Try to remove ground to any hybrid (5V and HV) chip and you ruin it instantly.
Anyway you shouldn't just apply power without ensuring all inputs are in a certain level - 0V or 5V. And you shouldn't try to fire a dry printhead also. Its protections are for ESD or transient spikes not for miswiring it.
Search found 77 matches
- Thu Mar 30, 2017 5:44 am
- Forum: 3DP printing
- Topic: Hacking the Xaar 128 printhead
- Replies: 365
- Views: 1351203
- Wed Mar 29, 2017 7:08 pm
- Forum: 3DP printing
- Topic: Hacking the Xaar 128 printhead
- Replies: 365
- Views: 1351203
Re: Hacking the Xaar 128 printhead
Unfortunately the printhead electronics must be very sealed and waterproof to work properly. I think it's potted in resin and you can't open it. Working with TTL signals so close to 35V is very tricky. Maybe a ground went loose at some point and this burnt the interface, or maybe you still have a lo...
- Wed Mar 29, 2017 6:16 am
- Forum: 3DP printing
- Topic: Diy inkjet PC software
- Replies: 6
- Views: 15769
Re: Diy inkjet PC software
Thanks! This isn't quite as intuitive as sending raw data, but it's a very good ideea to start! I'll have a look into it!
- Tue Mar 28, 2017 5:48 pm
- Forum: 3DP printing
- Topic: Hacking the Xaar 128 printhead
- Replies: 365
- Views: 1351203
Re: Hacking the Xaar 128 printhead
What do you mean: contradictory? Can you be more specific? They say it works both with aqueous or solvent inks. Water would be an aqueous ink I guess. EDIT: while I was preparing some dry new sponge-type transparent refiil cartridges, I filled one of them with distilled water and a small amount of i...
- Mon Mar 27, 2017 3:32 pm
- Forum: 3DP printing
- Topic: Diy inkjet PC software
- Replies: 6
- Views: 15769
Diy inkjet PC software
I started to experiment with xaar128 printhead. I wonder, after building my setup, how would I send the bitmap data to the printhead. I'll use an Arduino due to control the printhead because of its large native RAM (96kB). I started to build the arduino firmware and now I need a nethod to transfer t...
- Thu Mar 23, 2017 6:10 am
- Forum: 3DP printing
- Topic: Hacking the Xaar 128 printhead
- Replies: 365
- Views: 1351203
Re: Hacking the Xaar 128 printhead
Thank you! I was thinking to print on a piece of glass!
- Wed Mar 22, 2017 6:49 am
- Forum: 3DP printing
- Topic: Hacking the Xaar 128 printhead
- Replies: 365
- Views: 1351203
Re: Hacking the Xaar 128 printhead
I started to play with an used xaar128. Can I run purified water instead of ink while I make some tests? I don't have capping yet and I just wish to make sure it is working and I can control it. Water won't make deposits and no cleaning cycles required, right?