I purchased an Alaris30 Pro that had a model resin head filling error. I managed to get the heads to fill but now I can not get anything out of a pattern test. I’ve purged and cleaned the heads multiple times. This printer had problems at the previous owner and I know the service guy was working on it quite a bit before they decided to abort and buy a newer printer.
I noticed that there is a connector unplugged from the head area. I have attached a picture. Does anyone have a similar printer that can take a picture to see if this is normal? It has red/white/black wires. The tech marked these connectors with tape. I’ve seen equipment left like this after people work on it and I’ve also seen it like this because the connector is unused. I’m wary of just plugging it in, if I can find a mating jack.
A wiring diagram would be even better. I haven’t had much luck finding documents for servicing these. Thanks!
If you take the head out and run IPA through it is there any jetting actually happening? It would probably be better to make sure the printhead isnt shot before really messing around with the electronics.
Thanks. How do you get the head to jet material when it is out of the machine? When I do a purge, material does flow through the head into the drip area, so I know the jets are not blocked. My understanding is that both heads were replaced recently, they are stamped 2016. It is as though jetting is turned off. I don’t think that loose connector is viable, probably just a leftover from a different install version. And it looks like it is related to a sensor and I’m getting no errors. I also did a thorough search and there are no mating connectors of the same size.
I have run the pattern test and head alignment, no jetting occurring.
Does anyone have a service manual for these? Even if it is for a different model of printer, it could help.
If you remove the head, you can use a squeeze bottle of IPA with a nozzle to run IPA through . Are the rubber washers still still in place when the heads get removed? If they are not in there the head will not hold vaccum.
Unfortunatet there aren’t really any details like this in the manual, because issues like these are typically handled through a service contract.
OK, so that’s flushing the head. I was hoping you could actually turn them on. One of my other printers has a button in the maintenance software to turn the jets on. Does anyone have a guide to the maintenance mode? I’m extremely wary of experimenting with those functions. Had a bad experience on another printer…
I’ll check the seals, though I see the vacuum is holding steady (at 6?). My understanding is that poor vacuum would cause the heads not to fill?
If the heads are filling then perhaps its not a vacuum issue. The “Do Fire All” will jet material from the print heads in maintenance mode. I would move the printhead to the center of the tray and put a paper towel down underneath them. This is getting into an area where it may just be easier to call up Stratasys or your local reseller. Maintenance mode is tricky and I wouldnt want you to potentially break the machine further.
Awesome, I will try that. Yes, I’m being very careful.
Fact is that the previous owner paid Stratasys a lot to try and fix it. They replaced a ton of parts. I wish I knew the details of what they tried. But when I got it, it had a model fill error, which I was able to eliminate. The printer isn’t worth spending too much more money on, it has a lot of miles.
I could not find “Do Fire All” in any of the maintenance menus. Maybe I have a different version or looking in the wrong place.
I’ve done this on a ProJet printer in the past. We just put a pan under the heads. I’ve attached an image of the “Heads Control” screen from the maintenance menus. I had this open while it was printing a calibration print. It has both “Liquid System” indicators as OFF. Is this normal?
Thanks for the help!
I’m just curious, how did you get on? 
I had a guy come by and run through the system and show me how to clean/maintain it more effectively. He thinks it just has bad heads, or possibly the board that drives the heads. I actually have another non-working Alaris that I pulled out of storage and got going so I am going to use it to swap parts to verify before I spend $3k on new heads.
Thanks for following up.
Would be nice to have a way to refurbish heads as I’ll have about 8 of them with various blockages.
