Wiper blade: Generally the wiper blade sits at side of the capping station and performs the first step of printhead cleaning procedures - it scrapes away partial waste ink on printhead nozzles before they’re forwarded to the sealing pad of capping station. A wiper blade without regular cleaning might lead to clogged printhead and inadequate printing.

Sealing pad: The sealing pad is the main part of the capping mechanism. When performing a printhead sealing, it directly touches the printhead nozzles and might accordingly get ink buildups from them. A regular cleaning to remove these buildups can effectively maintain the pad cleanness thus reducing printhead clogging. 

Waste ink pad: Waste ink pad normally lies in the bottom of capping station. It works as a collector that absorbs waste ink from wiper blade and sealing pad, and stores them back to the waste ink bottle. Every waste ink pad has been pre-set with a maximum number of usage. When it reaches that maximum number, a replacement or reset will be needed.

The maintenance to capping station mainly involves two parts: ink residues cleaning of both wiper blade and sealing pad. As it’s been mentioned in most Procolored tutorials, it’s highly recommended to do that cleaning with moisturizing cleanser instead of alcohol. Compared to water or moisturizing cleanser, alcohol evaporates faster and it’s more likely to accelerate the drying up of ink residues, leading to nozzle clogging issues.