Hi @Marci100,
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
I understand you have an issue with the PC not powering on, to try and isolate the issue, please try the steps shared below
Please remove the Cartridges from the Printer if possible, and try a Hard Reset, do keep us posted to help you better
** Hard reset :
1. Turn the printer on, if it is not already on.
2. Wait until the printer is idle and silent before you continue.
3. With the printer turned on, disconnect the power cord from the rear of the printer.
4. Unplug the power cord from the wall outlet.
5. Wait at least 60 seconds.
6. Plug the power cord back into the wall outlet.
NOTE: HP recommends connecting the printer power cord directly to the wall outlet.
7. Reconnect the power cord to the rear of the printer.
8. Turn on the printer, if it does not automatically turn on. The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.
9. Wait until the warm-up period finishes and your printer is idle and silent before you proceed.
I hope this helps.
Take care and have a good day.
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VikramTheGreat
HP Support