This topic contains 3 replies, has 4 voices, and was last updated by 
BHudson 2 days, 2 hours ago.
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Printing a job and a message comes up that I need to attach a head???
Job keeps printing for another 4 hours!
Start new job and I am told that there is no power to the head and to switch off and attach a head, so I do as I am told, there was a head attached of course.
Turn it all back on after re-attaching head and giving contacts a wipe and and get a message telling me that the machine was turned off while the head was still hot and I am a naughty boy, another message tells me there is no head attached.
Now hang on a minute, how can I have turned it off hot, when there was no head attached and if there is still no head attached how can it know it was turned off hot?
Anybody in Australia fixing these printers now?Finally managed to find my spare head and it works, so no doubt that one has had it. Not happy about that, but I am glad I bought a spare this morning!
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This topic was modified 3 days, 10 hours ago by
Notewell.
I am no expert on head issues, but it seems to me these might be possible causes:
1) Pogo pins made intermittent contact resulting in the head not being seen
2) The head has a circuit board which may be intermittently failing - unlikely
Did Automaker show a shield logo in the printer icon? if so, this indicates communications have been lost to the printer
Locksmith, software developer, Jaguar fanatic
http://www.247guardian.co.uk/Andy is spot on,, its most likley the Pogo pins on the Head PCB. CEL found these to be an issue and updated the X-Carriage circuity board to have an updated Pogo Pin design. Sadly no warrantly claim or recall to update the X-Carriage free of charge.
To confirm this closely inspect your pogo pins with ALL POWER OFF!!. A bit of electrical contact cleaner might help.
I also suspect that if you attached your other head again on an off a couple of times you will find it will register properly. Head PCB dont fail that often in my experience unless you start some proper fettling with the heads 😉
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This reply was modified 2 days, 2 hours ago by BHudson. Reason: Removed erroneous and dangerous advice
Aerospace Engineer with a creative itch being scratched by Robox!
@nigelberry You can test your POGO pins by gently pressing them with a fingertip. They should move in and out with a firm resistance. There are four that are longer than the others. You are looking for one that sticks or does not move smoothly. DO NOT apply oil to the POGO pins. You should clean them with isopropyl alcohol.
If your printer was manufactured after February 2015 you should not have received the faulty POGO pins. If you did and your printer is under warranty the PCB will be replaced under warranty if they are a problem.
The most common cause of this behavior is the head retaining screw is starting to fail and is not keeping the print head attached to the X-carriage. You should open a support ticket so that CEL can assist and can determine if replacement parts are required.
The cause of this behavior is that the printer lost connection to the print head for a brief moment. I have seen this happen when the nozzle hits the print especially hard and the head retaining screw is starting to fail. Sometimes the printer can continue, sometimes it is not able to do so.
There is not likely any issue with the print head itself.
I operate two Betas and four Production Robox.
I am the US/Canada Technical Support engineer for the Robox.
www.hudsondesignlabs.com -
This topic was modified 3 days, 10 hours ago by
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