Change [paper source] to [custom string] load [orientation]

Try one or more of the following:

• Load the correct size and type of paper in the tray, specify the paper size and type in the Paper menu on the control panel, and then touch Finished changing paper.
• Touch Use current [paper source] to use the available paper size and type in the tray.
• Touch Reset active bin to reset the active bin for a linked set of bins.
• Cancel the print job.