piezo, thermal, bubble...
piezo, thermal, bubble...
- Subject: piezo, thermal, bubble...
- From: Roberto Michelena <email@hidden>
- Date: Wed, 31 Aug 2005 10:18:57 -0500
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 ??
best regards,
-- Roberto Michelena
Infinitek
Lima, Peru
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden