OKI C310dn compatible chip
For use with OKI standard capacity cartridges only, bearing code numbers:
In our experience with our own C310dn, we needed to use a chip for every refill.
For full details on how to refill and change the chip, please see the
free PDF instruction booklet here
Please note: only OK for refilling the standard capacity cartridges, which have the following OKI original cartridge codes ...
44469803 (black), 44469704 (yellow), 44469705 (magenta), 44469706 (cyan)