Duplex Tests; Duplex Left Margin - Lexmark C720 Service Manual

5024-001

Duplex Tests

Duplex Left Margin

The left margin adjust lets the user set the left margin for the duplex
option so it matches the base machine left margin, for alignment
purposes. It can also be used to print a page for duplex testing.
To set the duplex left margin:
1. Enter diagnostic mode. See
for more information.
2. Select Duplex Test.
3. Select Duplex Left Margin.
4. Adjust left margin position using Menu> or Menu<.
5. To save the value press Select.
The range is 1 to 15.
An alignment page automatically prints for the change made. A
correct adjustment is determined when the page is held to the
light and the lines on both sides of the page line up with each
other.
6. Press Return to exit the diagnostic mode.
Note: The duplex feed test can be run using any of the paper
sizes supported.
Pressing Select causes the alignment pages for the duplex unit
to print. Once the pages have printed, the user needs to hold up
the two sheets as designated by the headings on the page "Top
of Sheet" to show the proper orientation of the page. Hold the
pages to the light and set the left margin to the value whose
vertical lines most closely align on the sheet. The printing
alignment page status message displays and the power
indicator blinks, while the pages are being fed through the
printer. The duplex left margin cannot be canceled.
"Diagnostic Mode" on page
Diagnostic Aids
3-5,
3-13