Lexmark C520 Series, Service Manual

Page: 142 / 259

3-10
Service Manual
5022- xxx
Duplex tests
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 ( ) is pressed. For information about changing the margin, see “Top
Margin (duplex)” on page 3-10 .
Note: Before you set the duplex top margin, be sure to set the registration. See “Registration” on page 3-5 .
The paper you choose to print the page on should be either Letter or A4.
To run the Quick Test (duplex):
1.
Select Quick Test from DUPLEX TESTS.
2.
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.
•
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 (
)
.
Print Test (duplex)
This test provides service personnel with a way to verify the fuctioning of the printer’s duplex hardware. After the
user selects this test, the device automatically executes a continuous print test that generates a duplexed, color
output page. To stop the test, the user must press
Stop ( ). While this test executes, the power indicator light
blinks green and the panel displays “DUPLEX TESTS Printing...”.
The paper you choose to print the page on should be either Letter or A4.
To run the Print Test (duplex):
1.
Select Print Test from DUPLEX TESTS. The printer executes a continuous print test that generates a
duplexed, color output page.
2.
To stop the test, press Stop (
)
.
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 3-5 .
To set the Top Margin (duplex):
1.
Print the Quick Test (duplex):
a.
Select Quick Test from DUPLEX TESTS.
b.
Select Single .
c.
Hold the page to the light to see the whether the top margin of the backside aligns with the top margin
of the frontside.
2.
Select Top Margin from DUPLEX TESTS.