When I use translucent carts in my S820 the status monitor will never warn
of low ink, yet it works perfectly when the carts are clear like Canon.
It's not that I don't use translucent ones, it's just I have to manualy
check them to be sure there not out of ink.
I've always wondered how those low ink indicators work.
I suspect they are just a counter and cycle counter in the rom, like,
print job =1
nozzle check =2
deep cleaning cycle =4
(1a+2a+4a) - 500 (arbitrary number)=
{turn on switch if set a is lower than number 500}
A/low ink indicator.
But what you're indicating is a permanent light actived switch built into
the sides of the print heads....if the light shines through to the other
side, it close/opens a switch that tell the "low indicator" light to come
on.
?