Lexmark T652 - Page 253

Print Contrast
This setting controls the developer voltage
oset.
1 From the Diagnostics menu, navigate to EP SETUP > Print Contrast.
2 Set the setting to Low, Medium, or High.
Note: Medium is the factory default setting.
3 Apply the changes.
Charge Roll
This setting controls the charge roll voltage.
1 From the Diagnostics menu, navigate to EP SETUP > Charge Roll.
2 Set the setting to Low, Medium, or High.
Note: Medium is the factory default setting.
3 Apply the changes.
Gap Adjust
The setting adjusts the minimum gap between sheets. Increasing this value reduces curl of some printed media
and eliminates some output bin stacking problems. This also results in slower overall performance, measured
in pages per minute.
1 From the Diagnostics menu, navigate to EP SETUP > Gap Adjust.
2 Adjust the setting.
Note: The range of values is 0 to 255. 0 is the factory default setting.
3 Apply the changes.
Auto Dark Adj
Enable this setting to optimize the amount of toner used when printing with a
specific
operating point.
Each time 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 reflectivity of the drum through the patches
• Cleans the transfer roll
• Calculates reflectivity ratios and operating points to attain the darkness target of each operating point
• Modifies the EP mechanism as necessary to adjust toner darkness
The cartridge smart chip controls how often this process executes.
1 From the Diagnostics menu, navigate to EP SETUP > Auto Dark Adj.
2 Select Enable or Disable.
3 Apply the changes.
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Service menus
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