Canon varioPRINT 135 Series Operation Manual page 310

Procedure
1.
On the control panel, touch [Jobs] -> [DocBox].
2. Touch the DocBox that contains the jobs you want to print.
3. Touch the [Select] button.
4.
From the drop-down menu, select the required option.
5.
Press [Print].
Canon varioPRINT 135 Series
Select and Print Multiple Jobs from the DocBox
Chapter 9 - Use the DocBox (Option) 309