Well mine sure is not dry air, to the contrary I have had to suspend printing until I get the humidity under control. Here in Vietnam it can get high even here high on the mountain at 5k feet above sea level. Added a dehumidifier, but that was not enough. Need to take out the voltmeter and track down the problem. Thanks for the suggestion.
Just checked mine (240v machine) With a probe, nada. could be a leakage in the PSU. Iphones and others are renowned for ac leakage. Hopefully its just your outlet.
Had the same problem.
After a lot of investigations I have found that the earth socket was disconnected
Have you check your wall socket with multimeter ?
Thanks for all the replies. Yes it was the wall socket. I took so long because I was afraid of finding that and having to repair the circuit. I’ve moved the printer to a new spot and the problem is gone, and I took a multimeter and the socket has a bad ground. Now I have to trace that down… Thanks for the input.
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Thank you for letting us know what it was and that you were able to fix it. Glad it wasn’t the printer, it would have sucked to have to deal with support and maybe wait for a new printer to be shipped.
Here is the outlet. An outlet tester says “Open Ground” on either of the receptacles. There is a ground wire attached to one, everything is wired correct as far as I can see and other outlets on this 15 amp circuit test correctly. Any ideas? I’ll call an electrician next I suppose. Thanks for all the help team.
To be considered as wired correctly, at least as far as the ground is concerned, the incoming ground wire should have 3 bare, or green or green/yellow striped wires attached to it. One to each outlet and one to the box since it’s metallic. Since the lone incoming ground wire is attached to the frame of one outlet and both are screwed into a metallic box, one could argue that “it’s grounded” but it is not code.
It looks like the hot and neutral colored wires are connected properly. I use the saying “lighter, whiter, wider or otherwise identified is the neutral”. The white wire is connected to the whiter screw which is connected to the wider slot in the outlet. It’s still possible that they are swapped somewhere upstream but you say it only shows open ground so it’s not as likely. What is more likely is that this outlet was patched into an existing circuit and that circuit either does not have a ground or the bare wire in this cable was not connected to the ground circuit at the source. Houses wired in 1967 did not need to be grounded per code, it wasn’t until 1974 that that requirement came into effect. Older homes may have armored cable where there are 2 wires in a spiral outer metal sheath or they may have 2 conductor wire in plastic similar to what you have there. The armored cable, or BX cable, could use the outer sheath as a ground conductor but it wasn’t always connected Interestingly, if the ground wire shown here is not connected at the other end, it may develop a voltage potential due to capacitve coupling because it’s running in parallel with the hot wire. It’s not a lot but it will give you a good tingle in the right circumstances.
Thanks L-Mike. These outlets in my garage look like they were made after the original house given how they move through the drywall. My guess is that while other outlets look good, this one has a problem where it was tied in. Appreciate your input. Hopefully I can pay it forward as I become better at this 
Since there is an “earth” wire, likely it’s not properly connected on the other end. I rented apartment a few years ago. When I moved in, I had removed quite a bit of mains sockets to fix the wiring. Some missed earth connection, some did not have power on them at all. Wires were mostly there but work was so sloppy some wires had no enough of insulation removed or simply were not inserted into push-in connectors far enough. 
It was a fresh wiring job btw, after renovation only a single tenant ranted it for a short time before I moved in.
Years ago I bought a house that had been built by a guy who owned a big commercial equipment repo company. The house was built, to all appearances, by people who had to choose between doing work on the guy’s house or having their machinery repossessed. Loads of problems. The major one being the wiring. Literally every socket was wired incorrectly. Either hot and neutral reversed or no earth ground. I had to go through the whole house. Every single stinking wall plate. And it wasn’t just getting the wire colors right. I had to buzz out each wire back to the panel because some were reversed there and not at the socket. Even found a few that switched in a junction box.
Pretty much every consumer device nowadays has multiple certifications, UL, CSE, etc., or it’s built from parts that have those certs. They’re tested to make sure you can’t electrocute yourself when you use them. So if you can feel current on the chassis, it’s almost certainly a (dangerous) problem with the outlet.
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yeah I feel the same way. I’ve stopped using the outlet and I’ve called a couple electricians.
They look so surpised!
For anyone reading this thread. I had the exact same issue that started out of nowhere, it was not static build up, also was not the grounding in my house. When I put the voltage detector the whole box would electrify when it was turned on. I tested the power supply, negative ghost rider. Checjed the ground and connections. All good. Had the electrician come to the house, all good and up to code from the mains through the house. I am from the US but live in Ireland, so a 230v system is much different here and UK which dont allow outlets in bathrooms due to the.moisture levels in the air. So i looked at the wire and noticed the power cord that bambu shipped with it was a UK powercord. Didnt have the 3rd prong like in the states or Ireland, also noticed all this metal fittings on the outside of the plug. I went to the PC store and bought a PC powercable with the Irish plug which was fused plugged it in and problem solved, no more electric housing. Tested the wire itself and found it was substandard as far as shielding. If anyone else has this issue and your sockets are actively grounded and tested with the outlet tester, swap the powercord for a PC or UL tested powercord first before going through the trouble of taking the back panel off which is a nightmare. Hey bambu, dont worry about tangled filament, fix your powercords before you get someone with a heart problem gets a shock they cant recover from.
I think it’s a bad problem, the earth wire must protect the device and
not to flow electricity to ground that was leaked all the time.
I had a shock too, and I have a bad heart, but still alive.
I will check my wires too now, before I’m off the forum forever…
Don’t see how it can have UL/CSA cert without a properly grounded chassis. But even without an earth ground, the chassis shouldn’t be floating at a high enough voltage to shock you. For that to be the case, I think there still has to be a fault in the wiring somewhere. A low impedance fault on neutral, or a “ground fault” (neutral and hot are reversed, so an ungrounded chassis will ride on the “hot” leg voltage). This latter is a common issue with outlets that don’t have a 3rd earth ground lug. Anything plugged in will work fine until the chassis ground finds a path to earth ground, which if it’s you, you get shocked.
Not being familiar with the power sockets/cords in question, is the cord “reversable” like a two-prong US plug that can go in to a receptacle either way (unless it’s keyed with a fatter prong so it can only go in one way)? If it is, plug it in the other way around and see if the problem goes away.
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Well i had this happen this morning and mine was tne barefoot on concrete put shoes on and issue went away lol
PSA: Don’t touch to the back of the bed while the bed is heated. Got a nice shock from cleaning filament from the bottom of the back threaded rod and and touched the underside of the bed (the wiring is not exposed, it was something else). Not sure what it was, but it didn’t feel like touching mains or anything like that, just very unpleasant.
Btw similiar thing happens if I have my Macbook on my bare legs and I touch a phone that’s also plugged in - sometimes it’s a tingle, other times, like when only a corner touches me, I get a nasty zap. And that’s with original chargers… Those things are just leaky.
You may want to have your outlets checked sounds like they may be wired wrong.
If you mean me then no, that’s just what sometimes happens. It’s on the same outlet, even different chargers do that. All original Apple.