I had this issue the first few times with a c4780. The cartridges are not that easy to install the first time. I feel the instructions need revamping. The design is such that you need to slide it in but then change finger positions to lift and pop the cart into place. Textual instructions would fail us here.
If you can't get the carts installed then why keep it? HP's docs are not great here.
I just bought a new HP Officejet J3600, and am having a terrible time trying to install the ink cartridges. I've tried to follow the manufacturer instructions, and nothing seems to work; the cartridges came with the printer, both black and color, and I can't get either to fit into place properly.
Does anyone have any experience with this type of printer? The instrutions look so simple, yet they're just not working for me.
Thanks for any help you can provide!