All-in-one printer option (4)
I believe the answer is:
scan
'all-in-one printer option' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for scan that I've seen before include "Peruse, scrutinise" , "Glance negligently at" , "Read hastily" , "Examine closely to analyse metrically" , "Take a quick look" .)