Our products will go through a series of machine tests before shipment to ensure the quality is stable before packaging and shipping to ensure that customers receive high-quality toner cartridges.

Product Introduction:  NPG-73 toner cartridges.

Compatible printers: iR-ADV 4525 4535 4545 4551 DX 4725 4735 4745 4751 Printer.

Notice : Since you replaced the drum unit with a new one, the printer may display the message "Drum Error" "Replace Drum" "Not Recognized", and you need to reset the drum counter to clear the error message.

Our goal is to provide our customers with quality products. Your customer's satisfaction is our driving force. If you have any questions, please contact us, we will do our best to solve your problem.

Have a nice day！