Paper has been loaded askew, or warped paper has been loaded.
Because the Platen is soiled with ink or other substances, the size
of the clear film cannot be detected.
Messages regarding paper
Printing will resume, starting from the page
on which the error occurred.
(See "Loading Sheets in the Printer.")
Open the Top Cover and clean the entire Platen.
(See "Cleaning Inside the Top Cover.")
Paper size not detected.