Quoting Reconfigure your printing system

Resetting or reconfiguring the printing system is an effective resolution to implement when facing the printer is offline mac problem. For reconfiguring the device, www.123.hp.com/setup adhere to all the instructions that you see below.

Right-click the blank area in the printer’s list. Next, choose the option of ‘Reset printing system.’ You will notice a prompt for its confirmation. Confirm it. " www.123.hp.com/setup "
Now you need to input the username of the administrator’s account. You also need to input the account’s password.
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https://123-hpprintersetup.com/">www.123.hp.com/setup
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