Canon iPF760 series Service Manual page 18

Chapter 1
The roller holder accepts paper tubes having inside diameters of both 2 and 3 inches. It is furnished with attachments for 2- and 3-inch diameter paper tubes.
The roll holder clamps the paper tube of a roll not exceeding 150 mm in outside diameter from the inside.
[2-inch paper tube attachment]
[3-inch paper tube attachment R]
[3-inch paper tube attachment L]
1-4
F-1-5
F-1-6
F-1-7
F-1-8