How to Set Page Length in a Dot Matrix Printer

Click on 'Start' in Windows and select 'Control Panel.' Click on 'View devices and printers.'
Right-click on your dot matrix printer and click on 'Setup.' Click on 'User Defined Size' in the 'Paper size' section.
Navigate in the paper size area of the 'User Defined Size' dialog box to select the paper length. Click 'OK' twice. Click 'Close' to exit the Setup box for the dot matrix printer.