With a persistent "check cartridge" error I have gone through just about everything I've found others have done to troubleshoot, including the setup-copy workaround and a partial reset. I looked for a way to do a full reset but couldn't find one.
So about the only things I haven't tried are buying a brand-new cartridge (the hp 57) or disconnecting the internal battery to reset the system memory. A couple of people have said that they got "expired" catridges to work again after basically making the printer forget what date it was.
Since my cartridges are pretty old though still functional, I'd like to try this amnesia method before shelling out big bucks for a new 57 cartridge. I partially disassembled the printer, and it looked like it might be on the side-mounted circuit board near the buttons, but I saw nothing resembling a battery there.
Or is it in the detachable top portion that includes the glass, the buttons and the lcd interface... and no screws of any kind?
besides where it is, do you know what it looks like... I'd rather not have to take the whole thing apart
Have you upgraded the firmware?
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=oj-14036-3&lc=en&cc=us&lang=en&os=228&product=79491&dlc=en
I resolved this problem with this firmware upgrade
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