FB750 missing jets

[michsanford]

Hi everyone!
I've been having issues with my C and LC heads. The attached pic is from today.

It originally all started with a banding issue on anything that had cyan.
I have cleaned the heads, carriage rails, wiper rails, done auto jet calibrations, etc
I purge and purge and purge, and still get the attached results.

The odd thing is, after I do a missing jet replacement, it gets worse!! You can see that in the picture as well.

It may just be that my C and LC heads are bad.

I have an HP guy coming Monday, just wanted to see what you all thought..

 

[flyplainsdrifta]

did you just replace inks recently? I've had that happen in a bad batch of ink where there was starvation because of bent bag hoses or air bubbles in lines.

 

[michsanford]

did you just replace inks recently? I've had that happen in a bad batch of ink where there was starvation because of bent bag hoses or air bubbles in lines.

Hmmm, no, its been a while.

 

[flyplainsdrifta]

okay. thought id ask. mine literally just went down with a carriage encoder failure. waiting on hp service now

 

[michsanford]

okay. thought id ask. mine literally just went down with a carriage encoder failure. waiting on hp service now

ugh...I get that error as well. Maybe I will have them check that too when they come!

 

[wunder]

if there any problems with inks....then all heads with same color will be in trouble.......thats not from ink.
picture is very small and cant see it correct.....but seen be that full blocks of jets missing.....

to check: if under the Heads is ink drops....seen be thats a airleak...check the screws from PH 1st.