Epson Stylus Pro 4000 Reference Manual page 26

Note:
Do not select ON if you are using non-Epson special media, or if the width
of paper you are using is less than 210 mm.
AUTO CLEANING
When you select ON and perform a nozzle check from the printer
driver or the control panel, the printer does not only check the
clogging nozzles, but also performs head cleaning automatically.
Note:
Do not select ON if you are using non-Epson special media, or if the width
of paper you are using is less than 210 mm.
QUIET CUT
When you select ON, the printer cuts the printout slowly to
decrease the cutting noise and paper particles.
INIT SETTINGS
You can set all setting values you have made in the PRINTER SETUP
to their factory set value.
TEST PRINT
This menu contains the following items.
NOZZLE CHECK
You can print a print head nozzle check pattern for each ink
cartridge. From the printing results, you can check whether or not
the nozzles are delivering ink properly. For details, see "Checking
the print head nozzles" on page 33.
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The Control Panel