Hi @@Adagan,
Thank you for your query.
I understand that you have connected and installed the Deskjet 4645 on one computer connected with USB. You have marked the printer as shared and would like to know if you can scan from another PC on the network.
I do not believe that is possible, however, as you do have a network, you can put the printer on the network and then you would be able to scan and print from both computers with the printer software installed on each. Here is a link to assist you with connecting the printer to your network:
HP Officejet 4630, Deskjet 4640 Printers - Wireless Printer Setup (Windows)
As you have established the USB connection, please note the section under "Frequently asked questions (FAQs), "Can I switch to a wireless connection, if I already installed HP software through USB or Ethernet?"
Please let me know the outcome.
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Sparkles1