Canon BJC 3000 Reference Manual page 200

Check 1
Does the size of the paper in the printer match the
Page Size setting in the printer driver?
If you are using Scaled Printing to enlarge or reduce the print job so it fits
on the paper in the printer, first set the Page Size in the Page Layout tab to
the size specified in the application program. Next, set the Printer Page
Size to the size of the paper in the printer.
Check 2
Are you using the correct paper size for Scaled Printing?
To set the scale for the enlargement or reduction, load paper that matches
the Printer Page Size setting in the Page Layout tab.
For more details, refer to the Driver and Utility Guide for Windows Users or
Note
Driver and Utility Guide for Macintosh Users.
Enlarged/reduced printing not correct
Troubleshooting - Printout is Unsatisfactory
Windows
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