Canon imagerunner advance 4545 Faq Manual page 16

Printing Results Are Not Satisfactory
Bleed-through Occurs
1
Solution
Set the type of original properly.
For copying, a button is provided in the Quick
Menu.
1.
Press
2.
Press [Shared] [Copy(Prevent Bleed-Thru)].
3.
Press [Yes].
2
Solution
Set a lower background density.
1.
Press
2.
Select the function on the touch panel display.
3.
Press [Options].
Example: Fax
4.
Press
16
5.
Press
6.
Press [OK].