Lexmark C 540n, Service Manual

Page: 94 / 262

3-4
Service Manual
5025-2xx, 4xx
Registration
Print registration makes sure the black printing plane is properly aligned on the page. This is one of the steps in
aligning a new printhead. See
“Alignment” on page 3-7 . It is also the first step in aligning the duplex
registration. See “Quick Test (duplex)” on page 3-13 .
To set print registration:
1.
Select Registration from the Diag Menu, and press Select ( ).
2.
Use or to select Print Quick Test , and press . See “Quick Test” on page 3-5 for additional
information.
The message
Printing…,
appears on the display, and the page prints.
Retain this page to determine the changes you need to make to the margin settings.
3.
Press Select ( ) to enter the Registration .
4.
Use or to select the margin setting you need to change, and press Select ( ).
5.
Use to decrease or to increase the offset values, and press Select ( ) to confirm the value.
The message
Submitting changes
displays, and the original margin setting screen appears.
The print registration ranges are:
Event Log
Display Log See “Display Log” on page 3-22 .
Print Log See “Print Log” on page 3-22 .
Clear Log See “Clear Log” on page 3-23 .
Exit Diags This selection exits the Diagnostics Menu. The printer performs a POR,
and returns to normal mode.
Description Value Direction of change
Top margin -50 to +50
Each increment corresponds to 8
scans at a 600 dpi scan rate (0.0133
inches or 0.339 mm)
.
The default is 0.
A positive change moves the image down the
page and increases the top margin. A negative
change moves the image up and decreases
the top margin. No compression or expansion
occurs.
Bottom margin -25 to +25
Each increment causes
approximately 0.55 mm shift in the
bottom margin.
The default is 0.
A positive offset moves text down the page and
narrows the bottom margin, while a negative
offset moves text up the page and narrows the
bottom margin. The image is compressed or
expanded.
Left margin -50 to +50
Each increment corresponds to 4
pixels at 600 dpi (0.00666 in. or
0.1693 mm).
The default is 0.
A positive change moves the image to the left,
and a negative change moves the image to the
right. No compression or expansion occurs.
Right margin -50 to +50
Each increment corresponds to an
approximate shift of 4 pixels at 600
dpi.
The default is 0.
A positive change moves the image to the left,
and a negative change moves the image to the
right.
Diagnostics Menu (continued)