JV5 capping doesn't go down enough

[Robert72]

Sometimes (not always) when I try to start printing, the capping station doesn't come down enough to let the printhead plate pass to the printing zone, so it hits the NCU chassis and stop with an error.

Anyone know what can be damaged? could it be the capping sensor?

Thanks
Robert.

 

[bmw_ante]

Are you sure it is not just dried ink that is making the capping station stick in a position?

 

[Robert72]

No it's not that thing. Thanks Bmw.

I think is a problem with the NCU/DropBOX height adjustment. That adjustment is into the Capping Adjustment in Maintenance Mode. The machine does it automatically and I cannot set the height manually.

Sometimes the head plate strikes and sometimes works. I'm trying to find if there's any encoder to read the NCU actual height position, but I've not seen it.

Please, if there's any JV5 guru here tell me where to look for, as this is desperating.

Thanks again,
Robert.

 

[Robert72]

By the way, the Firmware is V5.0. I don't know if it's related.

 

[Robert72]

Solved

Ok, i finally discovered that the camshaft wich rotates to compensate the head height was loose and it was not working, so the poor machine couldn't know the head height. So the capping position (relative to the head height) was wrong.

Now it works flawesly!!!