Under the concept of original product we understand brand-name toner, developer, drum, drum module or other stuff produced by printer producer.
Also searched as:
MF6540, i-Sensys6540, iSensys6540, i-SensysMF6540, iSensysMF6540,
MF6540PL, i-Sensys6540PL, iSensys6540PL, i-SensysMF6540PL, iSensysMF6540PL