Unknown paper format Reload paper The format (roll or sheet) of the paper loaded in the printer is unknown. Reload the paper following the normal procedure, to solve this problem. See “Loading a Sheet of Paper” on page 45 or “Loading a Roll of Paper” on page 56 on the reverse of this Pocket Guide . Warning: color calibration not done on this paper type The printer has detected that the color calibrations have not been performed on this paper type, and the system is configured to do them. To calibrate color for the current paper type, select Ink menu → Calibrate paper . Unknown printheads. Press ENTER to continue.
The printheads are not recognized by the printer as printheads approved by HP, though the printer can still use them. Press the Enter key. Unknown paper type Select paper type The type of the paper loaded in the printer is unknown to the printer. Select a known paper type from the printer menu. Message Front-Panel Error Messages 45 Message Explanation and Action Unknown paper format Reload paper The format (roll or sheet) of the paper loaded in the printer is unknown. Reload the paper following the normal procedure, to solve this problem. See “Loading a Sheet of Paper” on page 45 or “Loading a Roll of Paper” on page 56 on the reverse of this Pocket Guide. Unknown printheads.
Press ENTER to continue. The printheads are not recognized by the printer as printheads approved by HP, though the printer can still use them. Press the Enter key.