floating around onto the...

gouged cutter protection strip, chipped blade, stiff bearing in the blade holder are the usual suspects.

chirping only cyan, at around the same place... electrical for sure. But the cause? gets fun. one, update firmware. This isn't "block printing" per se, but a firmware update fixed that a while back. two, pop off the top cover (the biggest one) and watch the ink lines as the printer is...