Digital BW, The Print

OTOH, I've has two separate instances of Inkjet Goodies Photo Cyan bulk dye 
ink for Canon printers going bad in less than a year.  It starts to grow 
some sort of sludge that will plug up a syringe (if you happen to get a 
glob of it on the end of the needle as you're trying to suck some up for a 
refill) and will plug up a head if it gets into the ink path of the 
printer.  IJG suggested to me that I pitch bulk PC inks after 6 months, and 
their other 5 colors for Canon after 12 months.  This might only be a 
problem with bulk inks, not pre-filled and sealed cartridges, and it may 
not be a problem for Epson inks, which I think are made a bit thicker and 
may have a different chemical composition.  But at least if you use bulk 
inks for Canon printers you might want to be careful after 6 months to a year.

Cheers,
Kip

At 5/9/2004 06:26 PM +0100, Steve wrote:

>On 9/5/04 6:00 pm, "Tom OConnell" <tomoc@...> wrote:
>
> > Sandy-
> >
> > The general estimate is 2 years for pigment inks...really really
> > conservative folks would say 12-18 months. So your 8 month old ink
> > should be good if it was fresh when you bought it.
> >
> > Dye inks should last a LOT longer since the particles are so much
> > smaller and theoretically never "settle out."
> >
> > cheers,
> >
> > Tom O'Connell
>
>I've just used some Epson dye cartridges for a 1200 thrown out at work as
>they 'expired' in 2002, they print perfectly.