```ruby
module ActionView
  
  module Helpers
    module AssetTagHelper
      
      alias_method :old_stylesheet_link_tag, :stylesheet_link_tag
    
      def stylesheet_link_tag(*sources)
        options = sources.extract_options!.stringify_keys
        options[:media] = 'print' if options[:media].blank?
        old_stylesheet_link_tag(sources, options)
      end
      
    end # AssetTagHelper
  end # Helpers
end # ActionView```

Rename ActionView::Helpers::AssetTagHelper.stylesheet_link_tag to print_stylesheet_link_tag (stringify_keys doesn't work for rails3)
user
```ruby
module ActionView
  
  module Helpers
    module AssetTagHelper
      
      alias_method :old_stylesheet_link_tag, :stylesheet_link_tag
    
      def print_stylesheet_link_tag(*sources)
        options = sources.extract_options!.stringify_keys
        options[:media] = 'print' if options[:media].blank?
        old_stylesheet_link_tag(sources, options)
      end
      
    end # AssetTagHelper
  end # Helpers
end # ActionView
```
assistant