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08-08-2021 01:12 PM - edited 08-10-2021 11:16 AM
Photosmart C4480 with Macbook Pro running BigSur 11.5 via USB connection. HP Photosmart Driver 5.0.5
Printer had been working fine with this Macbook. I installed new genuine HP cartridges (74 and 75) and printer went into alignment mode. Alignment page printed fine (black only -- should there be color?) but then when I go to scan alignment page, it makes scanning sounds but then tells me "Alignment Page not detected.... Alignment failed...may continue but cartridges not calibrated " But when I try to print something from computer, whether using both b&w and color, or b&w only, nothing prints. The page just comes out blank. I tried turning printer on and off. No difference, just forced to print out another undetectable alignment page. I tried uninstalling and reinstalling cartridges...only result was yet another undetectable alignment page. I tried cleaning printheads twice up to level 3, each time a black and white only sheet emerged. When I check HP utility it shows "Supplies: Good" but when I try to open "Supplies Status" in HP Utility, the utility quits and I have to reopen. Have done 3 times now and it crashes each time. Please help get my printer working again. Thank you.