I’m beginning to think that possibly it could be a faulty GE printhead and/or faulty cartridge. I’d start with cleaning the printhead and contacts, and if no joy, replace the printhead.
It may sound excessive, but I’d pull the printheads and the carts, then do a startup. The printer will ask for the carts first. If it was my machine, I’d put in a replacement GE Cartridge, then the rest, then the printer would ask for the printheads next. Given the issue discussed, I’d put in a new GE printhead along with the others staying as they were.
The printer will initialize and ask for a sheet for printhead alignment and proceed with that. If it does work, great, if not, it will be a reseat and printhead alignment which is good to do occasionally anyway.
Before I print, after such a heroic measure, with paper loaded, I go into the embedded web server> service support>printer information and go to current information checking to see that the gloss enhancer is on. Then I check event logs to see if there are any errors. After that, I run a solid color patch the size of the page and print borderless to force full page coverage even if in economode. I check that print then try a standard print in full coverage mode.
I don’t know if I’d assume this is a software only issue. I can think of a number of ink supply scenario issues that could cause this problem from print mech board to bad cable, etc. If you have a current HP care pack, it might behoove you to stick with it and use tech support to find the issue. There should be a district manager/supervisor for your area and if you are not getting satisfactory results, they should be in touch.
If it was my machine, I’d ask to have the issue escalated.
At this point, that’s about all I’ve got without putting my hands on the printer and that’s not going to happen. I hope the retelling of my experiences will prove helpful to you in some way, and I wish you the best with getting your issue resolved.
Mark