The toner cartridge engages when the door is closed.

盖门关闭后，硒鼓将锁定就位。

I thought they have already changed the toner cartridge this month.

我想他们这个月应该是换了墨盒了。

Oper the front over then replace the toner cartridge with a new one.

墨粉寿命结束，打开前面的盖子，更换新的。

Kim: Sure. But that will work only a few times. Anyway, you will need a new toner cartridge soon.

不客气。不过这个方法只能用几次。不管怎样，现在需要新的硒鼓。

We provide you with high quality Toner Cartridge, Drum Cartridge products and excellent buy services.

我们为您提供高品质的硒鼓，墨盒，鼓墨盒的产品和良好的购买服务。