Lexmark MS71x, Service Manual

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Gap Adjust
The setting adjusts the minimum gap between sheets. Increasing this value may reduce curl of some printed media
and eliminate some output bin stacking problems. However, increasing this value also results in slower overall
performance, measured in pages per minute.
The range of values is 0 to 255, and the default value is 0.
To adjust this setting:
1
From the Diagnostics menu, navigate to:
EP Setup > Gap Adjust
2
Press OK or touch to save any changes.
Automatic Darkness Adjust (Auto Dark Adj)
When activated, this setting attempts 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.
Note: No messages are displayed on the control panel to give any indication that this test is running. The device
stores the results of its most recent process in the Auto dark Adj field on the Menu settings page report.
When deactivated, the printer disables and never executes this process.
To adjust this setting:
1
From the Diagnostics menu, navigate to:
EP Setup > Auto Dark Adj
2
Choose Enable or Disable .
3
Press OK to save any changes.
REPORTS
Menu Settings Page
This setting prints the Menu Settings Page. The report prints the Diagnostics Menu settings and their current values.
To print the menu settings page:
From the Diagnostics menu, navigate to EP Setup > Gap Adjust .
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Service menus
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