Incompatible Cartridges

[This_Girl]

I've had my HP OfficeJet Pro 9018 printer for about 2 solid years with no issues.  Two days ago I started getting this "Incompatible Cartridges" message saying "This printer is not designed to use continuous ink system.  To resume printing, remove continuous ink system and install original HP or compatible cartridges.

How is this even a thing when I have always used nothing but 100% original printer cartridges?  I purchased my printer from Sam's Club and have purchased all the printer cartridges over the years from there as well.  The really weird thing is also that I have not replaced the cartridge recently with a new one and so this just happened totally out of the blue.

[BeemerBiker]

There was a Dec 4, 2024 firmware update.:

Reminder: Dynamic security enabled printer. This Firmware includes dynamic security measures, which are used to block cartridges using a non-HP chip or modified or non-HP electronic circuitry. The printer is intended to work only with new or reused cartridges that have a new or reused HP chip or circuitry. Periodic firmware updates will maintain the effectiveness of the dynamic security measures and block cartridges that previously worked. More at: www.hp.com/learn/ds.

as far as I know there is no way to downgrade the firmware but I might be mistaken.

Click here for: Rights in USA

[This_Girl]

I have never used any other brands than genuine 100% HP printer cartridges

[BeemerBiker]

clean and reseat the cartridge.  It is not being recognized.

https://h30434.www3.hp.com/t5/Printers-Archive-Read-Only/How-do-I-fix-continuous-ink-system-error-me...

let me know if it works