Epson Stylus Pro 9500 Service Manual page 36

EPSON Stylus Pro 9500 Revision A
Note 2) When this error occurs, check the condition of the ink supply tubes.
Even if there is no problem, it should be recommended to the user
that the parts comprising the CR System periodic replacement parts
kit, which is scheduled for introduction be replaced. If the printer is to
be used until CR system periodic replacement parts kit parts are
replaced, carry out "CR Motor Initialization" in "Maintenance Mode 2"
and cancel the error.
Product Description Control Panel 36