Hi
It's a Banner sheet and you can disable the option in the device level.
Enable or Disable the Banner Page on the Control Panel
- Log in as the System Administrator or Key Operator. See the Related Content for additional information.
- Press the [Machine Status] button on the Control Panel. The Machine Status screen will be displayed.
- Select the [Tools] tab on the Touch Screen.
- Select the [Service Settings] button.
- Select [Job Sheets].
- Select [Banner Sheets].
- Select [Enabled] to print banner pages or [Disabled] to disable this feature.
- Select the [Save] button.
Search banner print on the below support page for additional information
http://www.support.xerox.com/support/workcentre-7800-series/support/enus.html?associatedProduct=Work...
BR
Bharani