Hi @arpearl,
Welcome to the HP Support Community!
Thanks for reaching out about your query regarding your printer!
We're thrilled to have the opportunity to assist you and provide a solution.
Try these steps:
Double-check for Hidden Shipping Locks
Even if you already did this, just in case:
Check the yellow cartridge for any yellow/orange tabs, plastic strips, or rotating drum locks that may be partially hidden or hard to spot.
Some users have found a clear plastic shield or thin film stuck under the rotating drum shutter.
Update Printer Firmware
Kindly refer to this link to update your printer firmware.
Clean the Cartridge Sensor
Inside the yellow toner slot:
Use a soft, lint-free cloth and isopropyl alcohol to gently clean the metal contacts and sensors.
Sometimes toner dust interferes with the lock detection.
I hope this helps.
I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨
Take care and have an amazing day ahead! 🚀
Best regards,