I was wondering what the criterion for the default deleting of pages is. Maybe a percentage of the page usage?

iPrint uses a number of characteristics from a page to determine if it is blank or empty.

iPrint looks at content in certain areas of the page differently - for example, content in the top and bottom where headers and footers commonly occur is given less relevance than content in the main section of the page.

iPrint does a statistical analysis of this and other factors to determine if the page is empty.