Lexmark 21Z0300 Technical Reference - Page 226

4-40 PostScript setenginesync boolean setenginesync - Changes the setting that indicates whether the printer waits for the last page of a job to print before returning a Ctrl-D to the host computer. The Boolean values indicate: true printer waits for the last page of the job to print false printer does not wait for the last page of the job to print Errors: invalidaccess, stackunderflow, typecheck setethernetaddress string setethernetaddress Sets the EthernetAddress parameter in the EtherTalk communication parameter set. The EthernetAddress parameter is the Ethernet address of the Ethernet internal print server (also called an internal network adapter or INA). The string value can be any string up to 17 characters. Errors: stackunderflow, typecheck setfilenameextend boolean setfilenameextend Sets whether the extension should be automatically added to any file name. true adds the extension false does not add the extension The default setting is true. See "File Name Extensions" on page 6-10. Errors: stackunderflow, typecheck