Lexmark C720 Service Manual - Page 205

5024-001 Resetting Counters Resetting maintenance and supply counters are required after replacing the following parts during service. - Transfer drum - Maintenance kit - Fuser - Fuser cleaner - Photo developer cartridge Any other supplies can be reset in the operator supplies menu. To reset an individual counter: 1. Select reset counters from the diagnostic mode menu. 2. Select the counter to be reset from the menu. A message, with the individual counter on the first line, is displayed. The second line displays (=Reset). 3. Press Select. A message is displayed stating that the individual counter has been reset. The next counter is displayed with the resetting of an individual counter. Error Log Viewing the Error Log The error log provides a history of printer errors. The error log contains the 12 most recent errors that have occurred on the printer. The most recent error displays in position 1 and the oldest error displays in position 12 (if 12 errors have occurred). If an error occurs after the log is full, the oldest error is discarded. Identical errors in consecutive positions in the log are entered. All 2xx and 9xx error messages are stored in the error log. Diagnostic Aids 3-19