Duplex Tests - Lexmark W850n Service Manual

4024-110

DUPLEX TESTS

Only displayed if a duplex option is installed.
Quick Test (duplex)
This test prints a duplex version of the Quick Test that can be used to verify that the correct placement of the top
margin on the back side of a duplex page. You can run one duplexed page (Single), or continue printing
duplexed pages (Continuous) until Stop (
Make sure either Letter or A4 is loaded in the default paper source. If the default source supports only
envelopes, then the Quick Test will be printed from Tray 1.
To run the Quick Test (duplex):
1.
Select DUPLEX TESTS from DIAGNOSTICS.
2.
Select Quick Test from DUPLEX TESTS.
3.
Select Single or Continuous.
•
The single Duplex Quick test cannot be canceled.
•
The printer attempts to print the Quick Test Page from the default paper source. If the default paper
source supports only envelopes, then the page is printed from Tray 1.
•
Check the Quick Test Page for the correct offset between the placement of the first scan line on the
front and back side of a duplexed sheet.
The single test stops automatically when a single duplex sheet is printed, and the continuous test continues until
you press Stop (
Sensor Test (duplex)
This test is used to determine whether or not the duplex sensors and switches are working correctly. The test
allows you to actuate the duplex input sensor located in the back part of the duplex unit and the duplex exit
sensor located in the return paper path.
1.
Select DUPLEX TESTS from DIAGNOSTICS.
2.
Select Sensor Test from DUPLEX TESTS.
The message Sensor Test Testing displays.
3.
Select Duplex wait from the Sensor Test menu.
Manually actuate each of the duplex wait sensors. When the sensor is closed, Closed displays; when the
4.
sensor is open, Open displays.
Press Back ( ) or Stop (
3-8
Printer Service Manual
) is pressed.
)
.
) to exit the test.
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