Service Mode Menu The Service Mode Menu can be entered only by pressing the left side of the I TEM and the V ALUE keys at the same time. For more information about using the Service Mode Menu, see page 420. NVRAM SETTING (nonvolatile random-access memory setting) menu is provided to replace values that might be lost when a formatter board or control board is replaced in the field. FORMATTER DIAGNOSTICS menu is provided for manufacturing and field service personnel to perform specific diagnostic tests on the formatter board and its related components. • Service personnel can pinpoint problem areas on the formatter board for replacement or for tracking defects.
• The operator can choose which tests are enabled and disabled during execution, whether the tests run once or continuously, and whether the test sequence stops upon failure or continues despite failure. • A fault log is implemented within formatter diagnostics to record errors for review. • Because many of the formatter diagnostic tests are destructive memory tests, a special key sequence is used to enter the mode. A message warns service personnel that the printer is about to perform destructive memory tests. Table 26. Service Mode Menu Service Mode Menu Item Value Description/action NVRAM SETTING SERIAL NUMBER This number is the serial number of the printer.
Press – V ALUE + to change the value of the current character. Press S ELECT to save the value and move to the next character. FORMATTER NUMBER This number is the serial number of the formatter board. Enter the number in the same manner as the serial number of the printer. TOTAL PAGE COUNT Total number of pages processed. COLOR PAGE COUNT Number of color pages processed. * Default setting. EN Menu maps 93