Epson IP4000 Printer

The Canon head is usually referred to as a semi-permanent head, in that
it lasts several or even many cartridges. It is not a regular
consumable, and it's cost is an indication of that, however, it will
eventually fail, as the nature of thermal heads is to break down over
time with use.

Epson heads should, at least in theory, last for the life of the
printer. Some do fail due to what I believe to be a design flaw. That
majority will give you many years of printing, although they may require
cleaning to keep them from clogging.

Art

Larry wrote:

In article , py
says...

hmmm...Canon too does have permanent head...
It's just ...well, first thing is chipped carts...





The Canon head is not "permanent" and can be replaced in less than a minute.

It is a simple "lift out" proceedure.