Every printer manufacturer has designed their printers around different
markets, at least to some extent.
Epson, for instance, uses permanent heads, and has developed over the
years a design that allows for a larger variety of ink to work with
their printers, and in part, as a result, the art and photographic
market has been drawn to their products. They also produce a great
variety of paper types, and third party inks and papers even further
flesh out the options.
Canon redesigned their printers a few years back and made a lot of
improvements to them. They use a semi-permanent head, but recent spotty
reports have arisen that suggest the head life may be more limited than
originally expected, and the heads may not be available at reasonable
costs. They are fast printers and ink refills are easy to make, but the
inks, at least so far, need to be dye colorant type, and the Canon inks
have been shown to have poor fading characteristics, making them a poor
choice for artwork or long term images. There may be some new inks
coming onto the market and new papers to lessen that issue.
HP integrates most of the their heads within the cartridge, meaning the
head is replaced each time you buy and replace the cartridge. This
obviously can add to cost of the cartridge unit, but for some people it
offers quality control and peace of mind that should the head in the
cartridge fail for whatever reason, a new one is as close as the next
cartridge. Current HP inks seem to have a longer fade resistance than
current Canon inks. HP captures a lot of the office and school market
due to the simplicity of using their printers, and most offices do not
personally refill their ink cartridges.
There are also loyalties clients develop to certain brands due to their
personal experiences, which might lead someone to wish to buy one brand
over another, issues like durability, customer service, and so on.
It is not as cut and dried as you might consider it and history has
changed things. While Epson's output was by far much superior to all
other color inkjet printers several years back, the differences between
major brands are subtle at best today.
Art