HP 4500 HP Color LaserJet 4500, 4500N, 4500DN Printer User Guide - Page 123

Printer Control Panel Messages (continued) Message Description Recommended Action DENSITY SENSOR OUT OF RANGE alternates with CLEAN DENSITY SENSOR DRUM ERROR REPLACE DRUM KIT DRUM LIFE LOW REPLACE DRUM KIT DRUM LIFE OUT REPLACE DRUM KIT DUPLEX ERROR CHECK DUPLEXER EIO X INITIALIZING YYY alternates with DO NOT POWER OFF EIO X NOT FUNCTIONAL EVENT LOG EMPTY FUSER LIFE LOW REPLACE KIT FUSER LIFE OUT REPLACE KIT A density sensor out of range error was detected during a color calibration. The density sensor may be dirty. Inspect and clean the sensor (see chapter 7 for cleaning instructions). An error has been detected with a Replace the print drum kit. component of the print drum kit. The imaging drum is near the end of Continue printing, or replace its expected life. the drum kit. The imaging drum has reached the Replace the drum kit. end of its expected life. An error has occurred in the duplex Verify that the duplex printing printing accessory. accessory is correctly installed. The EIO device in slot X is No action required. initializing. The YYY value will increment every 10 seconds during this process. The EIO slot specified does not have a card installed or is not functional. No action required. SHOW EVENT LOG was selected No action required. from the Information Menu, but the event log has no entries. The fuser is near the end of its expected life. Continue printing, or replace the fuser kit. The fuser has reached the end of its Replace the fuser kit. expected life. EN Chapter 8 123