Canon DADF-N1 Service Manual page 176

3. Applying Silicone Oil
1) Squeeze the silicone oil bottle [1] 2 to 3 times to moisten the cleaning tissue [2] with it.
Don't absorb the mist of silicone oil.
F-4-17
2) Apply silicone oil to the reading glass [1] with cleaning tissue. Thereafter, check to see
that the glass has fully been cleaned.
[1]
F-4-18
4. Cleaning with a dry tissue
1)Wipe the reading glass with a dry area of cleaning tissue (i.e., the area where silicon oil
is not contained).
Chapter 4
4-13