Blocked nozzle - one bar on 9900

1

Hey @walker

Got one blocked nozzle in the Cyan channel on my 9900 - just the one bar. Tried pair cleaning, power pair cleaning and service mode pair level 1 cleaning (the gentle one) - it’s not shifting.

nozzle_check
nozzle_check1920×1920 221 KB

ETA: Tried printing QTR-C-flush.tif and the bar is still missing, image below (same channel, just upside down):

1649278099664
16492780996641920×2560 291 KB

Any suggestions? What effect will this have on printing?

TIA

2

I replied via email I think, but this is indicative of not a de-lamination but a head that has dried crud on it. You need to do the following:

best
_Walker

1 Like
3

Thanks Walker, will get to it :slightly_smiling_face:

4

Worked a treat @PiezographySupport, thank you again.

Have a fantastic weekend :slight_smile:

5

Hi Walker. - I’m having a similar issue with my 9900 where a single bar is missing in the PK channel. I’ve tried everything described above and the clog persists. Is leaving the print head parked over the piezoflush-soaked paper towel for a few minutes to soften the gunk a horrible idea? A fair amount of ink came off of the print head using the “shoeshine” method, but this one little bar seems especially stubborn.

Or if you have any other ideas I would appreciate hearing them.

Thanks, as always.
cjh

6

Dear CJH, this is most likely not a clog but is a de-lamination of the head.

sorry for your loss
-Walker