Power Fail during fax send

[tlonski]

My M283cdw keeps having a Power Fail on the second page of sending a fax.  The firmware and drivers are current.  I'm manually sending the fax from the printer so a computer is not involved.  I do have a Windows 11 PC, an Apple Mac, iPhones and an iPad.  None of the devices having any printing problems.  On the printer I've done the "Run Fax Test" (Setup -> Self Diagnostics) and the printer passes the fax tests.  The telephone cable from the printer is directly connected to the phone line in the wall.  The printer is on a surge protector and nothing else plugged into the surge protector has a power failure during the fax.

My most recent attempt to send a fax had four pages.  When I send the fax the printer connects to the fax number and sends page 1 but after sending page 2 the printer auto restarts, starts sending the fax again, and keeps auto restarting.  It does this cycle about 10 times before stopping on its own or until I cancel sending the fax.  When I look at the Fax Activity Log in HP Smart it shows the Result of each attempt at sending the fax is a Power Fail.

I looked at this post but it didn't solve my problem.  Error Correction was already On.  I changed the resolution from Fine to Standard.  I changed the Fax Speed from Medium to Slow.  I also tried a Fast Fax Speed.  The error kept occurring.

I also looked at this second post but it didn't have a solution.

Any help appreciated.  How can sending a fax cause the printer to restart?

Thanks.