Printed WUB perfectly yesterday. Perfect nozzle check. Perfect prints til evening.
This morning, ran our standard nozzle check and channel #8 (white) was zero. #1-7 were perfect.
Ran an F1 clean, same issue.
One of my guys was staring down the front middle of the printer and saw that one of the white lines was kinked closed. We never go in that slot at all, so he used his finger to unkink the line.
There's no white ink in that line so we disconnected it, primed the damper with a syringe to pull ink up to it, reconnected and tried another F1. Still no #8 channel.
Replaced the damper with a clean one per @23spiderman
's damper process, reprimed into the damper, still no nozzle.
Anyone ever see an ink line kink itself? We did zero maintenance yesterday with the lines, just our usual daily maintenance (all cleaning). White was fine yesterday, but we didn't print a nozzle check at day end. From now on, we will add a nozzle check at end of day just so we can make sure we're shutting down with a perfect head.
When I look at line #8, again it appears there's no white in the line, even though we primed it up to the damper.
Head cleans are fine. We ran cleaning fluids into the capping station and it drains properly. The foam in the cleaning station turned "new white" after the cleaning solution, and after a head clean (F1) it returned to the usual inky blob that is usual, so the capping station is drawing ink as expected.
It's just white channel #8, the one that had a kink in the line.