the Canon W2200 has an user installable print head in some click in
manner.
Canon is also changing the technology in their low cost printers:
the new iP1600 and iP2200 will have head and ink cartridge in one.
As far as I remember, all EPSON print heads are NOT user changable.
Rolf
Am 31.08.2005 um 17:18 schrieb Roberto Michelena:
Some time ago I had it quite clear that each on the big 3 inkjet
manufacturers used a distinctly different technology.
Please correct me if I'm wrong: About 4 years ago situation was like
this:
Epson : piezo inkjet heads: head is fixed on printer, cartridge only
has ink (and ink counter chips) ; in small printers head replacement
is not practical because it costs more than printer itself, in big
printers it's practical ; heads should last for over a year typically
before needing replacement
HP: thermal inkjet heads: head is on the cartridge, so when you
change ink you're changing head too
Canon: Bubblejet , similar technology to Thermal but relying on air
thermal expansion instead of ink thermal expansion ; heads were also
part of ink cartridge
but now situation seems to have changed... HP's midrange printers
(and some small ones) now have cartridges that doesn't include heads
in them. Same goes with Canon. But HP's heads are still a consumable,
supposed to be changed after a certain (relatively small) number of
cartridge changes. Not so with Canon, which seems to be similar to
Epson's approach.
So, what's inside each of this printers nowadays?
Epson 2400, 4800, etc.... clearly still piezo, head should last for
long time (over a year typically)
Canon i9100, i9950, W2200.... ???
HP 10ps, DesignJet 30 ??
