By default, files saved in the folder are maintained and are not deleted automatically.
Administrators and users can change the storage period or set to never delete. However, user can only change the storage period or set to never delete when the Settings > General Settings > Storage Settings > Shared Folder Access Control > Access setting is set to Allowed and the Automatic Delete Setting Authority setting is set to User.
Select Settings on the printer's control panel.
Select General Settings > Storage Settings >Shared Folder File Management.
Change the period until files are deleted.