What do the error codes E1, E2, E3, and E4 mean on the control panel display?

The Number of copies icon alternates between the letter E and a number to indicate specific errors. E1 means the paper width for the print job is bigger than the loaded paper. E2 means the paper length does not match the loaded paper. E3 means the carriage inside the printer has stalled, and you should open the printhead access door and clear any obstruction. E4 indicates a paper jam that must be cleared before pressing the Resume button to continue. (Page 13-15)