Typical cartridge selling prices (UK, pounds Sterling), including 17.5% VAT:
T0431 Black - £25.85
T0442 Cyan - £10.57
T0443 Magenta - £10.57
T0444 Yellow - £10.57
(prices from dabs.com 22nd January, 2004)
A complete replacement set of inks will set you back a not inconsiderable £57 or, while a Canon i865, for example, - which has five separate ink cartridges, will only set you back around £41.
We haven't yet run an exhaustive consumption test on the C84. We will update this page as soon as we get an opportunity to run our ink-depletion tests on a C84 printer. So we can't be sure, yet, if Epson C84 ink cartridges match rivals for value for money. However, as Epson employs single colour tanks, there will be minimal wastage, though the tanks are opaque so you can't actually see the ink levels. Epson's chipped cartridges log the print head cycles and lock out a cartridge after a set number of cycles, not when the ink is physically sensed as being close to depleted - a trick unique to Canon at present.