Review on 🖨️ Ink Maintenance Box T6715 T6716 Remanufactured for Workforce Pro ET-8700 WF-C5790 WF-M5799 WF-C529R WF-C579R WF-M5299 WF-M5799 WF-C5710 WF-C5790 WF4834 WF4830 WF4820 WF3820 WF4734 WF4740 Printer by Michael Ward

I was happy that it worked without any problems. First time I found out about the maintenance lockdown! I have to say I replaced the ink cartridges the day before the box expired message. Without warning! When I replaced a new maintenance box and the machine ran for a few minutes, did it use a lot of ink? Not sure why? But my job depended on the printer/fax/scanner so 2 days out of work until Revain delivered, I won't complain. Just a mention of it. Make sure other buyers have spare cartridges just in case!