Cartridge is nearly filled and has more powder, but shows that it is not loaded properly ... so far worked flawlessly ...
SOURCE: error 31 lexmark e350d
Possible causes here are;
Most likely, the contacts in the printer not touching the chip properly (hence why it works in another printer). A simple gentle 'tweak' would work in this case.
The other possibility is the firmware version of the (offendig) printer being incompatible with the version of the after-market chip you are using. No solution here, other than trying a DIFFERENT MAKE of chip.
SOURCE: lexmark optra t610 invalid refill error change
The error may not be specifically a toner cartridge problem but may be due to a stuck cover open switch on the printer. Perhaps this article on Error: "Invalid Toner Cartridge" or "Invalid Refill" will be able to determine the root cause of the problem. Just click on this link: http://bit.ly/dupj2m. Just make sure you are using a genuine Lexmark toner in the printer. If you need further assistance, you can also contact Lexmark technical support. Thanks.
SOURCE: my lexmark t632 says (
You have a chip which controls the cartridge.
Get the chip of the old cartridge and change.
The chip is on the top right side of teh cartridge.
Or put a genuine cartridge.
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