Platinum Printer Member
- Sep 10, 2007
- Reaction score
- Laramie, Wyoming
- Printer Model
- Canon i960, Canon i9900
True, it is possible to damage piezo heads if abused. BUT...have you noticed that the VAST majority of Canon print head failures posted here are from significant electronic failures? Those failures exhibited by large banks of nozzles stopping? The current density in the conductors, switches, and heaters is VERY HIGH compared to a piezo element, where MUCH smaller currents are required. In actuality, it doesn't seem to be individual bubble-jet nozzles that fail, but rather some circuitry removed from nozzle. The firing current just POURS into thermal print heads, requiring localized protection (temp sensors) that trigger a cool down pause from time to time during extended use. That is the number one reason I opt for slower printing ("night mode") in all my Canons. Slower printing equals less heating.I think I read that you can damage piezo head (EPSON) very easily if you do multiple deep cleanings in row like 15-25 cleanings. Perhaps the piezo transducers overheat, you know like in ultrasonic bath (you can't run those without water).
And bad CIS systems result in piezo head failues too, since mostly everyone is using CIS from china on EPSON that is. If a printer using piezo is used with bag type carts like EPSON, I'm sure it will outlast any canon printer but head replacement will be 2x more than canon. Just confirmed this on 4700D head vs. L800 piezo head.
Ultrasonic cleaners have piezo elements that operate continuously when in use, not so for a print head...unless it's during a cleaning cycle.
I have a "Chinese" CISS on my Epson Artisan 800. Is it trouble free? No. Has it caused a single nozzle failure? Not over three years of operation.