Sharp FO-2150 Operation Manual page 185

Make sure the print cartridge is installed correctly.
Make sure you are using the correct type of paper. See
Types in Chapter 4 for more information.
Improperly formed or misaligned characters
Clean the print cartridge nozzles. See
Chapter 1.
Poor print quality at left, right, or bottom edge of page
Like other printers, your Sharp Color MFP cannot print in the extreme
left, right, or bottom edges of a page. To avoid poor print quality at the
edges of the page, we recommend your documents have these
minimum margin settings:
Left and Right Margins
Left and right margin settings must be at least 6.35 mm each for all
paper sizes except A4.
For A4 size paper, left and right margin settings must be at least
3.37 mm each.
Bottom Margin
The bottom margin setting for all paper sizes must be 12.7 mm.
For best printing results, use at least 16mm.
Top Margin
The top margin setting must be at least 3.39 mm.
Poor print quality at left, right, or bottom edge of envelope
Like other printers, your Sharp Color MFP cannot print in the extreme
left, right, or bottom edges of an envelope. To avoid poor print quality
at the edges of the envelope, we recommend you use these minimum
margin settings:
Printing problems
Paper
Cleaning the print nozzles in
12-19