Lexmark C 540n, Service Manual

Page: 104 / 262

3-14
Service Manual
5025-2xx, 4xx
Top Margin (duplex)
This setting controls the offset between the first scan line on the front of the duplex page and the first scan line
on the back of the page. Therefore, be sure to set the top margin in REGISTRATION before setting the duplex
top margin. See
“Registration” on page 3-4 .
To set the Top Margin (duplex):
1.
Select DUPLEX TESTS from Diag Menu, and press Select ( ).
2.
Select Quick Test , and press Select ( ).
3.
Select Single , and press Select ( ).
4.
Hold the page to the light to see whether the top margin of the back aligns with the top margin of the front.
5.
Select Top Margin from DUPLEX TESTS.
6.
Use or to select the margin setting you need to change.
•
Each increment shifts the duplex top margin by 1/100 of an inch.
•
The Top Margin (duplex) range is -50 to +50, and the default value is 0.
•
An increase in the value moves the backside top margin down and widens the top margin. A
decrease moves the top margin upward and narrows the top margin.
7.
Press Select ( ) to save the new value.
8.
Print the Quick Test (duplex) again (steps 1–4) to verify the adjustment. Repeat if necessary.
Left Margin (duplex)
This setting shifts the image on the back of the duplex sheet to the left or right to correctly position it on the page.
Therefore, be sure to set the top margin in REGISTRATION before setting the duplex top margin. See
“Registration” on page 3-4 .
To set the Left Margin (duplex):
1.
Select DUPLEX TESTS from Diag Menu, and press Select ( ).
2.
Select Quick Test , and press Select ( ).
3.
Select Single , and press Select ( ).
4.
Hold the page to the light to see whether the left margin of the back aligns with the left margin of the front.
5.
Select Left Margin from DUPLEX TESTS.
6.
Use or to select the margin setting you need to change.
•
Each increment shifts the duplex left margin by 4 pixels at 500 dpi (0.0067 inches or 0.1693 mm).
•
The Left Margin (duplex) range is -25 to +25, and the default value is 0.
•
An increase in the value moves the backside left margin to the right, and widens the left margin. A
decrease moves the backside left margin to the left, and narrows the left margin.
7.
Press Select ( ) to save the new value.
8.
Print the Quick Test (duplex) again (steps 1–4) to verify the adjustment. Repeat if necessary.