Lexmark 7462 series Service Manual page 268

3
Check the page for the correct offset between the placement of the first scan line on the front and back
side of a duplexed sheet.
4
If duplex top margin needs adjustment, then adjust first the top margin setting in the Registration menu.
Note: A positive offset moves the text down the page and widens the top margin, while a negative offset
moves the text up the page and narrows the top margin.
Top Margin
This setting controls the offset between the placement of the first scan line on the front and back side of a
duplex sheet.
Note: If duplex top margin needs adjustment, then adjust first the top margin setting in the Registration
menu.
1
Print a quick test page.
a
From the Diagnostics menu, navigate to DUPLEX TESTS > Quick Test.
b
Select Single.
c
Hold the page to light to see whether the top margins of the back and front side are aligned.
2
From the Diagnostics menu, navigate to DUPLEX TESTS > Top Margin.
3
Change the margin value.
Notes:
•
Changing the value by 1 unit moves the margin by 1/100 inch.
•
A positive value moves the text down the page and widens the top margin. A negative value moves
the text up the page and narrows the top margin.
4
Depending on your printer model, touch Submit or press the Select button to apply the changes.
5
To verify the adjustment, print a quick test page.
Sensor Test
This test determines whether the duplex sensors and switches are working properly.
1
From the Diagnostics menu, navigate to DUPLEX TESTS > Sensor Test.
Sensor Test Testing appears on the display.
2
Manually actuate the duplex input and exit sensors. The input sensor is in the back part of the duplex unit,
while the exit sensor is in the return paper path.
Note: CL or OP appears on the display to indicate whether the sensor or switch is closed (CL) or open
(OP).
3
Press the Stop button to exit the test.
Service menus
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