HP 365 LC ink ran out during printing and now I can't get the LC head back

[stickerhed]

The LC cartridge never indicated it was out of ink, it just stopped printing LC. I put new ink in and still can't get the LC head back. I've done a number of cleanings and printed large boxes of light blue. I've even removed the print head and wiped the nozzles with distilled water and a soft cloth. Any help would be appreciated. Right now about 60% of the nozzles are working. The print head is still under warranty. Neither the ink or the print head are out of date.

 

[balstestrat]

Warranty the head.

 

[ddarlak]

Keep printing the blue paper patch, it takes a long time, maybe 8-10 feet but it pushes through. Did it with a magenta head in HP 315 last year.

Edit, the head is shot, need new one but it will eventually flush.

 

[ToTo]

What is the weight of the PH? 64gr it should have if well filled with ink.
Both Lc and Lm stopped printing? Then I would replace the head.
If not, I guess you might had messages popping up about pressure sensor misreading in the past. I would replace the PIP and calibrate.