Hello have you gone any further on you toner refill business I too have done some research into supy of inks, rollers and blades. A total rebuild of a cartrage has to be done as the roller and blades usually wear out soon after the toner runs out!
I have an epson BX300F. I have a CISS but the ink monitor sensors its out of ink and I have to manually press the reset button on the CISS eveytime a cartrage is registering as out of ink!!
How can I "crack" this problem???:/