I have error 50.22.00 in my Hp M602 printer - HP LaserJet 600 M602DN Laser Printer - M

https://www.metrofuser.com/post/tray-2-open-error-on-the-m600-series-printers

https://h30434.www3.hp.com/t5/Printers-Archive-Read-Only/HPLJ-600-m602-49-06-65-error-code/td-p/5064604

Likely you need RM1-4539-000CN. This is a the tag holder assembly.

google the code.

HP LaserJet Enterprise 600 M601, M602, and M603 Series Printer - Restore factory settings:

Fuser is not heating. Reseat the fuser, if that does not resolve the issue you will need to replace the fuser.

Try this:
Turn off the machine
Take the toner/cartridges out of the machine
Unplug the power cord from the wall
Wait 30 sec
Plug the power cord back into the printer and wall (Make sure the printer is plugged into the wall and not a surge protector)
Insert the toner/cartridges back into the printer
Turn it on and test

how can i fix error 98.00.0c hp 600 m602.

Amber , light ,means attentions and some times alert