42Error MessagesError Message Cause Corrective ActionMail box full. Delete unwanteddata100 jobs are stored in the personalbox.Delete unneeded jobs stored in personal boxes.Mail box nearly full. The free hard disk space left forpersonal boxes in the printer'shard disk does not have 1 GB,combined.Delete unneeded jobs stored in personal boxes.(→"Deleting Saved Jobs," User Manual)Multi-sensor error Direct sunlight or strong lightingmay be shining on the printer andcausing the sensor to malfunction.Take steps to ensure the printer is not used whenexposed to direct sunlight or strong lighting.The performance of a sensorinside the printer may be impaired.Contact your Canon dealer for assistance.The mail box is full. There is no more space on theprinter's hard disk.Press the Stop button and stop printing.Delete print jobs from the queue.Delete unneeded jobs stored in personal boxes (boxnumbers in the range 01–29).(→"Managing the Job Queue (Deleting or PreemptingOther Jobs)," User Manual)(→"Deleting Saved Jobs," User Manual)(→"Deleting Saved Jobs," User Manual)Rewinding error. There is some foreign object nearthe Media Take-up Unit sensorand the roll cannot be detected.Remove the foreign object near the sensor.Media take-up unit ready. The Take-up Reel setting inthe printer Set./Adj. Menu waschanged from Enable to Disable,but a print job was received beforethe roll was removed.Press ▲ or ▼ to select Stop Printing, and then pressthe OK button to stop printing.The Media Take-up Unit sensoris soiled and the roll cannot bedetected.Wipe the sensor with a dry cloth to clean it.The roll is out of range of detectionby the Media Take-up Unitsensor.Reload the roll.The Media Take-up Unit sensor isdamaged.Contact your Canon dealer for assistance.A paper jam has occurred and theroll cannot be rewound.Remove the paper from the Media Take-up Unit.(→ , Loading Rolls in the Printer)Press the OK button to clear the error.The mode switches from take-up mode to regularmode after you change the Take-up Reel settingin the Set./Adj. Menu from Enable to Disable andlift the Release Lever to remove a roll, or after youexecute Paper Cutting.Press ▲ or ▼ to select Print, and then press the OKbutton to resume printing.Turn on the media take-up unit. The Media Take-up Unit was offwhen you selected Enable forTake-up Reel.Turn on the Media Take-up Unit.