Printer takes A4 size instead of custom size that I have defined in report layout

I have created Check print report & give custom paper size in report layout, but while printing printer takes default A4 size insted of custom paper size…

Please give me solution for this.

The solution depend to knowing which version of NAV and which report type your question is about? Classic, RDLC or Word layouts?

NAV Version 2017, RDLC Layout.

Then you need to select the correct size both inside the RDLC report layout and also selecting the correct printer and papersize from Windows.