Canon BJC-250 - Manual (Page 44)

Printing on Banner Paper
For best results, use Canon Banner Paper.
To set up a print job on banner paper, you must decide on the number of sheets you need.
You can print banner from 2 to 6 sheets in length.
Always leave an extra sheet at the end of the banner--just in case the type runs over.
The shaded portions of the drawing below illustrate the maximum recommended printing
area of Banner Paper.
Printing on Banner Paper requires quite a bit of ink. If you think your BJ
cartridge may run out of ink, use a new BJ cartridge.
For best print results on Banner Paper, use light design patterns.
To prevent ink from running over the edges of the sheet, print within the
margins shown in the previous illustration.