Digital BW, The Print

I've been using an Epson 1160 for the past for years. Soon, I'll be
ordering my 7th sets of bulk ink bottles and also upgrading the CIS.
So far I've used the original Piezo inks, the MIS-FS and FSN and the
UT inkset. I'm going the the UT-FS inkset this time.

While I'm at it, I was wondering about the 1160. It works perfectly,
but isn't there some kind of scheduled maintenance service that should
be done or should I wait untill something breaks. Any parts that would
need to be replaced for continued troublefree printing ? All I've done
so far is reset the ink counter and sponge off excess ink on the
parking pads.

TIA,
Andre