Let’s MANUALLY download HP LaserJet 3050 All-in-One Printer from Support.hp.com and install the driver to check whether it could scan and find the 3050 printer correctly.
This is the download link!
And I will paste this link below the video. Please find the download link below and install manually!
https://ftp.hp.com/pub/softlib/software13/COL40842/ds-99374-19/upd-pcl6-x64-6.6.5.23510.exe