User Manual Sharp AL-1551CS Laser Printer, Copier and Scanner

To use this unit, you must have an adequate amount of
hard disk space. If there is insufficient hard disk space,
delete unnecessary files to increase the free space of the
hard disk. If there is insufficient memory, close
unnecessary applications to increase memory available for
printing or scanning. If you are still unable to print or scan,
install more memory into your computer

If the margins are set outside of the quality guaranteed area,
smudges or smears may appear at the upper and lower edges
of the paper. When selecting the paper settings in the
application, set the margins from the top, bottom,left and right
edges of the paper to 5/32" (4 mm).

If the paper is curled, straighten it up and set it in the unit
again.

When data is frequently stored/deleted, the hard disk may
become fragmented causing a reduction in printing or
scanning speed. In this case it is recommended to defragment
your hard disk. You may use the Windows tools or a
commercially available hard disk defragmenting tool.