Thanks Michael.
Although it is the "lack of go" that I find creates the problem. If your not using them, the cartridges gum up over time. You can clean & correct it early on but if you leave them long enough with zero usage, it seems to harden up in deep enough that you throw out a cartridge that still has lots of ink left in it. This would likely never happen in a work environment where it is being used regularly.
I probably could have Googled the answer to this in the time it took to write the post but I suspect the powder toner of the laser printer verses liquid ink allows it to last much longer without clogging.
