Table 7-2 Alphabetical printer error messages (continued) DENSITY SENSOR OUT OF RANGE alternates with CLEAN DENSITY SENSOR Description: A density sensor out of range error was detected during a color calibration. Action: The density sensor might be dirty. Inspect and clean the sensor. See Cleaning the toner density sensor (page 85). DIAGNOSTICS MODE Description: The extended diagnostics power-up key sequence has been entered. Refer to the diagnostics procedures at the end of this chapter. Action: No action required. DRUM ERROR REPLACE DRUM KIT Description: An error has been detected with a component of the printer drum kit. Action: Replace the drum kit.
DRUM LIFE LOW REPLACE DRUM KIT (4500) -or- DRUM LIFE LOW ORDER DRUM KIT (4550) Description: Approximately 80% of the drum’s life has been consumed. Action: Continue printing and order the drum kit. Drum replacement will be required when the Drum Life Out message is displayed. DRUM LIFE OUT REPLACE DRUM KIT Description: The imaging drum has reached the end of its expected life. Action: Replace the drum kit. DUPLEXER ERROR CHECK DUPLEXER Description: An error has occurred in the duplex unit. Action: 1. Verify that the duplex unit is correctly installed. 2.
Verify that the small power cord from the duplex unit is plugged into the printer, and the power cord from the AC outlet is plugged into the duplex unit. EIO X INITIALIZING YYY alternates with DO NOT POWER OFF Description: The EIO device in slot X is initializing. The YYY value will increment every 10 seconds during this process. Action: No action required. EIO X NOT FUNCTIONAL Description: The EIO slot specified does not have a card installed or is not functional. Action: No action required. EVENT LOG EMPTY Description: SHOW EVENT LOG was selected from the Information Menu, but the Event Log has no entries. Action: No action required. 220 Troubleshooting C7085-90921