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- HP Community
- Printers
- Printer Ink Cartridges & Print Quality
- Re: I have a HP8730 that show a Supply System error

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11-26-2025 03:19 AM
I have replaced the cartridges ( genuine) and cleaned the printhead. The menu is "frozen" such that I cannot access other menu functions. When I place the old (used) cartridges in the printhead, the supply system error also appears. Totally a circular reference. Are to any options available to me apart from getting a new printer?
11-26-2025 08:22 AM
Hello @TRC69 , how are you ?
Please, try the procedures below:
Best regards
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11-28-2025 02:49 AM
I have tried all the HP online advice multiple times include what is nominated above. I have replaced cartridges (all genuine), checked for leaks, cleaned all contacts, reset printer head, cleaned printer head - all done multiple times.
The supply system error still exists. What have I missed? Surely there is a simple answer.
11-28-2025 12:51 PM
Hello @TRC69
You then need to replace the print head.
Best regards
Welcome to the Community, I am a volunteer and private messages will not be answered.
If the answer was helpful and/or you would like to say "thanks", Click on the button“Yes” Did I help solve the problem? Don't forget click “Accept as a solution”, If anyone has the same question, this solution might be helpful.