REFURB Oki ML520 and ML521 Printhead  Original part number is 50099501.
OKI offers the Replacement Printhead for the Microline dot matrix printers. This user-replaceable printhead has an average lifetime of 200 million characters in utility mode at normal 25% duty and 35% page density.
- Features: 9 pins
- Yield: Up to 200 million characters
- Compatibility: Oki Okidata Microline ML520 and ML521 Refurbished
- 6 Month Warranty