Print ContrastThe print contrast can be adjusted to Low, Medium, or High. The default setting is Medium.Charge RollThe charge roll can be adjusted to Low, Medium, or High. The default setting is Medium.Gap AdjustAdjusts the minimum gap between sheets during printing. This setting reduces speed (pages per minute), butcan be used to reduce curl of printed media and improve stacking in the output bin.The range is 0 (default) to 255. Adjusting by one results in 9 mm of increased gap.Automatic Darkness Adjustment (Auto Dark Adj)This setting attempts to optimize the amount of toner used when printing with a specific operating point. Eachtime this setting executes, the printer performs the following:• Calibrates its toner density sensor• Measures the reflectivity of its bare drum• Prints patches on the drum and measures the drum’s reflectivity through the patches• Cleans the transfer roll• Calculates reflectivity ratios and operating points in order to attain each operating point’sdarkness target• Modifies the EP mechanism as necessary to adjust toner darkness.No messages are displayed on the operator panel to give any indication that this test is running. Whendeactivated, the printer disables.Event logDisplay LogSelecting EVENT LOG provides a history of printer errors. The most recent error displays in position 1, and theoldest error displays in position 10 (if 10 errors have occurred). If an error occurs after the log is full, then theoldest error is discarded. Identical errors in consecutive positions in the log are entered. All 2xx and 9xx errormessages are stored in the event log as well as the PC kit and maintenance counter resets and NVRAM resetsinitiated by the Factory Defaults setting in the UTILITIES menu.To view the display log:1. Select Display Log from the EVENT LOG menu.The error log is displayed one error per display screen. For example:This error is the first of six errors (it is also the latest error). This error was a 936 service error. To see thesecond service error, press . Pressing will display the sixth error as shown:2. Press Back once to exit the Display log, or press twice to exit the EVENT LOG.Event 1/6936 Svc ErrorEvent 6/6202.01 Paper Jam3-14
