Lexmark T420 User Reference page 83

Problem
Characters have jagged or uneven
edges, or image quality is poor.
The job prints, but the left and top
margins are incorrect.
Printing is too dark.
Pages are blank.
Solution
• Change the Print Resolution setting in the printer driver or in
the Local Printer Setup Utility. Use a print resolution higher
than 300 dots per inch (dpi). For more information, see
the Local Printer Setup
• If you are using downloaded fonts, verify that the fonts are
supported by the printer, the host computer, and the software
application.
• Resolution was automatically reduced. Reduce the
complexity of the print job or add printer memory.
• Make sure the Paper Size setting is set correctly in the printer
driver or in the Local Printer Setup Utility.
• Verify that the Print Area setting in the printer driver or in the
Local Printer Setup Utility is correct. Print a menu settings
page to verify this. For more information, see
menu settings page
Utility.
• Make sure the margins are set correctly in your software
application.
Change the Toner Darkness setting in the printer driver or in the Local
Printer Setup Utility. For more information, see
Printer Setup Utility.
For Macintosh users: Make sure the lines per inch (lpi) setting is not set
too high in the software application.
• The print cartridge may be out of toner or defective. Replace
the used print cartridge with a new one. See
print cartridge for instructions.
• You may have a software error. Try turning the printer off and
back on.
• Make sure the packaging material is removed from the print
cartridge. See page 71
information about removing the packaging.
• Check the print cartridge to be sure it is installed correctly.
See Replacing the print cartridge
83
Utility.
and Using the Local Printer Setup
Using the Local
of Replacing the print cartridge
for more information.
Using
Printing the
Replacing the
for