Lexmark C530DN Technical Reference - Page 201

4-6 PostScript • If the requested media size is not found by the previous search, the following search order is used: - Tray 1 - Tray 2 - Tray 3 - Multipurpose Feeder - Tray 4 - Tray 5 • If the requested size cannot be located in any automatic source, a configurationerror is issued and the job is flushed. For printers that support automatic duplexing: • Automatic duplexing is not supported for custom-size paper or for envelopes in the multipurpose feeder. Automatic duplexing is supported from the multipurpose feeder for all other papers. • If the paper source is changed before the back side of a duplexed page prints, a blank back page prints, the paper source changes, and the information for the back side of the page is printed on the front side of a page sent from the new paper source. When these operators are used, it is equivalent to executing the following PostScript emulation sequence: >> setpagedevice where x y are the PageSize in points.