Kumar0307,
I did not have a paper jam or a print cartridge jam. I did not get a "paper jam" error code. I had a blue screen with the code 89E60250 showing. I do not understand why HP cannot provide a list of codes that printer may display, what codes mean, and potential troubleshooting for each code. You tell me it's a hardware glitch and tech support says it was a wireless communication issue.
Yes, a hard reset did get my HP Envy 7800 working again.
When I finally got in contact with HP Tech Support to try to get information about "89E60250" I was told that the blue screen with code 89E60250 was likely due to communication issues with my router. HP support suggested updating router firmware, but my router already had the latest firmware installed. HP support then had me reset the wireless connection on HP Envy 7800 printer.
I still do not feel that HP has been upfront about the blue screen with code 89E60250. I am not convinced the issue is 100% resolved. It's very disappointing to purchase a new printer and have issues.