You selected Manual Feed. When the printer is ready to print your job, the printer's control panel prompts you to remove ...

You selected Manual Feed.  When the printer is ready to print your job, the printer's control panel prompts you to remove any paper from Tray 1, and then to load the paper for your job.  If you want to use the paper already loaded in Tray 1 (MPT), do not select Manual Feed. Continue with Manual Feed?