I'm refilling OEM cartridges on the 4300. When refilling, I'm drilling a hole in the top and then resealing with glue. I've refilled the pigmented black about 10 times, and now it leaks all the ink out overnight. I've double checked the seal on the hole and replaced it a couple times. It is sealed completely, yet the ink still leaks out. Is the problem likely the cartridge or might there be a problem with the print head?
I don't want to try a new OEM if the print head might be the problem.
I don't want to try a new OEM if the print head might be the problem.