Revoprint have just launched the new color laserjet cartridges for OKI 3640 B/C/Y/M.  which is for use in
Okidata MFP ES3640E

This Multi Function Printer gives network printing in full color at up to 36 ppm, black & white (mono) at up to 40 ppm.  Each color of the laser cartridge have 15000 Page yield in 5% coverage. these are remanufactured cartridge with new drum and other major parts. the quality benchmark the original cartridge.
 
Please do contact our sales team for more details if you have such demand.