Please check this document to find the workaround solution for Print and Scan - HP Solution Center not working : Adobe Flash Player Error and Unable to scan
Resolve Windows 10 or update issues on HP computer or printer– Click Here
The printer has an error code C9C70000. The Cartridges will not move to access them. The printer is offline and will not connect to the wifi to update it firmware.
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I recommend you to contact the HP Support Team regarding this as this could be a hardware issue.
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