I am using DeskJet Ink Advantage 3775, and I just used up my black ink. The empty cartridge says I need HP 652. However, it's not available here in the Philippines, or I may have just not been luck enough to find one. So, I checked online, and found out that HP 680 is compatible to my printer model. So, I purchased HP 680, and I checked the package, and it says it's compatible indeed. But, I have been testing it for almost two hours and nothing is happening -- it seems like it's not compatible. 😞
Can someone please help me? I did not move from another location. I am just using a new computer set, but still the same place. Please help, and thanks in advance.
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