Hi there,
I am having a similar problem. My G3200 is printing black, however there are some areas where the pirnter head doesn't print entirely with black. In other words, it is streaky.
Here is what I've accomplished:
I have performed the cleaning function of the heads multiple times.
I have performed the deep cleaning function of the heard multiple times.
I have performed the system cleaning multiple times.
I have performed a print head alignment (to see if the printer head was "off" slightly).
After each function I have printed a nozzle check test pattern. All the color bars are printing properly except black. On the black test pattern that looks like a grid pattern the same exact boxes are always blank. In other words, when I look at each test pattern that I've printed after each cleaning function and compare the test patterns it is always missing printing on the same exact squares.
To me this seems almost like a software problem.
I have had this printer since 2017 and have had many of the heads clog and performed the cleaning function(s), somtimes multiple times, and I've always been able to correct the problem(s). I have also had the ink absorbtion pads serviced and replaced. I would like to continue to use this printer, but I am unable to use it to print graphics properly with the problem that I am having. I can still print text just fine, it is only when there is a large area of black that I see a slight line of missing ink.
If I could attach some photos of the problem, I would so that people could understand this better.
I consider myself an expert computer user and can usually correct things by myself, for this I am at a loss.
Thanks in advance,
Jon
