UCJV330 - Losing black nozzles mid print

[dinomaskot]

My UCJV330 starts losing black nozzles after couple of meters of printing and i get banding issues..
If i restart print, or do a soft clean everything goes back to normal..

Help please?

 

[Smoke_Jaguar]

When the cut-out happens, stop the print and cancel the job and quickly print a nozzle check.

 

[dinomaskot]

When the cut-out happens, stop the print and cancel the job and quickly print a nozzle check.

Did that.. Head 1 - random black nozzles gone

 

[Smoke_Jaguar]

Have you run your media compensation patterns/calibration for that media? Looks more like stepping than nozzle drop. Could also be head calibration, but that doesn't usually drift if setup right by the installer. If the printer is moved, it can change.

 

[dinomaskot]

Hmm.. haven't done Feed Comp in a long time... Could try that..
I've had 2 really light head strikes in the past month.. maybe that has something to do?

Here is the print from other day (30m long) when i first noticed this.. at first it was all good, and then it gradually gets worse and worse.. here is the image.. (dont mind the color diff. its supposed to be like that)

Thanks a lot for helping out Smoke_Jaguar <3