The selenium drum is a cylinder made of metal with light-sensitive material selenium on it. It is a component in the copier or laser printer, and it is used to print the parts to be printed[Detailed]
Adding powder to original consumables depends on what consumables are.Some brands allow adding powder, and the powder box is designed with a powder adding mouth.But most brands don't allow users to do it themselves[Detailed]
I bought several original ink cartridges and toner cartridges at one time. They are indeed original. The printing effect is very good, and the color is very good. I have used non original cartridges before. They either leak ink or print poorly. Every price counts!
I bought two sets of this printer before and have used it for almost a year. I always think it is good.I bought two sets of toner cartridges last time, but now they are almost used up. I still think they are very durable. I will buy another set this time.