The main HP toll-free phone number for printer support in the U.S. is **1-800-474-6836**. This number can be used for faster support, though HP recommends creating your case online before calling[1].

Additionally, HP offers a dedicated 24/7 support line for printer-related inquiries and shipping of supplies at **1-888-447-0148**[3].

Operating hours for general phone support for printers typically run Monday through Friday, 8:00 a.m. to 5:00 p.m. Eastern Time, but some regions or specific support options might vary slightly[1].

If you are outside the U.S., contact numbers and procedures differ depending on the region or territory, as detailed on HP’s contact page[1].

For the most efficient assistance, it is recommended to first create a support case on HP’s support website and then call the relevant number provided[1].