Epson Stylus C41 Series User Manual page 76

Head Cleaning
The Head Cleaning utility cleans the print head. You may need
to clean the print head if you notice print quality has declined.
Use the Nozzle Check utility first to confirm that the print head
needs to be cleaned. You can access the Nozzle Check utility
directly from the Head Cleaning utility. For details, see "Cleaning
the Print Head" on page 129.
Print Head Alignment
The Print Head Alignment utility aligns the print head. If you
notice a misalignment of vertical lines in your printouts, use this
utility as described below to realign the print head.
When you run the Print Head Alignment utility, the printer prints
test patterns that you use to check the print head alignment.
Here are sample printouts.
Printer Software Functions
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