Hello Everybody,

We have noticed that there is a gunk build up in the inkwell of older cartridges. We have the vacuum boiler and we leave cartridges in yellow solution for awhile (esp stubborn ones). I have read Hendos post on the HP new ink that builds up but does anybody have a process for getting rid of this gunk besides opening up the cartridges and cleaning them that way. I don't think the vacuum boiler works 100% on this.

Thanks