cap/wipe/purge is thad unit thad is placed on the printhead while cleaned. Where to find, op the front accesdoor and remove the maintenance drawer, If you look inside the printer just below the drum you wil see the CWP.
To remove it; remove the left and right cover, remove the inkloader and below the inkloader you find the printhead.
When you want absolutly no further damage to the printhead you can remove him. After you removed it you wil find the CWP, To move it upward thurn on the upper right clutch. Check the rubber side's on the CWP to see if the side's are broken, For the sensitive parts on the printer the are indeed metal plate but the filters inside going to 2 microns if any oxidation is inside the ink wil not pas easely whit lite stripe as a result. also if you do like you write, heat it up and placed in the freezer, the metal can crack. It is going from 130 degrees in to -20 degrees in a short time, it is almost the same like spilling hot water on a frozen window. in hope of any help. Dany