Canon LBP7018C E-Manual page 91

(2) Click [OK]. Then, the cleaning page is printed.
Next, clean the fixing roller using the printed cleaning page.
5
If any paper is loaded in the multi-purpose tray, remove it.
6
Load the cleaning page in the multi-purpose tray with the printed side facing down.
7
Press the [ ] (Paper) key.
The cleaning page is fed into the printer, and the printer starts cleaning the fixing roller.
NOTE
Cleaning time
It takes approximately 90 seconds.
Cleaning the fixing roller cannot be canceled. Please wait until it is completed.
(The cleaning is finished when the paper is output completely.)