* Passive Voice: The sentence focuses on the action (being photocopied) being done to the subject (the papers), rather than who is doing the action.
* Passive Verb: The verb "should be photocopied" is in the passive voice. It is formed using the auxiliary verb "should" + the past participle of the verb "photocopy" ("photocopied").
To make it active: You could say, "Someone should photocopy the papers." Here, the focus shifts to the person doing the action.