Shared Printer (Fax)

Hello,

I’m not even sure that Catalina still supports fax machines. You may find it easier to just use the older PowerBook when you need to send a fax.

Send a fax from your Mac using a multifunction printer

You can fax pages directly from your Mac if your multifunction printer supports faxing.

Note: The following options might not be available for your multifunction printer. If these instructions differ from what you see onscreen, refer to the documentation that came with the printer or app you’re using.

1. On your Mac, open the document you want to fax, then choose File > Print.
2. Click the PDF pop-up menu, then choose Fax PDF.
3. Click the Printer pop-up menu, then choose your multifunctional printer.
4. Enter the fax number by doing one of the following:

• • Type the fax number in the To field.
  • If you see a Contacts button to the right of the To field, click it to select a number.
  • To paste a number into the To field when the Edit > Paste command isn’t available, press and hold the Control key as you click in the To field, then choose Paste from the menu that appears.

1. If your phone system requires you to dial a prefix for an outside line, type it in the Dialing Prefix field.
2. If you want to include a cover page, select “Use cover page,” then enter a subject and message.
3. To change your options, use the print options pop-up menu (the pop-up menu within the separator bar).
4. Click Fax.

The top of every page has a header that contains the date and time the fax was sent, a page number, and the fax number of the sender (from Printers & Scanners preferences).

If you include a cover page, its heading contains the fax’s recipient (from the To field in the Print dialog), the fax’s sender (the name of the logged-in user), the date and time the fax was sent, the subject line (from the Subject field in the Print dialog), and the number of pages in the fax, not including the cover page. The body of the cover page contains the text you entered in the Message field in the Print dialog.

https://support.apple.com/guide/mac-help/send-a-fax-mac-multifunction-printer-mchlp2449/mac

Set up a multifunction printer to send faxes from your Mac

If you have a multifunction printer connected to your Mac, follow these instructions to set it up to send faxes.

Note: macOS Sierra and later does not support sending faxes using legacy fax modems. If you’ve used a fax modem in the past with your Mac, you may be able to continue using it to send and receive faxes by installing third-party fax software. You can also try using an internet faxing service. For more information, search the internet for “fax software” or “internet fax service.”

1. Follow the instructions that came with the printer to set it up and connect it to your Mac.
2. On your Mac, choose Apple menu  > System Preferences, then click Printers & Scanners.
3. If you don’t see your multifunction printer in the list at the left, click the Add button . If a pop-up menu appears, choose Add Printer or Scanner.
4. Select your printer in the list, click the Use pop-up menu, choose the version of printer software that supports faxing, then click Add.
5. For information about which software to choose, see the Apple Support article Printer and scanner drivers for Mac.
6. If your multifunction printer is compatible with macOS Sierra or later, the fax capability is added automatically when you add the printer. If you can’t add the printer as a fax machine, see the documentation that came with the printer to find out how to use it to send and receive faxes.

https://support.apple.com/guide/mac-help/set-a-multifunction-printer-send-faxes-mac-mh28040/mac

3 ways to FAX from Mojave & Catalina...

https://machow2.com/fax-from-macos-modem/